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Two points charges attract each other with an electric force of magnitud F. If one charge is reduced to one third its original value and the distance between the charges is doubled, what is the resulting magnitud of the electric force between them?
A. F/12
B. F/3
C. F/6
D. 3F/4
F. 3F/2
Particle A of mass M and speed v moving to the right, strikes particle B of mass 3M that is moving to the left at speed v5.0. find the velocity of the center of mass of the two particles before the collision
You are to gracefully crawl in the tube and sit calmly in seat without holding on to anything. The cannon will then be raised to an angle such that your speed through the air at your highest point is 10 ft/sec.
find the tension in the tight rope
A hook in boxing primarily involves horizontal flexion of the shoulder, while maintaining a constant angle at the below. What is the average speed of the fist during the hook
The collision between a hammer and a nail can be considered to be approximately elastic. Estimate the kinetic energy acquired by a 14-g nail when it is struck by a 550-g hammer moving with an initial speed of 3.3 m/s.
A cannon ball is fired at a wall located 450 meters away. The initial horizontal component of the balls velocity is 90 m/s and it's initial angle is 24 degrees. How long does it take for the ball to reach the wall
During exercise, a person may give off 182 kcal of heat in 30 min by evaporation of water from the skin. How much water has been lost
A thin, flat washer is a disk with an outer diameter of 14 cm and a hole in the center with a diameter of 2 cm. The washer has a uniform charge distribution and a total charge of 8 nC. What is the electric field on the axis of the washer at a distanc..
Rhea, one of Saturn's moons, has a radius of 765 km andan acceleration due to gravity of 0.278 m/s2 at itssurface. Calculate its mass and average density
Calculate the energy output when 0.78 kg of water vapor,initially heated to 120°C, condenses to water at 84°C.
Illustrate what is the highest point above the water she reaches? If she walked off the diving board rather than springing up would she be travelling faster, slower, or at teh same speed when she hits the water?
A sliding bar has a length of .547m and moves at 2.34m/s in a magnetic field of magnitude .204T. The resistance in the circuit is .698ohms. find the new speed of the rod
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