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1. An electron accelerates from rest through a potential difference of 182 V.
What is its final speed?
_____ m/s
2. An electron that has a horizontal initial speed of 4.50 x 10^6 m/s enters a region that has an electric field of 120 V/m pointing vertically upward.
(a) How long does the electron take to travel 9 cm in the horizontal direction?
_____ s
(b) In this same time, what is the vertical displacement of the electron? Treat up as positive.
_____ cm
One particle has a mass of 4.59 x 10-3 kg and a charge of +7.03 ?C. A second particle has a mass of 8.88 x 10-3 kg and the same charge. Find the initial separation between the particles
A 120-V motor has mechanical power output of 3.60 hp. It is 87.0% efficient in converting power that it takes in by electrical transmission into mechanical power. Find the current in the motor
A 2.00-m-long rope has a mass of 0.100 kg, What is the frequency of the oscillator if the power transmitted is 120 W
An automobile starter motor has an equivalent resistance of 0.0480 and is supplied by a 12.0 V battery with a 0.0080 internal resistance. What power is supplied to the motor
How far must the spring be compressed. A small remote-control car with a mass of 1.62 moves at a constant speed of = 12.0 in a vertical circle inside a hollow metal cylinder that has a radius of 5.
Starting from rest, object 1 is subject to a 10Nforce for 2.0 s. Object 2, with twice the mass, is subject to a 15N force for 3.0 s
Two tugboats pull a disabled supertanker. Each tug exerts a constant force of 2.00×10^6 km, What is the total work done by the two tugboats on the supertanker
The atomic mass of 5626Fe is 55.934939 u, How much kinetic energy will the products of the decay have
A particle moving along a 2-d x-y plane has its velocity described by the functions: Vx=2t^2, what is the acceleration of the particle
A solid sphere and a solid disk of the same mass and radius are rolling wihtout slipping at the same speed. What is the ratio of their angular momentum
The water system in a town is designed by a careless engineer. He places the new water tower at the top of an extremely tall hill, Calculate the minimum height of the water level in the tower
Four objects are situated along the y axis as follows: a 1.94-kg object is at +2.98 m, Where is the center of mass of these objects
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