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A proton is released from rest at the positive plate of a parallel-plate capacitor. It crosses the capacitor and reaches the negative plate with a speed of 50000m/s .
What will be the final speed of an electron released from rest at the negative plate?
A highway curve has a radius of 125 m. At what angle should the road be banked so that a car traveling at 27.4 m/s has no tendency to skid sideways on the road.Find an acceleration of box and ramp.
a 500 g ball swings in a vertical circle at the end of a 1.5-m-long string. When the ball is at the bottom of the circle the tension in the string is 15 N. What is the speed of the ball at that point?
A slingshot will shoot a 10-g pebble 22.0 mstraight up. How much potential energy is stored in the slingshot's rubber band
A stone thrown off a bridge 20 m above a river has an initial velocity 14m/s of at an angle of 45 degrees above the horizontal. At what velocity does the stone strike the water
You're burning calories by weight lifting. You lift a 65kg barbell and 1.8m and repeat 15 times. How much energy in Cal do you expend
In a two-slit experiment a third order bright fringe is observed at an angle of 7.10°. If the wavelength of light is 595 nm, what is the slit separation?
An airplane is flying in a horizontal circle at the speed of 542 km/h. If the wings of the plane are tilted 33.0° to the horizontal, what is the radius of the circle in that the plane is flying? Suppose that the required force is provided entirely by..
A rectangular billboard in space has the dimensions 10 meters by 20 meters. How fast and in what direction with respect to the billboard would a space traveler have to pass for the billboard to appear square?
A small circular hole 7.00 in diameter is cut in the side of a large water tank, 25.0 below the water level in the tank. The top of the tank is open to the air.
A volumetric flask made of Pyrex is calibrated at 20.0 °C. It is filled to the 175-mL mark with 36.5 °C Mercury. After the flask is filled, What is the volume of the acetone when it cools to 20.0 °C
You are given a container with 25.7 g of hydrogen atoms. What is the total charge on the electrons in the container? what is total charge on protons?
a merry go round (a disk I=1/2MR^2, M=500 kg, R = 1.5m) roatates at 2m/s. What is the new rotation rate for the merry go round with the child
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