Physics, 20.07.2019 12:20 lizdeleon248
An autographed baseball rolls off of a 0.76 m high desk and strikes the floor 0.61 m away from the desk. how fast was it rolling on the desk before it fell off? the acceleration of gravity is 9.81 m/s 2 . answer in units of m/s.
Answers: 1
Physics, 22.06.2019 04:20
The free body diagram shows a box being pulled to the left up a 25-degree incline. the magnitude of the normal force is
Answers: 1
Physics, 22.06.2019 14:00
Awater balloon launcher uses an elastic band with a spring constant of 115 n/m to use thee launcher you stretch thee band back with a balloon n it the water balloons have a mass of 1.3 kg a) if you stretch the band by 0.8 m, what elastic force will the band exert? b) with the band stretched 0.8 m, how much elastic potential energy is stored in the spring? c) if you release the band, it pushes forward. what is the kinetic energy of the balloon when it reaches the natural length of the band? d) what is the speed of the balloon when it reaches the natural length of the band?
Answers: 1
Physics, 22.06.2019 15:00
Consider a uniformly charged ring in the xy plane, centered at the origin. the ring has radius a and positive charge qdistributed evenly along its circumference. a)what is the direction of the electric field at any point on the z axis? . b)what is the magnitude of the electric field along the positive z axis? use k in your answer, where k=14ÏÏ”0. d)the ball will oscillate along the z axis between z=d and z=âd in simple harmonic motion. what will be the angular frequency Ï of these oscillations? use the approximation dâȘa to simplify your calculation; that is, assume that d2+a2âa2. express your answer in terms of given charges, dimensions, and constants
Answers: 2
Physics, 22.06.2019 18:20
An object dropped from cliff falls with a constant acceleration of 10 metre per second square find its speed of two seconds after it was dropped
Answers: 2
An autographed baseball rolls off of a 0.76 m high desk and strikes the floor 0.61 m away from the d...
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