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A projectile of mass m is launched from the ground at time t = 0, with speed v0, at angle 0 above the horizontal. Aerodynamic drag is negligible. Write the (Newtonian) kinetic, potential, and total energies of the projectile as explicit functions of time. Take the zero of potential energy to be at ground level. Simplify your results as much as possible.
The diodes are oppositely oriented, so that when one diode is forward-biased, the other is back-biased. Which phrase best describes the current in the circuit.
what is the capacitance of a pair of circular plates with a radius of 6.0 cm separated by 3.2 mm of
1. Define Over-training Syndrome and discuss some of the signs and symptoms
A car with a mass of 1000kg is traveling with a velocity of12m/s.The friction due t air resistance is 750N. What is the magnitude of the force needed(bythe engine) to accelerate the car to 18.9m/s in 4.5s? What is the magnitude of the force needed to..
An electron moves in a circular path perpendicular to a uniform magnetic field with a magnitude of 2.5 mT. If the speed of the electron is 1.6 x 107 m/s, calculate the time it takes to complete one revolution
What should be the value of the spring constant k if only 10% of the shaking force of the unit is to be transmitted to the supporting structure?
Two tugboats pull a disabled super tanker. Each tug exerts a constant force of 1.20×106 \rm N, one at an angle 19.0^\circ west of north, and the other at an angle 19.0^\circ east of north, as they pull the tanker a distance 0.670 \rm km toward the no..
Electromagnetic wave 1 has a maximum electric field of 55 V/m, and electromagnetic wave 2 has a maximum magnetic field of 1.5 microtesla. Calculate the average intensity of the first wave
A rescue plane spots a survivor 182 m directly below and releases an emergency kit with a parachute. how far away from the survivor will it hit the waves
Find the current in a 9.00 ? resistor connected to a battery that has an internal resistance of 0.30, What is the emf of the battery
A certain airplane has a speed of 250.0 km/h and is diving at an angle of 30.0° below the horizontal when the pilot releases a radar decoy. The horizontal distance between the release point and the point where the decoy strikes the ground is 700 m..
You lower a weight of metal in a beaker filled with water standing on a scale. When metal weight hangs above the water weighs 179.6 grams.
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