A ball with a mass of 0.605kg is initially at rest. It is struck by a second ball having a mass of 0.405kg , initially moving with a velocity of 0.255m/s toward the right along the x axis. After the collision, the 0.405kg ball has a velocity of 0.205m/s at an angle of 37.0? above the x axis in the first quadrant. Both balls move on a frictionless, horizontal surface.
1. What is the magnitude of the velocity of the 0.605kg ball after the collision?
2. What is the direction of the velocity of the 0.605kg ball after the collision?
3. What is the change in the total kinetic energy of the two balls as a result of the collision?

An object is 10 cm from the mirror, its height is 1 cm and the focal length is 5 cm. what is the image height? (indicate the object orientation by including the + or - sign with the answer.) hi = cm +1 -1 +10 -10

A3.9 g aluminum foil ball with a charge of +4.1×10−9 c is suspended on a string in a uniform horizontal e⃗ field. the string deviates to the right and makes an angle of 30∘ with the vertical. part a part complete what information about the e⃗ field can you determine for this situation? what information about the field can you determine for this situation? only the magnitude of e⃗ only the direction of e⃗ both the magnitude and the direction of e⃗ none of the above previous answers correct part b determine the magnitude of the electric field. express your answer with the appropriate units. e e = nothing nothing request answer part c determine the direction of the electric field. determine the direction of the electric field. to the right to the left away from you toward you

Ablock having mass m slides down an inclined plane. the force of friction between the block and the inclined plane is f, the block's weight is m g, and the normal force is n. (a) draw a free – body force diagram showing the forces acting on the block. (b) write down all relevant newton’s equations for a given situation.