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An object initially at rest explodes in two fragments of masses 2.6 kg and 3.3 kg that move in diametrically opposite directions. If the speed of the first fragment is 3.6 m/s find the internal energy of the explosion.
A speed ramp at an airport is basically a large conveyor belt on which you can stand and be moved along. What is the speed at which the belt of the ramp is moving
Let the angle of incidence be 70° and the transmitted region be diamond with n2 = 2.42
If air drag is negligibly small, how fast is sequoia cone moving while it reaches the ground if it dropped from the top of a 114 tree.
Three resistors are connected in parallel to a 12.0 V battery. Two of the resistance values are 58\Omega and 42\Omega. what is the value of the third resistor
A girl throws a rock horizontally with a speed of 12.0 m/s from a bridge. It falls 2.28 seconds before reaching the water below. How high is the bridge from the water? How far horizontally does the rock travel before striking the water.
A resistor draws 12mW when placed acriss the terminals of a 1.5V battery, Determine the current drawn by the resistor
An electron is accelerated by a uniform electric field (1000 V/m) pointing vertically upward. Use energy methods to get the magnitude and direction of its velocity
A chair of weight 74.0 N lies atop a horizontal floor; the floor is not frictionless. You push on the chair with a force of F = 47.0 N directed at an angle of 41.0^circ below the horizontal and the chair slides along floor.
The relative angle of the knee changes from 5 degrees to 85 degrees during the knee flexion phase of a squat exercise. What is the total angular distance covered during 5 squats
The fundamental frequency of a pipe that is open at both ends is 598Hz. How long is this pipe
Two sinusoidal waves of the same period, with amplitudes of 4.0 and 6.0 mm, travel in the same direction along a stretched string; they produce a resultant wave with an amplitude of 9.225 mm. The phase constant of the 4.0 mm wave is 0. What is the..
An electron moves at a speed of 480m/s perpendicular to the direction of the uniform magnetic field of 1 T. What is the radius of the electron's circular orbit in units of nanometers (1 m = 109 nm)
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