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What is the acceleration of a ball traveling horizontally with an initial velocity of 20 meters/second and, 2.0 seconds later, a velocity of 30 meters/second? A. 1.6 m/s^2 B. 3.0 m/s^2 C. 3.4 m/s^2 D. 5.0 m/s^2
Dan is gliding on his skateboard at 2.0 m/s. He suddenly jumps backward off the skateboard, kicking the skateboard forward at 8.0 m/s. How fast is Dan going as his feet hit the ground? Dan's mass is 60 kg and the skateboard's mass is 5.0 kg.
When two tuning forks of 128 Hz and 149 Hz, respectively, are sounded simultaneously, how various beats per second are heard.
What is an angular speed about the center of mass
After a tornado, a 0.55-g straw was found embedded 2.8 cm into the trunk of a tree. If the average force exerted on the straw by the tree was 70 N, what was speed of the straw when it hit the tree .
assume that for the couple in, you were told that the girl's mass was two-thirds that of the boy. The boy has a velocity of v = +0.61 m/s. What would be the girl's velocity in this case.
What is modify in frequency ff - fi
Two packages at UPS start sliding down the ramp. Package A has a mass of 6.50 and a coefficient of kinetic friction of 0.19. Package B has a mass of 9.50 and the coefficient of kinetic friction of 0.140. How long does it take package A to reach th..
Find out the object position p for the image to be erect and 7 times the size of the object. Focal length is 46 cm.
A boy on board a cruise ship drops a 30.0 g marble into the ocean. If the resistive force proportionality constant is 0.500 kg/s, what is the terminal speed of the marble in m/s?
estimate the speed of the car just before braking. how much time passes before the brick lands on the ground..
A car travelling 80 km/h slows down at a constant 0.50 m/s^2 just by "letting up on the gas." Compute the distance the car coasts before it stops in meters.
Ice at -14.9 °C and steam at 115 °C are brought together at atmospheric pressure in a perfectly insulated container. After thermal equilibrium is reached, the liquid phase at 52.0 °C is present.
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