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A doubly charged helium atom whose mass is 6.6 * 10^- 27 kg is accelerated by a voltage of 2400 V.
What will be its radius of curvature if it moves in a plane perpendicular to a uniform 0.390 -T field?
What is its period of revolution?
An ideal gas at 14.5 °C and a pressure of 1.10 x 105Pa occupies a volume of 4.17 m3. what will be the pressure of the gas
When a resistor is connected across the terminals of an ac generator (104 V) that has a fixed frequency, there is a current of 0.545 A in the resistor. determine the impedance of the series combination
A phone cord is 5.1 m long. The cord has a mass of 0.165 kg. A transverse wave pulse is produced by plucking one end of the taut cord. What is the tension in the cord
The position of an object as a function of time is given by x = bt2 - ct, where b = 2.0 m/s2 and c = 6.7 m/s, What is the instantaneous velocity of the object
A 80-kg driver can decrease his rotation rate in a flip from an initial rate of 3.0rev/s to a final rate of 1 rev in 2 sec by straightening his body. find his final moment of inertia, then find his initial moment of inertia
A hunk of aluminum is completely covered with a gold shell to form an ingot of weight 44.0N. What is the weight of the gold in the shell
A cylinder contains a piston on each side of which is one kilomole of an ideal gas. The walls of the cylinder are diathermal, What is the change in the Helmholtz potential
I place a 250 g mass on a spring. When it has finished oscillating, the spring has extended from 30 cm to 55cm. How do I calculate how far it has extended from its equilibrium? For the 250 g mass, what is the force exerted by gravity on this mass? Wh..
A laser beam is directed at the top mirror from the left edge of the bottom mirror. Elucidate what is the smallest angle of incidence with respect to the top mirror, such that the laser beam
A solid concrete block weighs 250 N and is resting on the ground. Its dimensions are 0.400 m x 0.190 m x 0.0880 m. What is the smallest number of whole bricks
In April 1974, John Massis of Belgium managed to move two passenger railroad cars. He did so by clamping his teeth down on a bit thatwas attached to the cars with a rope and then leaning backward while pressing his feet against the railway ties. T..
A 60.0 kg person running at an initial speed of 4.00 m/s jumps ontoa 120 kg cart initially at rest. determine the final velocity of the person and cart
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