What is the momentum of a 2 kg shopping cart if it's moving at a speed of 5 m/s

A red racecar accelrates at a constant rate of 5 m/s2. How much time does it take to increase its speed from 50 m/s to 60 m/s? A. 17 s B. 0.058 s C. 0.25 s D. 2.0 s

A heat pump absorbs heat from the cold outdoors at 3°c and supplies heat to a house at 20°c at a rate of 30,000 kj/h. if the power consumed by the heat pump is 3 kw, the coefficient of performance of the heat pump is

Two children fight over a 200 g stuffed bear. the 25 kg boy pulls to the right with a 15 n force and the 20 kg girl pulls to the left with a 17 n force. ignore all other forces on the bear (such as its weight).

A giant squid is accelerating through the ocean at 0.5 m/s2. If the mass of the squid is 800 kg, what is the magnitude of the net force? A. 1600 N B. 80 N C. 800 N D. 400 N

If one knows only the constant resultant force acting on an object and the time during which this force acts, one can determine the 1. mass of the object. 2. change in momentum of the object. 3. acceleration of the object. 4.

Five forces are exerted on a box as follows: 10 N south 20 N north 50 N east 35 N west 15 N west. What is the resultant force?

A 1 kg particle moves upward from the origin to (23) m. Wit is work done by the force of gravity which is in - y direction s B. 19,6 D. 29.4) A.-19.6 J C. - 29.4 J

Using - 10 m/s2 for acceleration due to gravity, what would be the total displacement of the object if it took 8 seconds before hitting the water?

What will most likely happen if a light wave moves through a solid?

Ben franklin showed that 1 teaspoon of oil would cover about 0.50 acre of still water. if you know that 1.0 x 104m2 = 2.47 acres, and that there are 5.0 cm3 in a teaspoon, what is the thickness (in cm) of a later of oil?