All categories

4 years ago

When less force is used but the amount of work done remains the same, how does distance change?

1 answer:

3 0

Work is the product of force and distance, or W=F*x. The work remains the same, but there is less force. There must be an increase in distance to maintain the stability of work, which is choice B

You might be interested in

Why does water wet the glass while mercury does not

Nezavi [6.7K]

Answer:

hhere is your answer this might help u..

Explanation:

this is because..

mercury forms convex meniscus... with object.. which make it not to wet any type of surfaces..

but...

water forms concave meniscus... which act opposite like mercury and wets the body...

and another reason is that water has adhesive properties...

thanks for question

4 0

4 years ago

Think about the sound waves and light waves that are transmitted when you use a computer, watch TV, or use your phone. How are t

serious [3.7K]

Answer:

Light and sound waves are different in the sense that:

Light can travel without a medium, and is a physical particle

Sound is a vibration in a medium

Light can be altered by a different medium

Same with sound

Explanation:

There's no answer list, but here are some answers.

8 0

3 years ago

A 3600-N Force causes a car to accelerate at a rate of 4m/s2. What is the mass of the car?

Mademuasel [1]

Answer:

14400 kg

Explanation:

According to Newton's second law of motion, F = ma

F = 3600 N

a = 4m/s2

3600 = m/4

3600*4 = m

m = 14400 kg

Therefore the mass of the car is 14400 kg

Hope u understand

Please mark as brainliest

3 0

3 years ago

A billiard ball is moving in the x-direction at 30.0 cm/s and strikes another billiard ball moving in the y-direction at 40.0 cm

ipn [44]

To solve this problem it is necessary to apply the trigonometric ratios of the given velocity components.

If we make a graph of the velocity vectors in their respective velocities according to the given description we will have something similar to the attached graph.

The angle could be obtained from the components of the opposite leg and the adjacent leg so that

$tan\theta = \frac{x}{y}$

$\theta = tan^{-1}(\frac{x}{y})$

The opposite leg value (y) is 40cm / s and the adjacent leg (x) is 30cm / s

$\theta = tan^{-1}(\frac{30}{40})$

$\theta = 36.87\°$

Therefore the final direction that does the first ball is 36.87°

6 0

3 years ago

When a man stands on a bathroom scale here on Earth, it reads 640 N . Assume each planet to be a perfect sphere with the followi

noname [10]

Answer:

242.19702 N

578.46718 N

681.02785 N

Explanation:

M = Mass of the corresponding planet

r = Radius of the corresponding planet

g = Acceleration due to gravity = 9.81 m/s²

G = Gravitational constant = 6.67 × 10⁻¹¹ m³/kgs²

Mass of person

$m=\frac{W}{g}\\\Rightarrow m=\frac{640}{9.81}=65.23955\ kg$

Mass is the property of an object, it is constant irrespective of the forces acting on it so the mass of the person on each planet would be the same.

Gravitational force on Mars

$F=\frac{GMm}{r^2}\\\Rightarrow F=\frac{6.67\times 10^{-11}\times 6.419\times 10^{23}\times 65.23955}{(3.396\times 10^{6})^2}\\\Rightarrow F=242.19702\ N$

Magnitude of the gravitational force Mars would exert on the man if he stood on its surface is 242.19702 N

Gravitational force on Venus

$F=\frac{GMm}{r^2}\\\Rightarrow F=\frac{6.67\times 10^{-11}\times 4.869\times 10^{24}\times 65.23955}{(6.052\times 10^{6})^2}\\\Rightarrow F=578.46718\ N$

Magnitude of the gravitational force Venus would exert on the man if he stood on its surface is 578.46718 N

Gravitational force on Saturn

$F=\frac{GMm}{r^2}\\\Rightarrow F=\frac{6.67\times 10^{-11}\times 5.685\times 10^{26}\times 65.23955}{(6.027\times 10^{7})^2}\\\Rightarrow F=681.02785\ N$

Magnitude of the gravitational force Saturn would exert on the man if he stood on its surface is 681.02785 N

6 0

4 years ago