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A soccer player kicks the ball toward a goal that is 21.0 m in front of him. The ball leaves his foot at a speed of 15.6 m/s and an angle of 39.0 ° above the ground. Find the speed of the ball when the goalie catches it in front of the net.
A 57-kg pole vaulter running at 1.1 m/s vaults over the bar. Her speed while she is above the bar is 1.0 m/s. Avoid air resistance, as well as any energy absorbed by the pole, and determine her altitude as she crosses the bar.
Assume we have an infinitely long wire carrying a current of 2.50 A. It is bent into an L-shape extending into positive infinities along x- and y- axes. Find out the magnitude of the magnetic field at a point P with coordinates (0.30 m, 0.30 m)
What is the rms current in a series RC circuit if R = 7.0 k, C = 0.80 µF, and the rms applied voltage is 100 V at 60 Hz and What is the phase angle between voltage and current
he density of free electrons in gold is 5.90x10^28 m^-3. The resistivity of gold is 2.44x10^-8 ohms.m at a temperature of 20 C, what is the drift velocity of the electrons in the wire
A child goes down a playground slide with an acceleration of 1.20 m/s2. Compute the coefficient of kinetic friction between child and slide if the slide is inclined at an angle of 32.2° below the horizontal.
An 80.7-kg jogger is heading due east at a speed of 1.950 m/s. A 53.60 kg jogger is heading 33.1° north of east at a speed of 2.89m/s. compute the magnitude (enter first) and direction of the sum of momenta of the two joggers.
A physics demo launches a ball horizontally while dropping a second ball vertically at exactly the same time. [Delayed Feedback] 1) Which ball hits the ground first?
If the coefficient of static friction is 0.951, illustrate what is the maximum speed that the car can take without skidding?
A third listener is positioned along the positive y-axis. What is her y-coordinate if same wave front reaches her at the same instant it does the first two listeners.
Create a graph corresponding to the stone vertical velocity
A 130- baseball, moving along the axis with speed 35 , strikes a fence at a 45 angle and rebounds along axis with unchanged speed Give the - and - components of its change in momentum.
An open-open organ pipe is 67.9 cm long. AN open-closed pipe has an essential frequency equal to the third harmonic of the open-open pipe. How long is the open-closed pipe.
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