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Q1. A parallel-plate capacitor has a plate area of 1cm^1 and a plate separation of 2.5 mm. To obtain an electric field of 1.0*10^6N/m between the plates, the magnitude of the charge on each plate should be:
What is the charge (in) on positive electrode?
What is the charge (in) on negative electrode?
Q2. A .114 kg baseball is pitched horizontally at 38 m/s. After it is hit by a bat it moves horizontally at -37 m/s.
a) What impulse did the bat deliver to the ball?
b) If the bat and the ball were in contact for .70s, what was the average force the bat exerted on the ball?
c) What is the change in momentum for the ball?
What is mechanical energy dissipated by resistive forces
A 18.0 kg loudspeaker is suspended 2.40m below the ceiling by two 4.10m long cables that angle outward at equal angles. What is the tension of each of the cables.
What is linear acceleration
What is the horizontal component of velocity
A proton travels with the speed of 8.34×105 m/s at an angle of 32.3° with the direction of a magnetic field. The field exerts a force of 3.00×10-17 N on the proton. What is the strength of the field.
A jetliner is moving at a speed of 187 m/s. The vertical component of the plane's velocity is 44.5 m/s. find out the magnitude of the horizontal component of the plane's velocity.
What average force athletes legs apply on a ground
What is the greatest possible distance from the wall
A 7.40-nC charge is positioned 1.70 m from a 4.80-nC charge. (a) Find the magnitude of electrostatic force that one particle exerts on the other. (b) Is the force attractive or repulsive.
A ranger in a national park is driving at 59 km/h while a deer jumps onto the road 61 m ahead of the vehicle. After a reaction time of t s, ranger applies the brakes to produce an acceleration of -3 m/s2. What is the maximum reaction time allowed if ..
How much heat does it take to enhance the temperature of 8.00 of an ideal monatomic gas from 22.0 to 61.0 if the gas is held at constant volume.
A mass m = 90 kg slides on a frictionless track that has a drop, followed by a loop-the-loop with radius R = 18.8 m and finally the flat straight section at the same height as the center of the loop (18.8 m off the ground). Because the mass would not..
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