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Q1. The potential difference between the plates of a capacitor is 70 V. Midway between the plates; a proton and an electron are released. The electron is released from rest. The proton is projected vertically toward the negative plate with an initial speed. The proton strikes the negative plate at the same instant that the electron strikes the positive plate. Ignore the attraction between two particles, what was an initial speed of the proton?
Q2. The magnitude of the vector is 45.0 units and points in the direction 386 counter clockwise from the positive x-axis. Calculate the x-component of this vector.
question1a sealed well-insulated 2000ml thermos bottle with negligible heat capability is completely empties - a
On a frozen pond, a 11.3 kg sled is given a kick that imparts to it an initial speed of v0 = 1.69 m/s. Use the work kinetic energy theorem to find the distance the sled moves before coming to rest
A bullet of 0.0500 kg is fired into a block of wood. Knowing that the bullet left the gun with a muzzle velocity of 350. m/s, find The average force required to stop the bullet
A jet flying at 125 m/s banks to make a horizontal circular turn. The radius of the turn is 3810 m, Calculate the magnitude of the necessary lifting force
A bicycle racer is traveling at 10 m/s with an acceleration of 0.5 m/s^2. The radius of the bicycle wheel is 33 cm. What is the angular velocity of the bicycle wheels
The loaded cab of an elevator has a mass of 3.0 x10^3 kg and moves 171 m up the shaft in 23s at constant speed. At what average rate does the force from the cable do work on the cab.
An 91 kg man climbs a 981 m high mountain in 1.01 hour and uses 7.6 kcal/min, Determine the power consumption in watts.
A block of mass 1.90 kg is pushed 4.60 m along a frictionless horizontal table by a constant 16.0 N force directed 27.0° below the horizontal.
A 3.0-kg block sits on top of a 5.0-kg block which is on a horizontal surface. If the force is 10% greater than your answer for (a), what is the acceleration of each block
A worker stands still on a roof sloped at an angle of 23° above the horizontal. He is prevented from slipping by a static frictional force of 540 N. Find out the mass of the worker.
An aircraft weighing 892 N is accelerated at 9.9 m/s/s for 5 seconds, What is the force required to launch the aircraft
A transformer on a pole near a factory steps the voltage down from 3600 V (rms) to 120 V (rms). The transformer is to deliver 2000 kW to the factory at 95% efficiency. Find values for the the power delivered to the primary
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