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If you bring a negatively charged insulator near two uncharged metallic spheres that are in contact and then separate the spheres, what will be the charge of the right sphere?
Two trains, each having a speed of 28 km/h, are headed at each other on the similar straight track. A bird that can fly 56 km/h flies off the front of one train, when they are 66 km apart and heads directly for the other train. On reaching the other ..
A superball with a mass m = 61.6 g is dropped from a height h = 2.24 m. What is the momentum change of the ball during its collision with the floor
A bolt is dropped from a bridge under construction, falling 92m to the valley below the bridge. (a) How much time does it take to pass through the last 26 percent of its fall? What is its speed (b) when it begins that last 26 percent of its fall a..
questiontwo hockey players aaron and brunnhilde are pushing two pucks on a frictionless ice rink. the pucks are at
What is the centripetal acceleration of a helicopter flying in a horizontal circle of a diameter 510 m at a speed of 120 m/s
A truck moving with a speed of 25.4 m/s strikes a parked car. During the collision the truck and car stick together and slide to a stop together. How far does the truck/car combination slide
With its wheels locked, a van slides down a hill inclined at 26.0 to the horizontal. Find the acceleration of this van if the hill is icy and frictionless
Calculate the Q-value of the alpha decay of 211Po. It was found that 211Po can follow an alpha decay to an meta state. The alpha energy in this decay is 7.275 MeV
A pendulum is 1.20 metres long. What is the speed of the bob when it passes by its equalibrium position if it is pulled aside until it makes an angle of 25 degrees to vertical.
Light has a wavelength of 299.3 nm and a frequency of 7.403 × 1014 Hz when traveling through a certain substance. What is the refraction index of this medium
A helicopter, starting from rest, accelerates straight up from the roof of a hospital. The lifting force does work in raising the helicopter. What is the average power generated by the lifting force
A vacuum cleaner is plugged into a 120.0-V socket and uses 4.1 A of current in normal operation, Find the coil resistance of the motor
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