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A uniform hoop and a uniform solid disc are located side by side at the top of an incline of height h. If they are released from rest and roll without slipping, calculate their speeds at the bottom of the incline and find which one reaches the bottom first? They have the similar radius R.
A neon atom (m = 20.0 u) makes a perfectly elastic collision with another atom at rest. What is the mass of the unknown atom
A capacitor of capacitance C = 6 ?F is connected in series with a resistor R = 5 M? to a battery of emf What is the value of the current in the circuit when the capacitor has reached 20% of its maximum charge?
A 3.00 g lead bullet traveling at 650 m/s strikes a target, converting its kinetic energy into thermal energ, Find the heat required to melt the bullet
A 500.0 g pot of water at room temperature (20.0C) is placed on a stove. How much heat is required to change this water to steam at 100C
A closed ended manometer is used to measure the pressure in a tank of gas. The working fluid for the manometer has a specific gravity of 1.47. what is the gauge pressure (in Pa) in the tank
Ligh of wavelength 248nm is directed onto the surface of a metal, what is the longest wavelength of light which will eject electrons from this metal
An electric fan is running on HIGH. After fan has been running of 13.2 minutes, the LOW button is pushed. The fan slows down to 98 rad/sec in 1.83 seconds. What was the initial angular speed of the fan
The velocity vs. time curve of an object is an increasing straight line. You observe when the time is 1 second that the velocity is equal to 3 m/s, What is the acceleration of the object
A thin rod consists of two parts joined together. One-third of it is silver and two-thirds is gold. The temperature decreases by 31.3 C°. Determine the fractional decrease ?L/(LSilver + LGold) in the rod's length, where LSilver and LGold are the init..
A 15.0 kg bucket of water is suspended by a ropewrapped around a windless, that is a solid cylinder 0.500 m indiameter with mass 11.0 kg. With what speed does the bucket strike the water
A thermometer can be made from a brass wire (temperature coefficient of resistivity 0.00150°C^?1 at 20.0°C), What is the resistance of the wire
A nonconducting sphere contains positive charge distributed uniformly throughout its volume. Which statements about the potential due to this sphere are true?
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