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A thin rectangular plate of uniform areal density ? = 2.84 kg/m2 has length of 35.0 cm and width of 21.0 cm. The lower left hand corner is located at the origin, (x,y)= (0,0) and the length is along the x-axis. There is a circular hole of radius 6.50 cm with center at (x,y) = (11.50,8.50) cm in the plate. Calculate the mass of plate.
Three 3 uC charges are at the three corners of a square of side 0.50 m. The last corner is occupied by a -3.0 uC charge. Find the electric field at the center of the square
The range of human hearing extends from approximately 20 Hz to 20,000 Hz. Find the wavelengths of these extremes at a temperature of 8°C. 20 Hz
A tennis player hits a 1.45 kg tennis ball with a racket of mass 2.5 kg. If he hits the ball with a velocity of 7.5 m/s and then stops, what impulse did he imply on the ball
A styrofoam ball of mass 0.120 g is placed in an electric field of 6000 N/C pointing downward. What charge must be placed on the ball for it to be suspended
A 5 kg rock is dropped from rest down a vertical mine shaft. How long does it take for the rock to reach a depth of 79 m? Neglect air resistance.
Determine an average acceleration in coordinates with x-axis
a driver puts on the brakes and decelerates from 25 m/s to zero in12.0s. what distance does the car travel
n air-filled spherical capacitor is constructed with inner and outer shell radii of 7.00 and 14.0 cm, respectively. Calculate the capacitance of the device
A cannonball is catapulted toward a castle. The cannonball velocity when it leaves the catapult is 40 m/s at an angle of 37%uF0B0, What is the cannonball%u2019s impact speed when it lands
A 0.24 meter stick balances at its center. If a necklace is suspended from one end of the stick, the balance point moves 8 toward that end. Is the mass of necklace more than, less than, or the same as that of the meter stick.
A bird, starting from its nest (we'll call that the origin), flies 24.0 km due southeast. It then changes directions and flies 26.0 km in a direction 60° north of east. Find the magnitude and direction of its resultant displacement.
A child playing tee ball hits a stationary 60g ball with a 220g bat swinging initially at 4.0m/s, What's the bat's post-impact speed
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