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Q1. A ball in flight is recorded and analyzed using digital video analysis software. The analysis produced the result that the ball had a horizontal speed of 0.60 m/s. In the analysis, a stick was used as a calibration standard, and it was believed that the stick was 1.0 m long. Though, after the analysis was done, it was exposed that the stick was actually 0.90 m long.
Was the horizontal speed actually faster or slower than analysis result?
What should the result have been for the horizontal speed (Vx)?
Q2. Soccer player 1 is 8.0 m from the goal, as the drawing shows. If she kicks the ball directly into the net, the ball has a displacement labelled. If, on other hand, she first kicks it to player 2, who then kicks it into the net, the ball undergoes two successive displacements, y and x. What are the magnitude and direction of x and y?
Inside a motor, 30.0 A passes through a 250-turn circular loop that is 10.0 cm in radius. What is the magnetic field strength created at its center
A typical lightbulb in your house is rated 200 W, which means that the bulb dissipates 200 W when connected to a DC voltage of 110 V. What is the current through the lightbulb
Four point charges are arranged in a square with side length 1 meter. Charges qA and qD have charges of q= +1 uC, and charges qB and qC have charges of q= -1 uC. Point E exists at the center of the square.
A ship is floating on a lake. Its hold is the interior space beneath its deck; the hold is empty and is open to the atmosphere. What volume of water per second leaks into the ship
A small boat is moving at a velocity of 3.35 m/s while it is accelerated by a river current perpendicular to the initial direction of motion. If current acceleration is 0.750 m/s^2, what will the new velocity of the boat be after 33.5 s.
What is the gauge pressure (in kPa) of the air in the tires when its temperature rises to 26.5°C and its volume increases to 1.70 x 10-2 m3? Assume atmospheric pressure is 1.01 x 105 Pa.
Conclude a rough "scale factor" or "plate scale." Measure the distances in mm or cm between each of the marked wavelengths and average the results.
A 3.0kg mass initially traveling in the +x direction at 3.0m/s collides with a 2.0kg mass traveling in the -x direction at 3.0m/s. find The coefficient of restitution between the two masses
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?
A parallel-plate air capacitor has a capacitance of 400pF and a charge of magnitude 0.250microC on each plate. The plates are 0.500mm apart. What is the surface charge density on each plate
A ship at sea has its radio transmitting antenna at a 10 m height above the surface of the water. how far from the cliff must the ship be
Find the net downward force on the tank's flat bottom, of area 1.60 m^2, exerted by water and air inside the tank and air outside the tank.
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