From the edge of a rooftop, you toss a green ball upward with an initial velocity of 10 m/s and a blue ball downwards with the same initial speed. air resistance is negligible. when they reach the ground below
a. the green ball will be moving faster than the blue ball.
b. the blue ball will be moving faster than the green ball.
c. the two balls will have the same speed.
Answers: 2
Physics, 21.06.2019 16:10
The man fires an 80 g arrow so that it is moving at 80 m/s when it hits and embeds in a 8.0 kg block resting on ice. how far will the block slide on the ice before stopping? a 7.1 n friction force opposes its motion.
Answers: 3
Physics, 21.06.2019 18:10
After the near spacecraft passed mathilde, on several occasions rocket propellant was expelled to adjust the spacecraft's momentum in order to follow a path that would approach the asteroid eros, the final destination for the mission. after getting close to eros, further small adjustments made the momentum just right to give a circular orbit of radius 45 km (45 × 10^3 m) around the asteroid. so much propellant had been used that the final mass of the spacecraft while in circular orbit around eros was only 545 kg. the spacecraft took 1.04 days to make one complete circular orbit around eros. calculate what the mass of eros must be.
Answers: 1
Physics, 22.06.2019 15:30
What is the increase in density of a medium due to wave travel?
Answers: 2
From the edge of a rooftop, you toss a green ball upward with an initial velocity of 10 m/s and a bl...
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