1. ball a, with a mass of 20 kilograms, is moving to the right at 20 meters per second. at what velocity should ball b, with a mass of 40 kilograms, move so they both come to a standstill upon collision? identify each mass, velocity, and unknown. show your work, including units, and indicate the direction of ball b in your answer.
2. ball c, with a mass of 30 kilograms, is moving to the left at 10 meters per second. at what velocity should ball d, with a mass of 10 kilograms, move to the right and collide with ball c so that ball d rebounds to the left with a velocity of 30 meters per second and ball c rebounds to the right with a velocity of 10 meters per second? assume the collision to be perfectly elastic. identify each mass, velocity, and unknown. show your work, including units, and indicate the direction of ball d in your answer.
3. ball e, with a mass of 10 kilograms, is moving to the right at 20 meters per second. ball f is moving to the left at 20 meters per second. upon collision, ball f comes to a standstill and ball e moves to the left at twice its original speed. what is the mass of ball f? identify each mass, velocity, and unknown. show your work, including units.
(show your work on all of them, )
Answers: 3
Physics, 21.06.2019 19:30, yolinda123429
Molten iron fills a mould, which has a volume of 200 cm cubed. calculate the volume when the iron cools and solidifies.
Answers: 1
Physics, 22.06.2019 03:30, ashah1260
Starting with only the balmer series light (visible light), how could we ensure that the solar panels generate a current that mark can use for his power station? a)by gradually increasing the brightness (amount) of light that we shine on it. b)by gradually increasing the frequency of the light we shine on it. c)by gradually increasing the wavelength of the light that we shine on it.
Answers: 3
Physics, 22.06.2019 19:00, Drea1385
The particle p starts from rest at point a at time t = 0 and changes its speed thereafter at a constant rate of 2.8g as it follows the horizontal path shown. determine the magnitude and direction of its total acceleration (a) just before point b, (b) just after point b, and (c) as it passes point c. state your directions relative to the x-axis shown (ccw positive) and choose the angle with the smallest magnitude.
Answers: 1
1. ball a, with a mass of 20 kilograms, is moving to the right at 20 meters per second. at what velo...
English, 16.04.2020 20:33
Mathematics, 16.04.2020 20:33
Physics, 16.04.2020 20:33