Match the math problem to the correct equation you would use to solve it

Answer:

59.18 kg

Explanation:

use f=ma

f= 580 N

a = 9.8 m/s 2

weigh(m) doesn't change only force(F) changes

Answer: 219.6N

Explanation:

Find the mass of this person by dividing his weight by the accelleration. Remember, F=ma

580 = m*9.8

m = 59.18kg

Then multiply the mass by the new gravitational acceleration on Mars.

59.18*3.711 = 219.6N

The question is incomplete, the complete question is;

The compound magnesium phosphate has the chemical formula Mg3(PO4)2. In this compound, phosphorus and oxygen act together as one charged particle, which is connected to magnesium, the other charged particle. What does the 2 mean in the formula 5Mg3(PO4)2? A. There are two elements in magnesium phosphate. B. There are two molecules of magnesium phosphate. C. There are two magnesium ions in a molecule of magnesium phosphate. D. There are two phosphate ions in a molecule of magnesium phosphate.

Answer:

There are two phosphate ions in a molecule of magnesium phosphate.

Explanation:

The compound magnesium phosphate is an ionic compound. Ionic compounds always consists of two ions, a positive ion and a negative ion.

In this case, the positive ion is Mg^2+ while the negative ion is PO4^3-.

The subscript, 2 after the formula of the phosphate ion means that there are two phosphate ions in each formula unit of magnesium phosphate.

Answer:

C. amount of charge on the source charge.

Explanation:

Electric field lines can be defined as a graphical representation of the vector field or electric field.

Basically, it was first introduced by Michael Faraday and it is typically a curve drawn to the tangent of a point is in the direction of the net field acting on each point.

The number, or density, of field lines on a source charge indicate the amount of charge on the source charge. Therefore, the density of field lines on a source charge is directly proportional to quantity of charge on the source.

Answer:

The answer is B the products of photosynthesis are the reactants of cellular respiration

Answer: (a) Damping is when a wave starts oscillating less and less until it stops. Basically, the amplitude of the wave decreases until it reaches zero. (b) With more damping, the amplitude of the wave decreases more quickly and thus reaches zero faster than with less damping. (c) The amplitude of the wave can be changed by making larger motions with the end of the rope or blanket that I am shaking.

Answer: The total distance walked is about 59 meters more than the student’s displacement.

Explanation:

The student walked 58.57 meters more than compared to its total displacement from its starting point.

Distance is a measurement of how far apart two things or points are, either numerically or occasionally qualitatively. The distance can refer to a physical length in physics or an estimate based on other factors in common usage.

The term "displacement" refers to a shift in an object's position. It is a vector quantity with a magnitude and direction. The symbol for it is an arrow pointing from the initial location to the ending place. For instance, if an object shifts from location A to position B, its position changes. Displacement is the term used to describe this shift in an object's position.

According to the question :

A student walked 100 meters north and then walks 100 meters west then its displacement will be, according to the Pythagoras theorem

h² = p²+b²

h² = 100² + 100²

h² = 20,000

h = 141.42 meters

This means the total displacement is 141.42 meters, but the student has traveled 200 meters.

200 - 141.42 = 58.57 meters

Hence, the student walks 58.57 meters more than the total displacement.

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Answer:

works in a similar manner: anything above the origin is positive and below the origin is negative. ... a picture of your coordinate system at the start of every problem you do. ... trip, you figure that you went 60 miles in 1 hour, so you were traveling at a ... s m distance that travel to needed time traveled distance speed average.

Explanation:

Answer:

Explanation:

P = mv  

m = P/v

m = .25/3 = .08 Kg ... A

Explanation:

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this question seems faulty.

The new normal force is greater than \(F_n\) as per the given data. The correct option is 1.

Friction is a force that prevents two solid objects from rolling or sliding over one another.

Although frictional forces, such the traction required to walk without slipping, may be advantageous, they can provide a significant amount of resistance to motion.

The normal force that the surface normally applies to the crate is perpendicular to the surface and works to balance the crate's weight.

The crate moves to the right when a force F is applied to it at an angle to the horizontal, and the normal force is adjusted to keep the crate in touch with the surface.

The formula for the normal force is FN = mg + Fsin(θ), where m is the mass of the crate, g is the acceleration due to gravity, and θ is the angle between the force F and the horizontal.

When θ is doubled, sin(2θ) = 2sin(θ)cos(θ), so the new normal force becomes:

FN' = mg + Fsin(2θ) = mg + 2Fsin(θ)cos(θ)

Since sin(θ) and cos(θ) are both less than or equal to 1, the second term on the right-hand side of the equation is greater than or equal to the original term Fsin(θ).

Thus, the new normal force is greater than the original normal force, and the correct answer is 1.

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Your question seems incomplete, the probable complete question is:

A crate is on a horizontal frictionless surface. A force of magnitude F is exerted on the crate at an angle θ to the horizontal, as shown in the figure, causing the crate to slide to the right. The surface exerts a normal force of magnitude FN on the crate. While F is kept constant, the angle θ is now doubled but is still less than 90°. Assume the crate remains in contact with the surface. How does the new normal force exerted on the crate compare to FN ?

answer choices

The radioulnar joint is a synovial joint located at the elbow that connects the radius and the ulna, enabling rotational motion.

The radioulnar joint allows for pronation and supination. Pronation refers to the motion of rotating the forearm so that the palm faces downwards, while supination refers to the motion of rotating the forearm so that the palm faces upwards. The radioulnar joint allows the radius and ulna to move relative to each other, resulting in rotational motion.

When the forearm is pronated, the radius rotates over the ulna and crosses it, while the ulna remains stationary. When the forearm is supinated, the radius rotates back to its original position, and the two bones are parallel to each other.The radioulnar joint is important in many activities, including writing, typing, playing musical instruments, and sports like tennis and golf. Any damage to this joint can result in a loss of pronation and supination, making daily activities challenging.

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The mass of the cart (m) is 20 kg and the velocity (v) is 2.0 m/s. So, the kinetic energy of the cart at the end of the 6.0 m is 50 Joules.

Kinetic energy of the cart at the end of the 6.0 m.

The given mass of the cart, m = 20 kg

The initial velocity of the cart, v = 2.0 m/s

The applied force on the cart, F = 5.0 N

The distance covered in the direction of the force, d = 6.0 m

The work done on the cart by the applied force is given by W = F × d

Kinetic energy of the cart is given by K.E. = (1/2) × m × v²

Kinetic energy at the end of 6.0 m can be calculated as follows:

Work done by the force, W = F × d = 5.0 N × 6.0 m = 30 J

Initial kinetic energy of the cart = K.E. = (1/2) × m × v² = (1/2) × 20 kg × (2.0 m/s)² = 20 J

Therefore, the final kinetic energy of the cart at the end of the 6.0 m is K.E. = 20 J + 30 J = 50 J

Thus, the kinetic energy of the cart at the end of the 6.0 m is 50 J.

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Answer: 324.135 kJ

Explanation:

Given

Mass of dropping is \(m=2250\ kg\)

The initial height of dropping is \(h_1=16\ m\)

The final height of dropping \(h_2=1.3\ m\)

Gravitational potential energy is the function of height i.e.

\(\Rightarrow \text{G.E.}=mgh\)

Change in Gravitational Energy is

\(\Rightarrow \Delta \text{G.E.}=mg(h_1-h_2)=2250\times 9.8\times (16-1.3)\\\\\Rightarrow \Delta \text{G.E.}=3,24,135\ J\approx 324.135\ kJ\)

The primary distinction between gravitational and electric force is that the gravitational force is the force of attraction between two objects that have mass, whereas the electric force is the force of attraction or repulsion between two objects that have an electric charge.

The gravitational force is always attractive, while the electric force can be either repulsive or attractive. The gravitational force is a long-range force that follows an inverse-square law, which means that the force decreases as the distance between the two objects increases. Meanwhile, the electric force can be either attractive or repulsive, and it follows an inverse-square law too.

However, it's considerably stronger than the gravitational force.The gravitational force is always present between any two objects with mass, whereas the electric force can only be seen between charged particles. The gravitational force is much weaker than the electric force; the force that two charged particles produce can be thousands of times stronger than the gravitational force between the two objects.However, gravity has its own set of unique features, such as its ability to bend the path of light and to warp space-time itself.

Gravitational force is the most fundamental force that governs the behavior of the universe at large distances. It is a force that can only attract and can never repel. Therefore, the gravitational force is a vital force that helps to keep planets and stars in orbit.

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The force applied to the ball is 11 Newtons.

To solve this problem, we need to use Newton's second law of motion, which states that the force applied to an object is equal to its mass times its acceleration:

F = m * a

Here, we are given the acceleration of the soccer ball when it is kicked by a player. The acceleration is 22 m/s² forward. We are also given the mass of the ball, which is 0.5 kg.

To find the force applied to the ball, we simply need to plug these values into the equation:

F = m * a

F = 0.5 kg * 22 m/s²

F = 11 N

Therefore, the force applied to the ball is 11 Newtons.

Note that the unit of force is Newtons (N), which is the SI unit of force. The Newton is defined as the amount of force required to give a mass of 1 kilogram an acceleration of 1 meter per second squared. In this case, the force applied to the soccer ball is 11 Newtons, which means that it is enough force to give the ball a mass of 0.5 kg an acceleration of 22 m/s² forward.

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Answer:

2.5x10^4 J (scientific notation)

25,000 (Acellus)

Equation:

Q=mcΔT

where:

Q=heat

m = mass

c = specific heat

ΔT=change in temperature

Any rearranging?

Let's see.

No, we need heat.

So no rearranging.

Plug in the numbers and solve

It takes approximately 28,224 joules of heat to raise 0.0438 kg of aluminum from room temperature to its melting point.

To calculate the heat required to raise the temperature of aluminum from room temperature to its melting point, we need to use the specific heat capacity formula: Q = m × c × ΔT

where:

Q = heat (in joules)

m = mass of aluminum (in kilograms)

c = specific heat capacity of aluminum (in joules per kilogram per degree Celsius)

ΔT = change in temperature (in degrees Celsius)

Given:

Mass of aluminum (m) = 0.0438 kg

Specific heat capacity of aluminum (c) = 900 J/kg°C (approximate value for aluminum)

Change in temperature (ΔT) = melting point (660°C) - room temperature (20°C) = 640°C

Now, let's calculate the heat (Q):

Q = 0.0438 kg × 900 J/kg°C × 640°C

Q = 28,224 J (joules)

So, it takes approximately 28,224 joules of heat to raise 0.0438 kg of aluminum from room temperature to its melting point.

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Answer:

A physical property of matter is electric charge. It is caused by an imbalance in the number of protons and electrons in a material. Whether there are more protons than electrons in a substance, it is positively charged if there are more electrons than protons, it is negatively charged.

Explanation:

Answer:

The correct answer is - 200000 J

Explanation:

We use the formula of kinetic energy:

The formula to calculate kinetic energy is,

Here,

Ec =1/2 x  m x v^2

The mass of the roller coaster is,  m  =  1000  k g

The speed of the roller coaster is, v = 20.0 m/s

 Therefore,

Ec=1/2 x 1000kg x (20m/s)^2 = 200.000Joule

200,000J

The given statement "If the radioactivity of a material is not known, the half-life cannot be determined" is (b). false statement because half-life, in radioactivity, is the amount of time needed for half of a radioactive sample's atomic nuclei to decay.

Or, alternatively, the amount of time needed for a radioactive material's rate of disintegrations per second to decrease by half. Cobalt-60, a radioactive isotope used in radiotherapy, has a half-life of 5.26 years, for instance. As a result, after that time, a sample that contained 8 g of cobalt-60 at first would only have 4 g of cobalt-60 and would produce half as much radiation. Only 2 g of cobalt-60 would remain in the sample after an additional delay of 5.26 years.

However, neither the volume nor the mass of the initial sample are shown to decrease because when cobalt decays, unstable cobalt-60 nuclei turn into stable nickel-60 nuclei, which stay with the cobalt that hasn't yet broken down.

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activities you can do on a regular basis for physical education​?

If so

Answer:

The 1st reaction is synthesis and the 2nd reaction is a double displacement.

The car's kinetic energy at the bottom of the hill is approximately 127,400 J.

The potential energy the car has at the top of the hill due to its mass and height above the ground is given by the formula:

Ep = mgh

where m is the mass of the car (1300 kg), g is the acceleration due to gravity (9.8 m/s²), and h is the height of the hill (10 m).

Plugging in the values, we get:

Ep = (1300 kg) × (9.8 m/s²) × (10 m) = 127,400 J

At the bottom of the hill, all of the potential energy is converted to kinetic energy. Therefore, the car's kinetic energy at the bottom of the hill is also 127,400 J.

The formula for kinetic energy is:

Ek = ½mv²

where v is the velocity of the car. Since the car started from rest, its initial velocity was 0 m/s. Using conservation of energy, we can equate the potential energy at the top of the hill to the kinetic energy at the bottom of the hill:

Ep = Ek

mgh = ½mv²

Simplifying and solving for v, we get:

v = √(2gh)

Plugging in the values, we get:

v = √(2 × 9.8 m/s² × 10 m) ≈ 14 m/s

Finally, we can calculate the kinetic energy at the bottom of the hill:

Ek = ½mv² = ½ × (1300 kg) × (14 m/s)² ≈ 127,400 J

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c. The tissue has a negative charge, and the balloon has a positive charge.

Due to the opposing charges of both things, the tissue paper repels the balloon. In this instance, it is likely that the balloon has a positive charge whereas the tissue paper has a negative charge. While like charges repel one another, opposite charges attract.

The fact that the balloon is repelled by the tissue paper leads us to conclude that both items have opposing charges. The tissue paper has a negative charge, but the balloon is most likely to have a positive charge.

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The deductible level that would result in the lowest premium for automobile insurance is from  $250 or $500

For those who anticipate needing expensive medical care or continuous medical treatment, a plan without a deductible typically offers good coverage and is a wise decision.

In most circumstances, a plan's premium will be lower the larger its deductible. You save money on what you pay each month when you're willing to pay more up front when you need care.

The typical range for a comprehensive deductible suggested by insurance agents is between $100 and $500. It makes sense to have a smaller deductible for comprehensive claims because they often involve less damage than collision claims.

High-deductible health plans typically have cheaper premiums but need greater upfront payments before insurance will cover medical expenses. Meanwhile, higher premiums are typically associated with health insurance plans with lower deductibles since they provide more predictable expenses and frequently more robust coverage.

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Answer: the correct answer is Bryce Canyon National Park

Answer:

C. An article written by a scientist

Explanation:

Research-based original articles written by a scientist can act as a primary source of information. Textbooks, dictionaries and encyclopedias are generally classified as secondary sources and are rarely primary sources.

Answer:i One way to solve the quadratic equation x2  = 9 is to subtract 9 from both sides to get one side equal to 0: x2  – 9 = 0. The expression on the left can be factored:

Explanation:

A minimal power just at detector, we need must translate a perfect mirror to a right, To produce the smallest power at the detector, move the ideal mirror to a right by 86.2 nm; the minimum power was 0.225 mW.

Power Detector detects voltage and signals its presence via a relay input (galvanic insulated). In order to detect the presence or charging voltage on a UPS's input, Power Detector can, for example, be linked to a DI of a Poseidon2 3266 and Damocle2 MINI.

A radio wave (RF) detector is indeed a tool for finding RF waves in wired or wireless (on RF Cable) transmission media. These can be found as devices and modules and go by the names RF power detector or RF response detectors.

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The distance at which the electric field is 400 N/C is 32 meters from the charged particle.

Given, a distance of 16 m from a charged particle, the electric field has a magnitude of 100 N/C.

The electric field(E) produced by a charged particle at a distance r from it is given by;

E = kq/r²  Where,q is the charge of the particle,r is the distance from the particle,k is Coulomb's constant.

Electric field at a distance of 16m from a charged particle;

\(E_1\)= 100 N/C\(E_1\)= kq/r1² ----(1)

Electric field at a distance of x meters from a charged particle;

\(E_2\) = 400 N/C\(E_2\)= kq/x² ----(2)

Dividing equation 2 by equation 1;

\(E_2/E_1\) = (kq/x²)/(kq/r1²)

\(E_2/E_1\)= (r1/x)²

\(E_2\) = \(E_1\)*(x/r1)²400 = 100*(x/16)²(x/16)²

         = 400/100x/16 = ±2 x

        = 16(±2)x1 = 32m

The distance at which the electric field is 400 N/C is 32 meters from the charged particle.

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The temperature of surface of Sun =  5743.8 K

What is Stefan's Law ?

It states that the radiation emitted from area A of a black body at absolute temperature T is directly proportional to the fourth power of the temperature,

Or, P = σeAT⁴

Radius of sun = 7.00×10^8 m

Surface area of sphere, A = 4π*r²

σ = 5.67×10^-8

Power radiated by sun, P = 3.80*10^26 W

Power radiated by a body is given by, P = σeAT⁴

∴ T = [P/(σeA)]^(1/4)

T = [3.80×10^26/(5.67×10^-8×1×4×π×(7.00×10^8)^2)] ^ (1/4)

T = 5743.8 K

Therfore the temperature of surface of Sun =  5743.8 K

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