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At an instant when a soccer ball is in contact by the foot of a player kicking it, the horizontal or x component of the ball's acceleration is 730 m/s2 and the vertical or y component of its acceleration is 1050 m/s2. The ball's mass is 0.41 kg. What is the magnitude of the net force acting on the soccer ball at this instant?
A horizontal 810-N merry-go-round of radius 1.30 m is started from rest by a constant horizontal force of 45 N applied tangentially to the merry-go-round
the pistons in an internal combustion engine undergo a motion that is approximately simple harmonic. if the amplitude
Two point charges, Q_1 = -6.1 mu C and Q_2 = 2.0 mu C, are situated between two oppositely charged parallel plates. The two charges are separated by a distance of x = 0.30 m. suppose that the electric field produced by the charged plates is unifor..
Suppose the act of throwing the tool takes the austronaut 0.7 seconds, that is she applied a force to the tool before it leaves her hand. What velocity toward the space shuttle will that have given her? And if she was 12m away from the shuttle to sta..
A 12.0 g rifle bullet is fired with a speed of 740 m/s into a ballistic pendulum with a mass of 8.00 kg, suspended from a light and long cord. Compute the max height through which the block would rise
a 7.00 kg ball falls from a 2.00m shelf. Just as it hits the floor, what is its kinetic energy when it hits the floor
A mirror with a focal length of -10 cm is used to image an object15 cm away. What is the image distance and what type of imagewould this mirror produce. Draw a ray diagram as part of your answer.
A 3.00-m-long, 400 kg steel beam extends horizontally from the point where it has been bolted to framework of a new building under construction. A 74 kg construction worker stands at the far end of the beam.What is the magnitude of the torque abo..
One hundred turns of (insulated) copper wire are wrapped arounda wooden cylindrical core of cross-sectional area 8.05 x10-3 m2. how much charge flows through a point in the circuit during the change
A baseball (m = 138 g) approaches a bat horizontally at a speed of 38.6 m/s (86 mi/h) and is hit straight back at a speed of 45.5 m/s (102 mi/h). what is the average force exerted on the ball by the bat
Two particles with masses 2m and 6m are moving toward each other along the x axis with the same initial speeds vi. Find the final speeds of the particles
A proton is accelerated from rest across a potential difference of 4V. What is the power delivered to the proton by the magnetic field
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