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A 120g ball moving at 0.50 m/s in the + x direction is subject to a 0.25 N force in the - y direction for 2.5 s.
Find the change in magnitude of the balls momentum.
Find the balls final speed.
Find the angle between the balls final velocity and the positive x direction.
Coin is placed 14.0 from the axis of the rotating turntable of variable speed. When the speed of the turntable is slowly increased, the coin remains fixed on turntable until a rate of 40.0 (revolutions per minute) is reached, at that point the coin s..
A novice skier, starting from rest, slides down a frictionless 34° incline whose vertical height is 128 m. How fast is she going when she reaches the bottom.
A golfer hits a shot to a green that is elevated 3 m above the point where the ball is struck, find the speed of the ball just before it lands
A box is pushed across the floor, slide with a constant velocity, and is opposed by a friction force of 25N. What is the magnitude of the force? Choose the correct answer. A.Less than 25N B.Zero C.Greater than 25N D.25n
A person exerts a horizontal force of F = 190 N in the test apparatus. (h of arm = 0.34 m. And h of flexor muscle= .054 m) Find the horizontal force M that his flexor muscle exerts on his fore arm.
Illustrate what is the frictional force acting on the disk? The disk will slide off the turntable if it is located at a radius larger than 16 cm from the axis of rotation. What is the coefficient of static friction?
The period of the orbit is 2.1 hours. The radius of the planet is 4.50 × 106 m. Illustrate what would be the true weight of the satellite if it were at rest on the planet’s surface?
At t = 5.0 seconds, the cheetah is standing still, having knocked over the gazelle. Illustrate what is the average acceleration of the cheetah from t = 0 to t = 5.0 seconds?
A child in danger of drowning in a river is carried downstream by a current that flows uniformly with a velocity of 2.0 meters per second.
What is average kinetic energy of each helium atom
Express your answers using two significant figures. Enter the x and y coordinates of the charge separated by a comma.
Calculate the total cost ($/kWh) of electricity delivered to the grid including fuel cost and debt charge with O&M of 5% added to the total.
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