a car moves 10 miles in one direction and moves another direction for 15 more miles, what is the total distance traveled by the car?​

Answer:

sound wave-electrical wave-radio wave

Answer:

D

Explanation:

on edg

The statement which is correct about the lighter dart leaves the spring moving faster than the heavy dart. Option B is correct.

This is because both darts are launched with the same initial elastic potential energy from the compressed springs, but the lighter dart has less mass than the heavier dart. According to the law of conservation of energy, the lighter dart must move faster than the heavier dart in order to have the same amount of kinetic energy as the heavier dart once it leaves the spring.

The initial potential energy is the same for both darts, and since the potential energy is converted to kinetic energy, the lighter dart must have a higher velocity than the heavier dart in order to have the same amount of kinetic energy.

Therefore, option B is correct, while options A, C, D, and E are not, as they do not accurately describe the behavior of the darts in this scenario.

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--The complete question is, A heavy dart and a light dart are launched horizontally on a frictionless table by identical ideal springs. Both springs were initially compressed by the same amount. Which of the following statements about these darts are correct?

A) The darts both have the same kinetic energy just as they move free of the spring.

B) The lighter dart leaves the spring moving faster than the heavy dart.

C) The heavy dart had more initial elastic potential energy than the light dart.

D) Both darts move free of the spring with the same speed. E) Both darts had the same initial elastic potential energy.--

When scientists calculate the trajectory a satellite takes on its way to

study a planet, they use C. Speed, Velocity, and acceleration.

A trajectory, often known as a flight path, is the route taken by an object moving under the influence of gravity. Typically, the phrase is applied when referring to projectiles or satellites.  A parabola curve is usually a decent approximation of the trajectory form when an object is propelled for in a short distance.

When scientists calculate the trajectory a satellite takes on its way to

study a planet they take the speed, velocity, and acceleration into consideration.

The formula for calculating the trajectory can be expressed as:

\(\mathbf{y = h + xtan (\alpha) - \dfrac{gx^2 }{2V_o^2cos^2 (\alpha)}}\)

where;

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Answer:

the answer is e because it just is

Answer:Minerals are naturally occurring inorganic substances, often with a crystalline structure. They are composed largely of the most abundant elements in the Earth's crust, silicon and oxygen, coupled with metals or the metallic elements of iron, calcium, sodium, potassium, and magnesium.

Explanation:Hope this helped u also may i plz have brainlist plz only if u wanna give me brainlist though. Have an great day kind sir or ma'am!

Answer:

The rocks and minerals of the Earth consist of inorganic compounds

Explanation:

An inorganic compound is typically a chemical compound that lacks carbon–hydrogen bonds, that is, a compound that is not an organic compound. However, the distinction is not clearly defined; authorities have differing views on the subject. The study of inorganic compounds is called inorganic chemistry.

Ggle def of inorganic compounds ...

Answer:

I am confused, is this a true and false answer?

Answer: As the skydiver gains speed, their weight stays the same but the air resistance increases. There is still a resultant force acting downwards, but this gradually decreases. ... When the parachute opens, the air resistance increases. The skydiver slows down until a new, lower terminal velocity is reached.

Answer:

5.0 x 10^8

Explanation:

because u moved it 8 times to it places

Answer:

v2 = - 16.899 m/s

velocity of ball increases so that the kinetic energy of the ball increases.

Explanation:

given data

mass of elephant, m1 = 5500 kg

mass of ball, m2 = 0.160 kg

initial velocity of elephant, u1 = - 4.70 m/s

initial velocity of ball, u2 = 7.50 m/s

solution

we consider here final velocity of ball = v2

so  collision formula is express as for v2

\(v_{2}=\left ( \frac{2m_{1}}{m_{1}+m_{2}} \right )u_{1}+\left ( \frac{m_{2}-m_{1}}{m_{1}+m_{2}} \right )u_{2}\)      .................1

put here value and we get

\(v_{2}=\left ( \frac{2\times 5500}{5500+0.160} \right )(-4.70)+\left ( \frac{0.16-5500}{5500+0.160} \right )(7.50)\)  

solve it we get

v2 = - 16.899 m/s

here negative sign shows that the ball bounces back towards you

and

here we know the velocity of ball increases so that the kinetic energy of the ball increases.

and due to this effect, it will gain in energy is due to the energy from the elephant mass

The current flowing in the 2Ω and 1Ω is 1.14 A and the current flowing in the 3Ω and 4Ω is 0.286 A.

The value of the current in each resistor is calculated by applying Kirchoff voltage law as follows;

The total voltage in loop 1 is calculated as;

2 + 4 - I₁R₁ - (I₁ - I₂)R₂ - I₁R₃ = 0

6 - 2I₁ - 3(I₁ - I₂) - 1₁ = 0

The current flowing in loop 2 is calculated as;

I = V/R

I₂ = ( 6 V - 4 V ) / (3 + 4)

I₂ = 0.286 A

The value of the current flowing in loop 1 is calculated as;

6 - 2I₁ - 3(I₁ - I₂) - 1₁ = 0

6 - 2I₁ - 3(I₁ - 0.286) - 1₁ = 0

6 - 3I₁ - 3₁ + 0.858 = 0

-6I₁ = -6.858

I₁ = 6.858 / 6

I₁ = 1.14 A

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Answer:

5.3 m

Explanation:

Your friend is 1800 mm tall, and you want them to fill half the frame (79 mm / 2 = 39.5 mm).

The film is 116 mm behind the lens.  Using similar triangles:

x / 1800 = 116 / 39.5

x = 5286

Rounded to two significant figures, your friend should stand 5.3 meters away.

Answer:

e^-4t e^-5t

Explanation:

solving s²+9s+20 quadratically we have (s+4)(s+5)

x(s) can be written as x(s) =(1/s+4)(1/s+5)

if we take the laplace inversve

L-¹ (s)=L-1(1/s+4) L-1(1/s+5)

we have e^-4t e^-5t

The terminal velocity of the sphere is approximately 22.68 mph.

The terminal velocity of a sphere is the constant speed at which the gravitational force pulling the sphere down is balanced by the drag force pushing the sphere up. The drag force is proportional to the velocity of the sphere, and can be calculated using the following formula:

Fd = (1/2) * rho * Cd * A * v²

where Fd is the drag force, rho is the density of the fluid (air in this case), Cd is the drag coefficient (which depends on the shape of the object), A is the cross-sectional area of the object perpendicular to the direction of motion, and v is the velocity of the object.

The gravitational force pulling the sphere down is given by:

Fg = m * g

where m is the mass of the sphere and g is the acceleration due to gravity.

At terminal velocity, the drag force is equal in magnitude to the gravitational force, so:

Fd = Fg

Substituting the expressions for Fd and Fg and solving for v, we get:

v = √((2 * m * g) / (rho * Cd * A))

where A = pi * r² is the cross-sectional area of the sphere, and r is the radius of the sphere.

Plugging in the given values, we get:

v = sqrt((2 * 0.6 * 9.81) / (1.2 * 0.47 * pi * 0.3²)) ≈ 10.13 m/s

To convert this to mph, we multiply by 2.23694:

v ≈ 22.68 mph

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Yes, if a body is floating in a liquid, the rise in the liquid level is equal to the body height. This phenomenon is known as Archimedes' principle.

Archimedes' principle says when a body is immersed in a fluid (liquid or gas), it experiences an upward buoyant force equal to the weight of the fluid displaced by the body. Buoyant forces act in the opposite direction to gravity.

When a body floats in a liquid, it displaces a volume of liquid equal to its volume. As a result, the liquid level rises by an amount equal to the height of the submerged part of the body.

This principle holds for objects that float or are partially immersed in a liquid, such as a buoyant boat or a floating object. However, if the body sinks completely into the liquid, the liquid level rise will no longer be equal to its height. Instead, it depends on the density and volume of the submerged object.

The banking angle is the angle that the surface makes with the horizontal, or the angle of inclination.

v = √rg tanθ

tanθ=v²/rg  

The relation gives the angle of banking of the cyclist going round the curve. Here v is the speed of the cyclist, r is the radius of the curve, and g is the acceleration due to gravity.

The banking angle is the angle that the surface makes with the horizontal, or the angle of inclination. The normal force acting on the car while travelling through such a curving road has a horizontal component. The centripetal force needed to prevent skidding is provided by this component.

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Answer:

50 m/s

Explanation:

Hi.

just for little clarification, I'd explain what a tail wind is, if you don't mind.

A tail wind is a wind that moves in the direction of the aircraft. If an aircraft is moving in a direction northwards, then a tail wind is also a wind moving northwards.

Now to the question, the airplane is flying at, 150 km/h with a tail wind of 30 km/h.

The airplane's speed is then,

150 + 30 = 180 km/h

And to convert to m/s, we have

180 km/h = 180 * 1000/3600 m/s

180 km/h = 50 m/s

Answer:

A. 200 Hz

B. Speaker B.

Explanation:

We'll begin by defining the frequency.

The frequency of a wave is defined as the number of vibrations made in 1 second. Mathematically it can be represented as:

Frequency (f) = number of vibration (n) / time (t)

f = n / t

A. Determination of the frequency produced by loud speaker A.

Number of vibrations (n) = 200

Time (t) = 1 s

Frequency (f) =?

f = n / t

f = 200 / 1

f = 200 Hz

B. Determination of the loudspeaker that produces the highest frequency of vibrations.

We shall determine the frequency produced by each speaker. This is illustrated below:

For speaker A:

Number of vibrations (n) = 200

Time (t) = 1 s

Frequency (f) =?

f = n / t

f = 200 / 1

f = 200 Hz

For speaker B:

Number of vibrations (n) = 400

Time (t) = 1 s

Frequency (f) =?

f = n / t

f = 400 / 1

f = 400 Hz

SUMMARY:

Speaker >>>> Frequency

A >>>>>>>>>> 200 Hz

B >>>>>>>>>> 400 Hz

From the above illustration, speaker B produces the highest frequency of vibration.

Answer:

ANSWER is (B)

Explanation:

jxkalxna,x The correct option is : The water will vibrate with less intensity

Answer:

lowers :)

Explanation:

A car of mass 1364 kg which is moving at a constant velocity of 23 m/s then the net force acting on the car is 31,372 N.

In physics, a strain is an effect with the ability to alter the velocity of an object. A force can influence a surplus object's velocity to alter or rise. To describe force, a pushing or a pulling makes intuitive sense. Forces have both size and direction, since they are vector quantities. It is measured in newtons using the SI system (N). F is the symbol that denotes force.

Given data provided by the question,

Mass, m = 1364 kg and,

Velocity, v = 23 m/s

Force, F = 1364 × 23

F = 31,372 N.

Therefore, the force is 31,372 N.

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Answer:

a) The stone takes 10.2 seconds to reach the bottom of the cliff.

b) The stone was thrown at a horizontal speed of 31.3 m/s

Explanation:

Horizontal Motion

Suppose an object is launched horizontally with an initial speed v from a height h, the range or maximum horizontal distance traveled by the object can be calculated as follows:

\(\displaystyle d=v\cdot\sqrt{\frac {2h}{g}}\)

If we don't know the speed, we can solve the equation for v:

\(\displaystyle v=d\cdot\sqrt{\frac {g}{2h}}\)

Another useful formula allows us to calculate the distance traveled by the object in terms of the time:

\(\displaystyle y=\frac{g.t^2}{2}\)

To calculate the time the object takes to hit the ground, we solve the above equation for t:

\(\displaystyle t=\sqrt{\frac{2y}{g}}\)

a) The stone is thrown horizontally from a height h=50 m and it lands at a horizontal distance of d=100 m. Use the last equation to calculate the time taken to reach the ground. Note the distance traveled y is replaced by the total height h:

\(\displaystyle t=\sqrt{\frac{2\cdot 50}{9.8}}\)

t=10.2 s

The stone takes 10.2 seconds to reach the bottom of the cliff.

b) The initial speed is:

\(\displaystyle v=d\cdot\sqrt{\frac {g}{2h}}\)

\(\displaystyle v=100\cdot\sqrt{\frac {9.8}{2\cdot 50}}\)

v=31.3 m/s

The stone was thrown at a horizontal speed of 31.3 m/s

Answer:

(A) the angular acceleration of the blades is 13.33 m/s.

Explanation:

Given;

moment of inertia of a blade, I = 0.2 kgm²

net torque exerted on fan blades, ∑τ =  8Nm

Torque is given as product of moment of inertia and angular acceleration;

τ = Iα

where;

α is the angular acceleration

Since there are three blades of the ceiling fan, the net torque is given as;

∑τ = (3I)α

∑τ = 3Iα

α = ∑τ / 3I

α = (8) / (3 x 0.2)

α = 13.33 m/s

Therefore, the angular acceleration of the blades is 13.33 m/s.

Answer:

The velocity at which the ball leave the ground is 6.62 m/s.

Explanation:

Given;

mass of tennis ball, m = 60 g = 0.06 kg

height at which the ball fell, h = 2.9 m

percentage of kinetic energy lost, = 23%

The potential energy of the tennis ball = mgh = 0.06 x 9.8 x 2.9

                                                                            = 1.7052 J

As the ball hits the ground, the potential energy of the ball is converted to kinetic energy.

K.E = 1.7052 J

Kinetic energy lost = 0.23 x 1.7052

                                = 0.392 J

The remaining kinetic energy ΔK.E = 1.7052 J - 0.392 J

                                                  = 1.3132 J

The velocity at which the ball leave the ground is calculated as;

ΔK.E = ¹/₂mv²

\(v = \sqrt{\frac{2\Delta K.E}{m} } \\\\v = \sqrt{\frac{2\times 1.3132}{0.06} }\\\\v = 6.62 \ m/s\)

Therefore, the velocity at which the ball leave the ground is 6.62 m/s.

The  concentration of the solution will be 0.25M and the concentration of the  

sodium Hydroxide is 2.5 M .

A branch of chemistry deals with the application of  the laws of definite proportions and of the conservation of mass and energy to chemical activity. The quantitative relationship between constituent in a chemical substance.  

We have given here,

Moles of sodium chloride  =  0.25moles

Let us assume the the volume of  the solution is 1 L.

Molarity = 0.25/

Molarity will be 0.25 M

The mass of sodium Hydroxide is 20g and the molar mass is 40g ,

and the Volume will be 0.2L

Molarity = 20/ 40×0.2

Molarity = 2.5 mol / L

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Recall that

v² - u² = 2 a ∆x

where u and v denote initial and final velocities, respectively; a is acceleration; and ∆x is the distance traveled.

Then we get

(18 m/s)² - (26 m/s)² = 2 a (52 m)

a = ((18 m/s)² - (26 m/s)²) / (104 m)

a ≈ -3.4 m/s²

The polynomial relationship between position and time for the bowling ball is linear.

A linear relationship between two variables is a term used to describe a straight-line relationship between the two variables.

Linear relationships can be expressed either in a graphical format or as a mathematical equation of the form y = mx + b.

From the equation of linear relationship between two variable, the highest power of x is one.

The given equation for position and time;

x(t) = vot + xo

From this given equation, the highest power of t is one, hence it is called linear relationship.

Thus, the polynomial relationship between position and time for the bowling ball is linear.

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Answer:

I believe it improves your hearts stroke volume

If im wrong plz let me know

Answer:

lowers you blood pressure

improves you're heart's stroke volume

helps you lose weight

Explanation:

Just trust me bro.

Doing cardiovascular exercise on a daily basis strengthens the heart and improves stamina requiring less energy to pump blood and oxygen to muscles.

Also cardiovascular exercise is the best for losing weight out of the 3 main exercises.

Answer:

Nuclear Power Plant

Explanation:

Heat produced during nuclear fission to heat water. In nuclear fission, atoms are split apart to form smaller atoms, releasing energy. Fission takes place inside the reactor of a nuclear power plant. At the center of the reactor is the core, which contains uranium fuel.

Answer:diagram....???

geologic time scale what evolve

Answer:

If below is the same diagram:

B. animals appeared on Earth before flowering plants.

good luck, i hope this helps :)

Answer:

Suppose that the family's monthly income is X.

we know that they spend:

(3/7)*X on food.

(5/14)*X on clothing

(1/5)*X on rent.

a) what fraction of the family's income is spent in other things?

To solve this, we assume that N is spent on other things, then we should have that:

(3/7)*X + (5/14)*X + (1/5)*X + N*X = X

We can divide both sides by X to remove it, so we get:

(3/7) + (5/14) + (1/5) + N = 1

we can solve this for N.

3/7 + 5/14 + 1/5 + N = 1

6/14 + 5/14 + 1/5 + N = 1

(6 + 5)/14 + 1/5 + N = 1

11/14 + 1/5 + N = 1

The smallest common factor of 14 and 5 is 14*5 = 70

Then we need to multiply the first fraction by (5/5) and the second by (14/14)

(5/5)*(11/14) + (14/14)*(1/5) + N = 1

55/70 + 14/70 + N = 1

69/70 + N = 1

N = 1 - 69/70 = 1/70

N = 1/70

This means that they spent 1/70 of their monthly income on other things.

b) One particular month, the family spends  GH¢2,400 on other things, then if the monthly income is X, we have:

(1/70)*X = GH¢2,400

X = 70* GH¢2,400 = GH¢168,000

This means that the monthly income of the family is GH¢168,000

And we know that they spend (5/14)*X on clothing, then this month they spent:

(5/14)*GH¢168,000 = GH¢60,000 on clothing.

The difference in the elevation is 4505 meters.

A geographic location's elevation is its height above or below a fixed reference point, most commonly a reference geoid, which is a mathematical model of the Earth's sea level as an equipotential gravitational surface.

Elevations are classified into four types: front elevation, side elevation, rear elevation, and split elevation.

In this case, the lowest point in Death Valley is 85 m below sea level. The summit of nearby Mt. Whitney has an elevation of 4420 m above sea level. The difference will be:

= Highest point - Lowest point

= 4420 - (-85)

= 4420 + 85

= 4505 m

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Complete question

The lowest point in Death Valley is 85 m below sea level. The summit of nearby Mt. Whitney has an elevation of 4420 m above sea level. What is the difference in the elevation?