How much force would it take to push another, larger friend who has a mass of 70 kg to accelerate at the same rate of 4 m/s2

Which particles can emitted from a metal surface when light strikes the surface?

Interia describes which of the following? How difficult it is to change an objects motion. How large an object is How fast an object is moving How long an object is

If a puddle of water is frozen, do particles in the ice of kinetic energy?

You are operating a boat with a power ventilation system. you have just fueled this boat. how long should you let the ventilation system run before starting the engine?

What are the three things a chloroplast needs in order to complete photosynthesis?

Suppose a person whose mass is m is being held up against the wall with a constant tangential velocity v greater than the minimum necessary. Find the magnitude of the frictional force between the person and the wall

A ball is being rolled by a normal push of 1000N. it is opposed by friction which has a force of 0.3kN and air resistance which has a force of 23N. Calculate the resultant force.

Consider a Young's two-slit experiment in which the wavelength of light is 37% smaller than the distance between the slits.

Which of the following situations would produce an average velocity of zero? A) a round-trip to school and back B) a horse galloping in a field C) the criss-crossing path of a flying bug D) a trip, first to the moon, then onto Mars

A 111.6 g sample of iron was heated from 0°C to 20°C. It absorbed 1004 J of energy. What is the specific heat capacity of iron?