The modern standard of length is 1 m and the speed of light is approximately 2.99792 x 10^8 m/s. Find the time change in t for light to cover 1 m at the given speed.​

The displacement from Rhonda's car to her campsite 257 m, 34.4° north of west.

Most campgrounds have picnic tables, a place to park your car, and a place to pitch your tent. Bathrooms and taps are often shared. One of the joys of camping is the lack of outdoor gear. But it's also nice to have a comfortable, convenient and cozy campsite. A tent is a small shelter for sleeping while camping.

Camps are areas with tents campfires and surroundings. There are many types of camping but the main methods of camping are backpacking auto-camping and glamping. These top three camping styles have options for every level of camper. Front country camping is also called auto camping because you can drive to the campground. These campsites usually have running water and modern washrooms.

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The current produced by a 12-volt battery supplying 6 watts of power is 0.5 amperes.

To calculate the current produced by a 12-volt battery supplying 6 watts of power, we can use the formula:

current = power / voltage

Substituting the given values:

current = 6 watts / 12 volts

Simplifying the expression:

current = 0.5 amperes

Therefore, the current produced by the battery is 0.5 amperes.

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The current produced by a 12-volt battery supplying 6 watts of power is 0.5 amperes.

To calculate the current produced by a 12-volt battery supplying 6 watts of power, you can use Ohm's Law, which states that the current (I) is equal to the power (P) divided by the voltage (V):

I = P / V

Substituting the given values:

P = 6 watts

V = 12 volts

I = 6 watts / 12 volts

I = 0.5 amperes (A)

Therefore, the current produced by the 12-volt battery supplying 6 watts of power is 0.5 amperes.

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Answer:

100

Explanation:

As a 4-10 solar mass star leaves the main sequence on its way to becoming a red supergiant, its luminosity: remains roughly constant.

A common unit of mass used in astronomy is the solar mass (M), which is around 2 1030 kg. It is frequently used to denote the masses of black holes, galaxies, stellar clusters, nebulae, and other objects. Its mass is comparable to that of the Sun.

A solar mass is the fundamental unit of mass used by astronomers. It makes more sense to talk about such cosmic objects in terms of solar masses rather than a much smaller measure, such as kilos, because the majority of things in space are enormous and heavy, such as stars, galaxies, and black holes.

When a moderately big star, ranging in size from 8 to 40 solar masses, runs out of hydrogen shells around the core heat up sufficiently to start fusion.n fuel, it evolves off the main sequence and switches to fusing helium in its core, resulting in the formation of a red supergiant. This causes the star's radius to increase, which lowers the star's temperature.

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Answer:

Explanation:

The gravitational potential energy of a body can be found by using the formula

GPE = mgh

where

m is the mass

h is the height

g is the acceleration due to gravity which is 9.8 m/s²

From the question we have

GPE = 2 × 9.8 × 8 = 156.8

We have the final answer as

Hope this helps you

Answer:

a low protein diet helps you lose weight because lack of protein can make you lose muscle mass

Explanation:

It cuts your strength it makes it harder to keep your balance and slows your metabolism and later you get tired easily it leads to muscle wasting overtime and sheds your fat

The highest pressure is found in the depths of the ocean and the lowest pressure can be found in the Earth's atmosphere at high altitudes, such as in a vacuum.

Pressure is a measure of the force exerted by a fluid per unit area and it can vary greatly depending on the environment. The highest pressure is found in the depths of the ocean, where the pressure from the weight of the water column above increases with depth.

On the other hand, the lowest pressure can be found in the Earth's atmosphere at high altitudes, such as in a vacuum. A vacuum is a region with no matter, and thus no pressure, and is often found in outer space.

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Answer:

I think the answer is C.

Explanation:

the verticale distance of a wave from its crest to its trough

For the following:

The change in momentum of the body on striking the ground is equal to the initial momentum before firing vertically upward, which is p. Therefore, the answer is (b) p.

The temperature of a body depends upon the average kinetic energy of molecules. Therefore, the answer is (b) speed.

The distance moved by the force is equal to the product of the initial velocity ( V₀) and the time (1 sec) plus half the product of the force (F) and the square of the time (1 sec) divided by the mass (1 kg).

Therefore, the answer is (b) V₀ + F/2.

The total kinetic energy before the explosion is equal to the sum of the kinetic energies of the two pieces after the explosion.

Since the mass and velocity of one of the pieces, calculate its kinetic energy using the formula KE = (1/2)mv².

Therefore, the kinetic energy of the other mass is (b) 32J.

Foams and cotton clothes are used to absorb water because of their (c) capillary action. Capillary action refers to the ability of a substance to draw liquid into its small spaces or pores.

In a spectrum, red color is deviated to a lesser extent than all the other colors because its velocity is (b) less than all the other colors. The speed of light in a medium depends on the refractive index, which is different for different colors. Red light has a lower refractive index compared to other colors, causing it to be deviated to a lesser extent.

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The radius of the curvature will be 1.49 m. Because to balance the passengers safely, acceleration due to gravity (mg) should be equally balanced by centripetal force (Fc).

What is Centripetal force?

The force applied to an item in curved motion that is pointed toward the axis of rotation or the centre of curvature is known as a centripetal force.

\(F = \frac{Mv^{2}}{r}\)

What is acceleration?

It is a vector quantity that can be described as the speed at which an object changes its speed. When an object's velocity changes, it is said to be accelerating.

What are the calculations?

\(F_{c} = m a_{c} \\mg = ma_{c} \\g = a_{c} \\9.8 m/s = a_{c} \\V = 12 m/s (given)\\a_{c} = \frac{V^{2} }{r} * r\\V = \sqrt{a_{c} r } \\12 m/s = \sqrt{9.8* r} \\\frac{12}{9.8} ^{2} = r\\\\1.49 m = r\)

Hence, the radius of the curvature will be 1.49 m.

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Answer:

a. 26.7 cm. b. 11.4 cm.

Explanation:

a. We know h'/h = d'/d where h' = image height = + 2 cm (since it is a real image), h = object height = + 1.5 cm, d' = image distance from mirror and d = object distance from mirror = 20 cm

So, from h'/h = d'/d

d = h'd/h

= 2 cm × 20 cm/1.5 cm

= 40/1.5 cm

=  26.67 cm

≅ 26.7 cm

The position of the image is 26.7 cm from the mirror

b. Using the mirror formula

1/d + 1/d' = 1/f where d = object distance from mirror = + 20 cm, d' = image distance from mirror = + 26.7 cm (its positive since its a real image) and f = focal length of mirror.

So, 1/d + 1/d' = 1/f

⇒ f = dd'/(d + d')

= 20 cm × 26.7 cm/(20 cm + 26.7 cm)

= 534/46.7

= 11.43 cm

≅ 11.4 cm

The focal length of the mirror is 11.4 cm

The thrust of a rocket is 4606 KN, and per second, a rocket engine needs to burn 118 kg of fuel. If the exhaust speed is 5000 metres, Anything that may cause chemical reactions with other substances.

for use in work or for the release of energy as thermal energy. To create a high-speed, propulsive jet of fluid, typically high-temperature gas, a rocket engine uses stored rocket propellants as the reaction mass. By projecting mass rearward in accordance with Newton's third law, reaction engines like rocket engines generate thrust. Speed must be a scalar number because it lacks a directional component.

v = u log(Mo /M) v = 1000 log(Mo/Mo/100) = 1000*2.303*2 = 4606 KN. dm/dt = 118 kg/sec u = 1000 m/s = u(dm/dt) = 1000*118 = 118000N

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The non-conservative work done on the stone (Wnc) is equal to the change in mechanical energy is -4.8 J.

To find the non-conservative work (Wnc) done on the stone, we need to consider the change in mechanical energy.

The mechanical energy of an object consists of its potential energy (PE) and kinetic energy (KE):

Mechanical Energy (E) = Potential Energy (PE) + Kinetic Energy (KE)

At the initial position, when the stone is dropped, all its energy is in the form of potential energy since it is not yet in motion. The potential energy can be calculated using the formula:

PE = m * g * h

where:

m = mass of the stone = 0.05 kg

g = acceleration due to gravity = 9.8 m/s^2

h = height = 10 m

PE = 0.05 kg * 9.8 m/s^2 * 10 m

PE = 4.9 J

At the final position, just before the stone strikes the ground, its energy is in the form of kinetic energy. The kinetic energy can be calculated using the formula:

KE = (1/2) * m * v^2

where:

m = mass of the stone = 0.05 kg

v = velocity = 2 m/s

KE = (1/2) * 0.05 kg * (2 m/s)^2

KE = 0.1 J

The change in mechanical energy (ΔE) is given by:

ΔE = KE - PE

ΔE = 0.1 J - 4.9 J

ΔE = -4.8 J

The negative sign indicates that there was a loss of mechanical energy due to non-conservative forces such as air resistance or friction.

Therefore, the non-conservative work done on the stone (Wnc) is equal to the change in mechanical energy. So, the non-conservative work done on the stone is -4.8 Joules.

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The 20-amp circuit breaker may not remain operational if the 910-watt waffle iron, 895-watt toaster, and 691-watt coffeemaker are all running at the same time.

In circuit breaker:

The total power consumption of these appliances exceeds the maximum power that the circuit breaker can handle, which is 20 amps multiplied by 120 volts, or 2,400 watts.

To determine the total power consumption of the appliances, we can add up their individual power ratings:

910 watts (waffle iron) + 895 watts (toaster) + 691 watts (coffeemaker) = 2,496 watts

This is greater than the maximum power that the circuit breaker can handle, so if all three appliances are running simultaneously, the circuit breaker will trip, causing a power outage.

To avoid this situation, you can stagger the use of the appliances or plug them into different outlets on different circuits.

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Answer:4 and 5

Explanation:it you add 1+3 and 2+3 it is 4 and 5

To determine the wavelength of the light used in the experiment, we would need additional information or context about the experiment itself. information provided in the previous question about the current and charge of a lightning bolt does not directly give us the wavelength of the associated light

The given information about the current and charge of a lightning bolt does not provide any direct information about the wavelength of the associated light. To determine the wavelength of the light used in the experiment, we need additional information or assumptions about the nature of the experiment. The information provided in the previous question about the current and charge of a lightning bolt does not directly give us the wavelength of the associated light.

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When a negatively charged plastic rod is brought near the north pole of a metal bar magnet, the pole will turn towards the rod.

This is because the plastic rod induces a temporary magnetic field in the bar magnet which is opposite in polarity to the north pole. As a result, the north pole is attracted to the rod and turns towards it.

Similarly, when the plastic rod is brought near the south pole of the magnet, the south pole will turn towards the rod as the induced magnetic field in the bar magnet is now aligned with the south pole.

Thus, the correct answer is option d) both poles are attracted to the rod.

It is important to note that the strength of the induced magnetic field in the bar magnet is proportional to the strength of the magnetic field of the plastic rod and the distance between the rod and the magnet.

The closer the rod is to the magnet, the stronger the induced magnetic field and the greater the attraction between the rod and the magnet.

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the first equation of motion, is determined as v = u + at.

The derivation of the first equation of motion by graphical representation​ is determined as follows;

Consider the diagram in the image attached;

Let, OE = time (t)

From the graph:

BE = AB + AE

v = DC + OD (QAB = DC  and AE = OD)

v = DC + v [QOD = u]

v = DC + v -------(1)

Now, Acceleration, a= Change in Velocity/ Time taken

a = (v – u)/ t

a = (OC – OD)/ t = DC/ t

at = DC --------(2)

By substituting the value of DC from (2) in (1):

We get:

v = at + u

v = u + at

Thus, the first equation of motion, is the relationship between the final velocity, initial velocity, acceleration and time of motion.

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Answer:

The use of a controlled experiment would allow seeing what happens normally and see the result of an another experiment which tampers with a variable

Answer:

electric field to be measured and influence the source producing electric field to be measured.

Explanation:

The test charge used to mea... To measure the electric field at a point, the test charge used should be very small so that it does not change the electric field to be measured and influence the source producing electric field to be measured.

Answer:

10 ohms

Explanation:

V = IR

2 v is the drop in the battery

2 = .2 R

R = 10 ohms

Answer:

0.83m/s,east

Explanation:

velocity=d/t

v=50/60

v=0.83m/s,east

The measured specific heat will be less than the actual specific heat if a lower value is gotten than the actual mass.

This is defined as the quantity of heat needed to raise a substance's temperature by 1 degree Celsius.

If a substance has a low specific heat capacity , it loses water easily which makes the mass when measured to be smaller than the actual value.

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The normal force acting on the mountain goat is 450 N and the static friction force acting on the goat is 779.4 N.

The weight of the mountain goat is 900 N, which acts vertically downwards. On a slope angled at 60° from the horizontal, the normal force (N) and the static friction force (f) act perpendicular to each other.

The normal force is the component of the contact force perpendicular to the slope and is given by:

N = mg cos(θ)

where m is the mass of the goat, g is the acceleration due to gravity, and θ is the angle of the slope from the horizontal.

N = (900 N) cos(60°)

N = 450 N

The static friction force is the component of the contact force parallel to the slope and is given by:

f ≤ μN

where μ is the coefficient of static friction between the hooves of the goat and the surface of the slope.

Since the goat is not slipping on the slope, the static friction force is equal and opposite to the component of the weight of the goat parallel to the slope. This can be calculated as:

f = mg sin(θ)

f = (900 N) sin(60°)

f = 779.4 N

Therefore, the normal force acting on the mountain goat is 450 N and the static friction force acting on the goat is 779.4 N.

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Answer:

A) 30 N right

Explanation:

your welcome

Answer:

how much?

Explanation:

To determine the magnitude and direction of the magnetic field, we can use the formula for the magnetic force experienced by a charged particle in a magnetic field.

The magnetic force is given by the equation F = qvB sinθ, where F is the force, q is the charge of the particle, v is the velocity of the particle, B is the magnitude of the magnetic field, and θ is the angle between the velocity vector and the magnetic field vector.

For the proton, we have F = 2.25 * 10^-16 N, q = +1.6 * 10^-19 C, and v = 1.50 km/s. Since the force is in the y-direction, and the velocity is in the x-direction, the angle between the two vectors is 90 degrees. Plugging these values into the formula, we can solve for the magnitude of the magnetic field B.

For the electron, we have F = 8.50 * 10^-16 N, q = -1.6 * 10^-19 C, and v = 4.75 km/s. Again, since the force is in the y-direction and the velocity is in the z- direction, the angle between the two vectors is 90 degrees. Using the same formula, we can solve for the magnitude of the magnetic field B.

In this problem, we are given the forces experienced by a proton and an electron in a magnetic field. By applying the formula for the magnetic force and using the given values, we can determine the magnitude and direction of the magnetic field.

The force experienced by the proton is in the y-direction, which means the magnetic field must have a component in the y-direction. The angle between the velocity of the proton and the magnetic field is 90 degrees, as the velocity is in the x-direction. Using the formula F = qvB sinθ, we can solve for the magnitude of the magnetic field.

Similarly, the force experienced by the electron is also in the y-direction, indicating that the magnetic field has a component in the y-direction. The angle between the velocity of the electron and the magnetic field is 90 degrees, as the velocity is in the -z direction. Applying the formula, we can calculate the magnitude of the magnetic field.

By determining the magnitudes of the magnetic field from the forces experienced by both particles and considering the direction of the forces, we can fully describe the magnetic field in terms of its magnitude and direction.

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Answer:

The contact between lithospheric plates is called a. plate boundary. The center of a mid-ocean ridge is where. new oceanic lithosphere is being created.

Explanation:

The Earth’s lithosphere, which includes the crust and upper mantle, is made up of a series of pieces, or tectonic plates, that move slowly over time.  A divergent boundary occurs when two tectonic plates move away from each other. Along these boundaries, earthquakes are common and magma (molten rock) rises from the Earth’s mantle to the surface, solidifying to create new oceanic crust. The Mid-Atlantic Ridge is an example of divergent plate boundaries.  When two plates come together, it is known as a convergent boundary. The impact of the colliding plates can cause the edges of one or both plates to buckle up into a mountain ranges or one of the plates may bend down into a deep seafloor trench. A chain of volcanoes often forms parallel to convergent plate boundaries and powerful earthquakes are common along these boundaries. The Pacific Ring of Fire is an example of a convergent plate boundary.  At convergent plate boundaries, oceanic crust is often forced down into the mantle where it begins to melt. Magma rises into and through the other plate, solidifying into granite, the rock that makes up the continents. Thus, at convergent boundaries, continental crust is created and oceanic crust is destroyed.  Two plates sliding past each other forms a transform plate boundary. One of the most famous transform plate boundaries occurs at the San Andreas fault zone, which extends underwater. Natural or human-made structures that cross a transform boundary are offset—split into pieces and carried in opposite directions. Rocks that line the boundary are pulverized as the plates grind along, creating a linear fault valley or undersea canyon. Earthquakes are common along these faults. In contrast to convergent and divergent boundaries, crust is cracked and broken at transform margins, but is not created or destroyed.

Answer:

              It is called a plate boundary. Contact plates are the standard devices for environmental monitoring of surfaces and personnel in cleanrooms and isolators.

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