subject
Physics, 14.01.2020 00:31 kragland4752

Aboy reaches out of a window and tosses a ball straight up with a speed of 10 m/s. the ball is 20 m above the ground as he releases it. use conversation of energy to find

part a

the ball's maximum height above the ground.
express your answer using two significant figures.

hmax = m
part b

the ball's speed as it passes the window on its way down.
express your answer using two significant figures.

vwindow = m/s
part c

the speed of impact on the ground.
express your answer using two significant figures.

vimpact = m/s

ansver
Answers: 1

Another question on Physics

question
Physics, 21.06.2019 15:30
Which would not reduce the amount of green house gasses in the air
Answers: 1
question
Physics, 22.06.2019 17:10
It's a snowy day and you're pulling a friend along a level road on a sled. you've both been taking physics, so she asks what you think the coefficient of friction between the sled and the snow is. you've been walking at a steady 1.5m/s, and the rope pulls up on the sled at a 32 ∘ angle. you estimate that the mass of the sled, with your friend on it, is 65 kg and that you're pulling with a force of 80 n .
Answers: 1
question
Physics, 22.06.2019 19:30
How many electrons in an atom could have these sets of quantum numbers? =3n=3 electronselectrons =4,ℓ=2n=4,ℓ=2 electronselectrons =6,ℓ=ℓ=−1n=6,ℓ=2,mℓ=−1
Answers: 3
question
Physics, 22.06.2019 22:30
Use the illustration to describe how the electromagnetic spectrum changes as its frequency moves from radio waves to higher energy gamma waves in terms of wavelength and amplitude.
Answers: 1
You know the right answer?
Aboy reaches out of a window and tosses a ball straight up with a speed of 10 m/s. the ball is 20 m...
Questions
question
Mathematics, 01.04.2020 01:36