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A giant yo-yo of mass 360 kg measuring about 1.5 m in radius was dropped from a platform 60 m high. One end of the string was tied to the platform, so the yo-yo unwinds as it descended. Assuming that the axle of the yo-yo has a radius of 0.2 m, find the velocity of descent at the end of the fall.
Two capacitors, C1 = 4.0mF and C2 = 9.0mF , are in series, Find the potential difference across second capacitor and Find the charge stored on the second capacitor
Two stunt drivers drive directly toward each other. At time t=0 the two cars are a distance D apart, car 1 is at rest, and car 2 is moving to the left with speed v0, At what time do the two cars collide?
laser beam is incident at an angle of 28.4° to the vertical onto a solution of corn syrup in water. If the beam is refracted to 19.04° to the vertical, what is the index of refraction of the syrup solution
What is the stopping distance of the car, as measured from the point where the driver first notices the red light?
If air resistance is negligible, using energy considerations alone, how fast must the ball be going after it falls 200 meters.
Positive point charges q and 2q are located at x = 0 and x = 3d, respectively. What is the electric field at x = d (point P)? (Use any variable or symbol stated above along with the following as necessary: k for Coulomb constant.) magnitude E = di..
When she reaches the bus, explain how fast is the bus traveling? If the student's top speed is 2.20m/s^2 , will she catch the bus? What is the minimum speed the student must have to just catch up with the bus?
You are testing a new amusement park roller coaster with an empty car with mass 123 kg. One part of the track is a vertical loop with radius 11.1 m, how much work is done by the friction
A pendulum of length 50cm is pulled 30 cm away from vertical axis and free from rest. What would be its speed at the bottom of its swing.
When some stars use up their fuel, they undergo a catastrophic explosion called a supernova. This explosion blows much or all of a star's mass outward, in the form of a rapidly expanding spherical shell.
From the shore, you observe a buoy in the ocean rising and falling with the waves. You determine it takes 5 s for the buoy to go down and up again, Approximately how fast are the waves moving
You shine violet light through a diffraction grating (200 lines/cm) on a screen 2.0 m from the grating. The width of the light beam is 0.15 mm. How many slits will the light pass through
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