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A flat puck with mass M=.10kg is rotated in a circle with radius R=.20 m on a frictionless air-hockey tabletop at constant speed. It is helf in this orbit by a light cord connected to a dangling blck with mass m through a central hole. If the puck is observed to complete 5.0 whole revolutions per socond, then what is the weight G=mg of the dangling block?
A car and a motorcycle is racing from rest. The motorcycle first takes the lead because its constant acceleration am = 8.40 m/s2, How long does the car take to reach the motorcycle
A 3 m long rigid beam with a mass of 115 kg is supported at each end. An 60 kg student stands 2 m from support 1. How much upward force does each support exert on the beam.
In February 2004, scientists at Purdue University used a highly sensitive technique to measure the mass of a vaccinia virus (the kind used in smallpox vaccine). What is the mass of the virus in femtograms
After landing on an unfamiliar planet, a space explorer constructs a simple pendulum of length 46.0cm, What is the magnitude of the gravitational acceleration on this planet
The left mass (10 kg) has a coefficient of kinetic friction between itself and the table of .25, calculate the contact force that acts between the masses
Light from a laser falling on two slits produces the third-order fringe at an angle of 8.8 degrees. what is the distance between the two slits
After the collision, the blue puck has a velocity of 2i – 2j m/s. Illustrate what is the velocity of the gold puck after the collision?
A 69-kg construction worker stands at the far end of the beam. What is the magnitude of the torque about the point where the beam is bolted in place.
In a Compton collision, if the wavelength of the photon is 1.00 pm and its deflected angle is 60.0°
The index of refraction for crown glass is 1.512 at a wavelength of 660 nm (red), whereas its index of refraction is 1.530 at a wavelength of 410 nm (violet), what is the angle of refraction for each wavelength
What is an average speed of this train
Two objects with masses of 2.10 kg and 6.80 kg are connected by a light string that passes over a frictionless pulley. (a) Determine the tension in the string.
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