Please select BEST answer each question has ONLY one (1) answer... Please rememb

Question

Please select BEST answer each question has ONLY one (1) answer...
Please remember CHEGG membership only allows 20 questions per month please answer to the best of your knowledge or allow another tutor to answer 1.6: Consider a completely elastic head-on collision between two particles that have the same mass and the same speed. What are the velocities after the collision'? Both are zero. b) The magnitudes of the velocities are the same, but the directions are reversed d) One of the particles continues with the same velocity, and the other reverses c) One of the particles continues with the same velocity, and the other comes to rest direction at twice the speed. e) More information is required to determine the final velocities 1.7: Bob and Lily are riding on a merry-go-round. Bob rides on a horse toward the outer edge of a circular platform and Lily rides on a horse toward the center of the eircular platform. When the merry-go-round is rotating at a constant angular speed o, Bob's speed exactly half as much as Lily's. larger than Lily's. c) smaller than Lily's d) the same as Lily's. c) exactly twice as much as Lily's. 1.8: Compare the weight of a mountain climber when she is at the bottom of a mountain with her weight when she is at the top of the mountain. In which case is her weight larger? a) She weighs more at the bottom. b) She weighs more at the top. c) Both are the same. d) She weighs twice as much at the top e) She weighs four times as much at the top. 1.9: Two satellites having equal masses are in circular orbits around Earth. Satellite A has a smaller orbital radius than satellite B. Which statement is true? a) Satellite A has more kinetic energy, less potential energy, and less mechanical energy (kinetic energy plus potential energy) than satellite B. b) Satellite A has less kinetic energy, less potential energy, and less mechanical c) d) Satellite A and satellite B have the same amount of mechanical energy energy than satellite B. Satellite A has more kinetic energy, more potential energy, and less mechanical energy than satellite B. Satellite A and satellite B have the same amount of kinetic energy and no potential energy because they are in motion. e) 1.10: Two wooden boxes of equal mass but different density are held beneath the surface of a large container of water. Box A has smaller average density than box B. When the boxes are released, they accelerate upward to the surface. Which box has the greater acceleration? a) Box A b) Box B

Explanation / Answer

(1.6) During elastic collision
velocity of approach = Velocity of seperation
since the mass and initial velocity are same therefore the velocity will interchange and the direction will be reversed.
Therefore the correct option is B.
(1.7) We know that V = wr
hence the one with larger radius has larger velocity therefore bob will have more velocity.
hence the correct option is b.
(1.8) As we move above the sea level the acceleration due to gravity keep on decreasing therefore the
weight on the top of hill will be less as compare to the bottom.
therefore the correct option is a.
(1.9) We know more the distance larger the potential energy and smaller the kinetic energy.
hence the satellite A has more kinetic energy , less potential energy and less mechanical energy as compare to B.
Therefore the correct option is a.
(1.10) Since the mass of both box is same therefor the box which have less density will have more volume therfore the volume of the box A will be more.
If the volume is more than the buoyant force will be more on box A , hence the acceleration of the box a will be more.
Therefore the correct option will be a.

Related Questions

Navigate

• Browse (All)
• Browse P
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.