Physics, 03.03.2021 17:40, brittanydeanlen
A ball has a mass of 0.046kg.
(i) Calculate the change in gravitational potential energy when the ball is lifted through a vertical height of 2.05m.
Use the equation: /\GPE = m × g × /\h.
ii)The ball is released. Calculate the kinetic energy of the ball when the speed of the ball is 3.5m/s.
Answers: 2
Physics, 21.06.2019 19:20, Obeilskzexal
Aferris wheel is a vertical, circular amusement ride with radius 9 m. riders sit on seats that swivel to remain horizontal. the ferris wheel rotates at a constant rate, going around once in 9 s. consider a rider whose mass is 56 kg. at the bottom of the ride, what is the perpendicular component of the rate of change of the rider's momentum? at the bottom of the ride, what is the vector force exerted by the seat on the rider?
Answers: 1
Physics, 22.06.2019 18:30, yuvraj2298
Ahot-air balloon takes off from the ground traveling vertically with a constant upward acceleration of magnitude g/4. after time interval δt, a crew member releases a ballast sandbag from the basket attached to the balloon. how many seconds does it take the sandbag to reach the ground? (express your answer in terms of δt)
Answers: 2
A ball has a mass of 0.046kg.
(i) Calculate the change in gravitational potential energy when the b...
Physics, 24.02.2020 17:31