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A tennis player hits a ball at ground level, giving it an initial velocity of 20.0 at 53.0 above the horizontal. What are the horizontal and vertical components of the ball's initial velocity? How high above the ground does the ball go? How long does it take the ball to reach its maximum height? What is the ball's velocity at its highest point? What is the ball's acceleration at its highest point? For how long a time is the ball in the air? When this ball lands on the court, how far is it from the place where it was hit?
What is an average speed
A resonant circuit using a 220 nF capacitor is to resonate at 18.0 kHz. The inductor in the circuit is to be a solenoid, How many loops will the inductor contain?
You ionize a hydrogen atom with a photon with wavelength 77.5nm. What orbital was the electron in before ejection
The primary coil of a transformer has 100 turns and its secondary coil has 400 turns. If theac voltage applied to the primary coil is 120V
Two objects of the same mass move along the same line in opposite directions. The first mass is moving with speed. What was the speed of the second mass before the collision
External work equal to 4x10-7 J is needed to move a -5 nC charge at constant speed to a point at which the potential is - 20 V. What is the potential at the initial point
A parallel-plate capacitor has the volume between its plates filled with plastic with dielectric constant K. Use Gauss's law to calculate the magnitude of the electric field in the dielectric
One particle has a mass of 4.00 10-3 kg and a charge of +9 µC. A second particle has a mass of 7.00 10-3 kg and the same charge. Find the initial separation between the particles
a box of mass m1kg slides 20sqrt2m down an incline plane of angle pi4 and kinetic friction is 12.what are the
In order better to map the surface features of the Moon, a 305-kg imaging satellite is put into circular orbit around the Moon at an altitude of 1.21 × 102 km. What is the Gravitational Potiential Energy
How far is he from the orgin. A simple pendulum has a mass of 0.350 kg and a length of 2.00 m. It is displaced through an angle of 7.0° and then free.
A flat coil of wire consisting of 20 turns, each with an area of 50 cm2, is positioned perpendicularly to a uniform magnetic field that increases its magnitude at a constant rate from 2.0 T to 6.0 T in 2.0 s. If the coil has a total resistance of ..
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