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The metal plates of a TV tube are parallel and 12 mm apart. The potential difference between them is 12 kV.
a. Find the force on an electron passing between the plates.
b. What acceleration is produced?
A Styrofoam box has a surface area of 0.85 m2 and a wall thickness of 2.0 cm. The temperature of the inner surface is 5.0°C, determine the thermal conductivity of the Styrofoam
A horizontal conductor in a power line carries a current of 5500 A from south to north. Find the magnitude and direction of the magnetic force
A 6,000 lb car is traveling SW at 40 mph. it is hit by another car that weighs 7,000 lb and is traveling NNE at 50 mph. What is the speed and direction of the cars immediately after the collision
A loop antenna of area A = 1.87 cm2 and resistance R = 4.06 µO is perpendicular to a uniform magnetic field of magnitude 19.7 µT. How much thermal energy is produced in joules in the loop by the change in field
An object of mass 2.5 kg on a table is connected to a hanging object of mass 11.2 kg by means of a string via a pulley. Caculate the acceleration of the system
A sphere of mass ofm= 1.40 kg is first placed directly on the plate of an electronic scale. The scale shows 13.73 N as the weight of the object. Calculate the density of the sphere
A penny of mass 3.1g rests on a small 20g block supported by a spinning disk. The coefficients of friction between the block and disk are 0.75 (static) and 0.64 (kinetic).
A rocket which has an exhaust speed of 8 km/s is to have a lift off vertical acceleration of 8 m/s^2 from the NASA launch pad. at what minimum rate must the rocket consume fuel
Consider a heat pump which is used to cool down a home during the summer. Its coefficient of performance in cooling mode is 4.14. at what rate does it remove heat from the home
A baseball pitcher pivots his extended arm about his shoulder joint, applying a constant torque of 190 N · m for 0.21 s to his arm, What is his arm's angular acceleration and final angular velocity
Consider an optical gain medium that has two levels at E 1=1.50 eV and E 2=3.50 eV. What is the spontaneous emission wavelength
A transverse wave is propagation on water surface and is described by the equation y=0,01sin[(1,0)x + (30) t ], find the magnitude of velocity of the particle's displacement
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