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1. A pair of charged conducting plates produces a uniform field of 12,000 N/C directed to the right, between the plates. The separation of the plates is 40 mm. In the figure, an ELECTRON is projected from plate A, directly toward plate B, with an initial speed of v0 = 2.0 x 10^7 m/s. The speed of the electron as it strikes plate B is?
2. A pair of charged conducting plates produces a uniform field of 12,000 N/C, between the plates, directed from positive plate A to negative plate B The separation of the plates is 40 mm. A PROTON is projected from plate A with a slow initial speed of v0 = 0 m/s. it accelerates towards plate B. The speed of the proton as it strikes plate B is ____?
A car moving at 10 m/s crashes into a barrier and stops in 0.50s. There is a 20kg child in the car. Suppose that the child's velocity is changed by the same amount as the cars in the same time period.
A canoe has a velocity of 0.430 southeast relative to the earth. Find the magnitude of the velocity of the canoe relative to the river
Assume you adjust your garden hose nozzle for a hard stream of water. Find the water speed as it leaves the nozzle
A cannon ball (m=.7 kg) traveling at 200m/s hits and is impeded into a 400 kg car. If the car was initially at rest, what will be its velocity after the impact
A sailboat runs before the wind with a constant speed of 3.7 m/s in a direction 32 degrees north of west. How far north has the sailboat traveled in 21 min
Points A, B, and C are at the vertices of an equilateral triangle. A certain positive charge q placed at A produces anelectric field of magnitude 490 N/C at C.Suppose a second, identical charge is placed at B. What is themagnitude of the new electric..
A current loop, carrying a current of 4.0 A, is in the shape of a right triangle with sides 30, 40, and 50 cm. Find the magnitude of the magnetic dipole moment of the loop
The particles in the nucleus of an atom are approximately 1.00×10?15 apart, while the electrons in an atom are about 1.00×10?10 from the nucleus. How many pounds would the force be
A daredevil jumps a canyon 11.8 m wide. To do so, he drives a car up a 20° incline. What minimum speed must he achieve to clear the canyon
The Atwood machine in the figure consists of masses m1 = 1.20 kgand m2 = 1.05 kg and a solid pulley with a diameter of 6.1 cm and amass mp = 0.606- kg. When released from rest, what is the speed of the heavier mass after it has fallen a distance of..
A cannon shoots a ball with an initial velocity of 152-m/s and a launch angle of 62°. The gravitational acceleration is 9.80 m/s2. Assuming no air resistance, how long would the cannonball stay in the air.
A brick is thrown upward from the top of a building at an angle of 20 degrees to the horizontal and with an initial speed of 10 m/s. If the brick is in flight for 3 seconds how tall is the building
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