You and a friend stand still on an escalator. A stationary observer sees you moving at a speed of 0.35 m/s. From your frame of reference, what is the speed of your friend?

Which of the following quantities is a velocity? A. 25 m/s B. 3 g/L in weight C. 15 m/s2 D. 10 km/hr eastward

2. A sled with a boy on it has a combined mass of m = 75 kg. As they slide across a horizontal surface of an ice- covered lake, they come to rest in a distance of s = 25 m. If the coefficient of friction between the sled and the ice is u = 0.

If a man has a mass of 83 kilograms on Earth what will the force of gravity on his body be in the moon

For each of the following news stories, determine whether the objects speed or velocity is given: the world record for the hundred-meters dash is about 10m/s; the wind today is 30 km/h from the north-west;

Which of the following variables do you need to know in order to calculate the partial pressure of a gas? (We are going to ignore water vapor here.) Check all that apply. a. the volume of the container that the gas is in b.

Which electromagnetic waves have a higher frequency than visible light

Calculate the speed for a car that went a distance of 125 miles in 2 hours time

A small 25 kilogram canoe is floating downriver at a speed of 4 m/s. What is the canoe's kinetic energy?

A car traveling on a flat (unbanked), circular track accelerates uniformly from rest with a tangential acceleration of 1.85 m/s2. The car makes it one quarter of the way around the circle before it skids off the track.

A train travels 120 km in 2 hours and 30 minutes what is the average speed