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A 30 g steel ball bounces elastically on a steel plate, always returning to the same maximum height h = 14.2 m.
a) What is the magnitude of the total momentum the ball transfers to the plate at each bounce?
b) What is the time interval between bounces?
c) Averaged over a long time interval, what is the magnitude of the rate at which momentum is transferred to the plate?
d) What is the magnitude of the average force exerted by the ball on the plate?
e) What is the weight of the ball?
Although there are a lot of ways to detect planets, can someone further expand on the techniques and methods used to determine the composition of planets detected outside the solar system ?
Gracie slides down a frictionless slide of length L that makes an angle (theta) with the ground. (A.) Gracie starts out at rest at the top of the slide.
A therapist examines the range of motion of an thlete's knee joint during her rehabilitation from a knee injury, What was the angular displacement of the leg from full extension to full flexion
Compute the x-coordinate of the center of mass XCM. Suppose that the mass of the rod is small enough to be ignored in your calculation. Your answers must be accurate to within 0.1 cm.
A horse walks in a 24 ft diameter circle, making 144 trips around the circle in one hour. Using the currently accepted value of 746 watts for 1 horsepower, calculate the force in pounds with which the horse must have been pulling.
The driver of a car slams on the brakes when he sees a tree blocking the road. The car slows uniformly with acceleration of -5.20 m/s2 for 4.05 s, making straight skid marks 61.0 m long, all the way to the tree. With what speed does the car then s..
When a battery is connected to a 145?? resistor, the current is 3.27A. Find the internal resistance of the battery and the emf supplied by the battery
Ultrasound with a frequency of 4.288 MHz can be used to produce images of the human body. what is the wavelength in the body
The aorta is a major artery, rising upward from the left ventricle of the heart and curving down to carry blood to the abdomen, what is the magnitude (in m/s2) of the blood's centripetal acceleration
A tank of gasoline (n = 1.40) is open to the air (n = 1.00). A thin film of liquid floats on the gasoline and has a refractive index that is between 1.00 and 1.40. What is the refractive index of the film
question1a hotel elevator ascends 160 with a utmost speed of 4.9. its acceleration and deceleration both have a
A patient is undergoing open-heart surgery. A sustained current as small as 25μA can be fatal. find the minimum voltage that poses a danger to the patient
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