An internal explosion breaks an object, initially at rest, into two pieces, one of which has 2.0 times the mass of the other. Part A If 6500 J is released in the explosion, how much kinetic energy does each piece acquire? Express your answers using two significant figures separated by a comma. ? AKighter. AKneavier = Submit Request Answer

A spring with relaxed length 0.30 m and spring constant 1.8 N/m rests horizontally on a frictionless table and is anchored frmly to a wall on one side. You press a 400 g block into the other side until the spring length is 0.16 m and then let go.   a.) What will the momentum of the block be when it departs from the spring? (Assume contact ceases when the spring is relaxed.)   b.) If the table were no longer frictionless and the block-table interface had a kinetic coeffcient of friction of 0.1 what then would the momentum of the block be when it departs from the spring?

A-C thank you!

Problem 9.34 A0.060-kg tennis ball, moving with a speed of 5.8 m/s , has a head-on collision with a 9.5x10-2-kg ball initially moving in the same direction at a speed of 2.7 m/s. Part A Assuming a perfectly elastic collision, determine the speed of each ball after the collision. Enter your answers numerically separated by a comma. Express your answers using two significant figures. Hνα ΑΣφ ? m/s 'tennis ball Vhall= Submit Previous Answers Request Answer X Incorrect; Try Again; 2 attempts remaining Part B Determine the direction of tennis ball after the collision. The tennis ball moves in the direction of its initial motion. The tennis ball moves in opposite direction. Subm Previous Answers v Correct Part C МacВook Pro