subject
Physics, 14.01.2020 13:31 victoriakraus6599

amy has a mass of 30 kg, and she is riding a skateboard traveling 5 m/s. what is her momentum?

a. 30 kg*m/s
b. 150 kg*m/s
c. 5 kg*m/s
d. 6 kg*m/s

when a bat hits a ball, the impulse is

a. the change in velocity multiplied by the force.
b. the mass multiplied by the acceleration.
c. the force multiplied by the time the objects are in contact
d. the mass multiplied by the force

a bowling ball has a mass of 6 kg. what happens to its momentum when it's speed increases from 2 m/s to 4 m/s

a. the initial momentum is 12 kg*m/s, and the final momentum is 24 kg*m/s.

b. the initial momentum is 12 kg*m/s, and the final momentum is 3 kg*m/s

c. the initial momentum is 6 kg*m/s, and the final momentum is 3kg*m/s

d. the initial momentum is 6 kg*n/a, and the final momentum is 12 kg*m/s

a baseball is traveling (+20 m/s) and is hit by a bat. it leaves the bat traveling (-30 m/s). what is the change in the velocity? remember that direction is what makes velocity different than speed.

a. 30 m/s
b. 50 m/s
c. 10 m/s
d. 20 m/s

a basketball has a mass of 1 kg and is traveling 15 m/s. how fast would a 5kg bowling ball have to travel to have the same momentum?

a. 3 m/s
b. 15 m/s
c. 1 m/s
d. 5 m/s

ansver
Answers: 3

Another question on Physics

question
Physics, 22.06.2019 02:30
Agas contained within a piston-cylinder assembly undergoes three processes in series: process 12: compression with pv= constant from 1 bar and 1 liter to 4 bar. process 23: constant pressure expansion to 1 liter. process 31: constant volume calculate the pressure and volume at each state, and sketch the processes on a p-vdiagram labeled with pressure and volume values at each numbered stat
Answers: 2
question
Physics, 22.06.2019 10:50
The temperature at a point (x, y) is t(x, y), measured in degrees celsius. a bug crawls so that its position after t seconds is given by x = 6 + t , y = 8 + 1 3 t, where x and y are measured in centimeters. the temperature function satisfies tx(3, 9) = 5 and ty(3, 9) = 4. how fast is the temperature rising on the bug's path after 3 seconds? (round your answer to two decimal places.)
Answers: 3
question
Physics, 22.06.2019 12:00
Infrared radiation has wavelengths that are shorter than visible light is part of the visible light spectrum has wavelengths that are longer than visible light has the same wavelengths as ultraviolet radiation
Answers: 1
question
Physics, 22.06.2019 14:40
During the experiment if you could triple the breakaway magnetic force with all other quantities left unchanged, what is the new value for the critical velocity if it was v0 (initial velocity), initially? (b) now if you halved the radius with all other quantities left unchanged, what is the new critical velocity if it was v0 (initial velocity), initially? (c) if during the experiment, critical velocity quadrupled with all other quantities left unchanged, what is the new breakaway force if its magnitude was initially f0,?
Answers: 1
You know the right answer?
amy has a mass of 30 kg, and she is riding a skateboard traveling 5 m/s. what is her momentum?
Questions
question
Mathematics, 23.10.2019 00:00