Why are arrows of varying lengths used to represent forces?

How much work does a mother do if she lifts each of her twin babies upward 1.0? Each baby weights 90N

A 40.0 kg ballet dancer stands on her toes during a performance with 25.0 cm2 in contact with the floor. What is the pressure exerted by the floor over the area of contact if the dancer is stationary

When the air under the envelope is heated, the balloon lifts. Which of the following statements is true?

Which of the following is correct definition of electrical energy

The position of a 2.2 kg mass is given by x = (2t3â5t2) m, where t is in seconds.

A container of gas is at a pressure of 3.7 * 105 Pa How much work is done by the gas if its volume expands by 1.6 m3?

A person carries a mass of 10 kg and walks along the + x-axis for a distance of 100m with a constant velocity of 2 m/s. What is the work done by this person? A) 20 J B) None of the other choices is correct. C) 0 J D) 200 J

Uranus has more than 14 times as much mass as earth, yet the gravitational force is less. how can that be?

What is velocity-time graph?

Whitch tool could be used to mesure the mass of. a package being mailed