A visible light emits light with a wavelength of 4.00x10^-7m.

Calculate the frequency of the violet light.

a) 7.50x10^4Hz

b) 6.30x10^24Hz

c) 7.50x10^1Hz

d) 6.30x10^-1Hz

How much potential energy does a 20-kg barrel have when it is in the truck whose floor is 5.0 m above the ground? P. E. = J

Two carts on a straight track collide head on. The first cart was moving at 3.6 m/s in the positive x direction and the second was moving at 2.4 m/s in the opposite direction.

A series of steps that allows someone to conduct an experiment are called a

Explqin how energy is different from work

If two lightbulbs are parallel to each other, they have the same brightness. If the same two lightbulbs are put in series with each other, they also have the same brightness but are dimmer than when they are in parallel. Explain why.

Why are the sedimentary layers at capitol reef tilted?

What do we call it when an object exerts force on another for a short period of time? * Momentum Work Impulse Friction

Why is flammability a chemical property?

Luke pulls a sled using a force of 65 N for a distance of 25 m across level ground. The rope Luke pulls forms an angle of 25° with the ground. About how much work does Luke do on the sled? 250 J 690 J 1,500 J 1,600 J

Intramolecular and intermolecular forces hold together which of the following? A. atoms within a molecule B. molecules within an object C. charged particles within a salt crystal D. the atoms within compounds E. all of the above