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A gob of clay, mass 217 g, falls from rest a distance 50 cm before striking and sticking to the edge of a wheel free to rotate about a horizontal axis through its center. The wheel can be approximated as a solid disk of mass 49 kg and radius 84 cm. What is the angular speed of the wheel with the gob of clay attached?
Compute the electric field needed to cause that acceleration, and the amount of charge that the Van de Graaff had accumulated. Note: Van de Graaff has a radius of 0.150 m.
Two blocks with masses M1=7.90kg and M2=1.20kg are attached by a thin string which goes over a frictionless, Calculate the magnitude of the frictional force acting on M1
A man slides along a long water slide and then being launched into the air to land in a water pool. Find the magnitude of the velocity at launch
An ac generator producing 10 V (rms) at 300 rad/s is connected in series with a 25-? resistor, The rms current in the circuit (in mA) is
A small block having mass m sits on a uniform disk that has radius R=0.5m. What is the initial angular velocity of the disk
A runner accelerates to a velocity of 5.36 m/s due west in 3 s. His average acceleration is 0.64 m/s2, also directed due west. What was his velocity when he began accelerating
Start with the thin lens equation and solve for the image distance in terms of the focal length and object distance. Use this to explain why you can expect a real image only
A 57 kg skier starts from rest at a height of H = 19 m above the end of the ski-jump ramp. As the skier leaves the ramp, his velocity makes an angle of 28° with the horizontal.
A car of mass m moving at speed v1 collides and couples with the back of a truck of mass 2 m moving initially in the similar direction as the car at a lower speed v2.
A string is 80.0 cm long and has a mass per unit length of 5.51 × 10-4 kg/m. The tension in the string is 200 N. In the fundamental mode, at what frequency does the string vibrate? Answer A) 376 Hz B) 450 Hz C) 598 Hz D) 702 Hz E) 964 Hz
A 2.40cm × 2.40cm square loop of wire with resistance 1.10×10?2? has one edge parallel to a long straight wire. calculate the current in the loop
What would be the electric current intercepted by the total surface area of the planet?
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