How does a concave lens differ from a convex lens?

A 0.299 kg mass slides on a frictionless floor with a speed of 1.44 m/s. The mass strikes and compresses a spring with a force constant of 44.9 N/m. How far does the mass travel after contacting the spring before it comes to rest?

An elementary particle of mass m completely absorbs a photon, after which its mass is 1.01m. (a) what was the energy of the incoming photon? (b) why is that energy greater than 0.01mc2?

2. If you exert a force of 10.0 N to lift a box a distance of 0.9 m, how much work have you done? 0.1 J 9.0 J 10.9 J 90.0 J 3. The power of a machine measures its rate of doing work. its strength. the force it produces. the work it does. 4.

A particle moves along the x-axis so that at time t its position is given by s (t) = (t + 1) (t - 3) 3, t > 0. For what values of t is the velocity of the particle increasing? a. 0 <t 1c. t> 0d. The velocity is never decreasing.

Explain why liquids solidify when they are cooled.

Which vocabulary term is survival of the fittest

An object weighs 32 newtons. What is its mass if a gravitometer indicates that g = 8.25 m/s2?

At what stage of a reaction do atoms have the highest energy? a. reactant stage b. product stage c. transition state stage d. The stage of highest energy depends on the atom.

A moon with a mass of 6.0 x 10 kg orbits about a planet with a mass of 5.0x 10^24 kg. They are 4.0 x 10^8 meters apart What is the gravitational force between them? The answer is 1.

What is the expression of the chemical composition of a compound?