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a mass m neutron has elastic collision with a mass m' stillnucleus. How much kinetic energy does the neutron lose?
a top view of a bar that can slide on two frictionless rails. The resistor is R = 6.20 ?,and a 2.50-T magnetic field is directed perpendicularly downward, At what rate is energy delivered to the resistor
You are eating lunch at your favorite cafe and your friend calls and says he wants to meet you. He is calling from a city 175 miles away and wants to meet you somewhere between the two locations. how long will your friend be driving before he meets..
Two lightbulbs have cylindrical filaments much greater in length than in diameter. The evacuated bulbs are identical except that one operates at a filament temperature of 2 195°C and the other operates at 2 085°C. Find the ratio of the power emitt..
A guitar string is 90.0cm long and has a mass of 3.17 g. From the bridge to the support post (=l) is 60.0cm, What are the frequencies of the fundamental and first two overtones
A car with a total mass of 1.57 103 kg has wheels of radius 32.5 cm and moment of inertia 0.875 kg · m2. Find the car's rotational energy when the car is moving at a speed of 21.0 m/s
During a testing process, a worker in a factory mounts a bicycle wheel on a stationary stand and applies a tangential resistive force of 120 N to the tire's rim. what force must be applied to the chain
How long after the first strike does Wilma hears the sound. What is the time interval between successive sound pulses she hears.
An insulated Thermos contains 131 cm3 of hot coffee at 82 °C. You put a 12g ice cube at its melting point to cool the coffee. By how many degrees has the coffee cooled once the ice has melted and equilibrium is reached? Treat the coffee as though ..
A rectangular fish tank measures 30 cm by 65 cm by 40 cm high. What is the total force of the water on the bottom
A horizontal magnetic field of 2.0×10?4 T is at an angle of 25 to the direction of the current in a straight, horizontal wire 75 cm long. what is the magnitude of the force on the wire
If 100,000 MHz radar waves are incident on a plane coated with a polymer whose index of refraction is n = 1.50, how thick would you make the coating
Calculate the gyrofrequency of an electron in Earth's magnetic field, having a value of ~ 35 A-m-1. Determine the electron density values required to produce a zero refractive index for the case of propagation parllel to Earth's magnetic field at a f..
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