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1) Two parallel plates are connected to a 40 V battery. The distance among the two plates is 24 cm. What is the magnitude, in V/m, of the electric field among the two plates?
______ V/m
2) Two parallel plates, connected to a 70 V battery, are separated with an air gap. If the plates get close enough, the electric field will exceed the breakdown value of E for air. (A *spark* will occur!) We observe sparking among the plates when the distance is reduced to 18 cm, what is the breakdown value for the air (in V/m)?
An organ pipe open at both ends has a harmonic with afrequency of 416 Hz. Find the fundamental frequency and the length of the pipe
The starter motor of a car engine draws a current of 160A from the battery. The copper wire to the motor is 4.80mm in diameter and 1.2 m long. How much charge passes through the starter motor
A boy in a wheelchair (total mass 45.0kg) wins a race with a skateboarder. He has speed 1.40 m/s at thecrest of a slope 2.00 m high and 12.4m long.
A therapist examines the range of motion of an thlete's knee joint during her rehabilitation from a knee injury, What was the angular displacement of the leg from full extension to full flexion
A copper wire is 7.00 m long and has a cross-sectional area of 1.00 10-4 m2. what is the maximum torque that can act on it
rocket, initially at rest on the ground, accelerates straight upward from rest with constant acceleration 44.1m/s^2. Find the maximum height ymax reached by the rocket
In a particular power plant, the fuel rods last 2 years before they are replaced. If a plant with rated thermal power 1.00 GW operates at 76.0% capacity, what is the loss of mass the fuel?
An astronaut on the Moon fires a projectile from a launcher ona level surface so as to get the maximum range. what is the range of the projectile
for every action there will be opposite and equal reaction but why this is not being implemented in balayya babu movies
A 12.0 g rifle bullet is fired with a speed of 740 m/s into a ballistic pendulum with a mass of 8.00 kg, suspended from a light and long cord. Compute the max height through which the block would rise
A pump lifts 200 kilogram of water per hour a height of 5.0 meter. Find the minimum necessary power output rating of the water pump
A 1500 ft2 wall has an R-value of 11.0 hr.oF.ft2/Btu, including the effects of the interior and exterior air layers. How many Btus are lost through this wall
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