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Q. A tennis player receives a volley with the ball (0.060 kg) travelling horizontally at 51m/s and returns the ball so that it travels horizontally at 42.00 m/s in the opposite direction. What is the work done on tennis ball?
Q. A football player runs the pattern by the three displacement vectors, , and . The magnitudes of these vectors are A = 4.00 m, B = 18.0 m, and C = 16.0 m. Using the component method, find out the (1) magnitude and (2) direction of the resultant vector. Take to be a positive angle.
What is the least thickness of a soap bubble film (n = 1.38) on which light of wave length 610nm shines, assuming one observes constructive interference of the reflected light.
select the quantity that has changed(velocity or speed) for a car that travels north at 88 km/h and then turns east while continuing to move at 88 km/h. define your answer.
A civil engineer wishes to plan a curved exit ramp for a highway in a way that a car will not have to rely on friction to round the curve without skidding. In the other words, a car moving at the designated speed can negotiate the curve even while th..
Find out the resulting values of the processional rate
Two long parallel wires each carry a current of 5. A directed to the east. The two wires are separated by 8 cm. What is the magnitude of the magnetic field at a point that is 5.0 cm from each of the wires.
hear the sound of it hitting ground at the foot of the cliff. Ignoring air resistance, how high is the cliff if the speed of sound is 330 {rm m/s}.
A ski gondola is connected to the top of a hill by a steel cable of length 680 m and diameter 1.5cm. As gondola comes to the end of its run, it bumps into the terminal and sends a wave pulse along cable. It is observed that it took 14 s for the p..
A 3.5 m long, 310 kg steel beam extends horizontally from the point where it has been bolted to the framework of a new building under construction. A 70 kg construction worker stands at the far end of the beam.
Suppose a patient having an MRI is immersed in a 3.0 T field along the axis of his body. He then quickly tips his head to the side, toward his right shoulder, tipping his head by 30 degrees in the rather short time of 0.15 s.
At what time does the bolt hit the top of the still-decending elevator.
Two children tug on a toy of mass 2.0 kg. Costa pulls with a force of 10.0N [W 30degrees S]. The toy slides with an acceleration of 2.5 m/s^2 in the direction of the net force.
When the electric power was turned off, the electric motor originally running at 1800 rpm comes to rest in 15.0 s. Find out the angular acceleration, the angular velocity at the end of 5.0 s, and the total angle turned through in 15.0 s.
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