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A 5 kilogram cart is moving horizontally at 6 meter per second. in order to change its speed to 10 ms, obtain the net work done on the cart?
Two newly discovered planets follow circular orbits around a star in a distant part of the galaxy. What is the orbital period of the faster planet
particles 1 and 2 are fixed in place on an x axis at a separation of l 8.00cm. their charges are q1 e and q2 -
Calculate the absolute pressure at the bottom of a fresh-water lake at a depth of 29.2 m. Assume the density of the water is 1.00 103 kg/m3 and the air above is at a pressure of 101.3 kPa. Pa (b) What force is exerted by the water on the window of an..
A solenoid with 1000 turns has a cross-sectional area of 7.0cm2 and a length of 25cm. how much energy is stored in the magnetic field of the solenoid
In a photoelectric-effect experiment it is observed that no current flows unless the wavelength is less than 470 nm. What is the stopping voltage required if light of wavelength 410nm is used
A parallel combination of a 1.09-?F capacitor and a 2.81-?F one is connected in series to a 4.33-?F capacitor. This three-capacitor combination is connected to a 15.3-V battery
You are on a roof that is 15 m high and you are launching balloons off at an angle of 30o above the horizon with a speed of 20 m/s. Determine the horizontal range of the balloons
Suppose that while moving into an apartment you move a refrigerator into place by sliding it across the floor. What is the least force you could exert on the refrigerator to move it
A 55 kg meteorite buries itself 4.5 m into soft mud. What was the speed of the meteorite when it initially impacted the mud
the resistance of a very fine tungsten wire with a 10 micro m x 10micro m square cross section is 2978 ohm how long is
A catcher catches a fastball going 95mi/hr and recoils 12cm while stopping the ball in 0.005s. (mass of the ball is 280g). find the average force the ball exerts on the hand & glove
A conductor carrying a current I = 14.7 A is directed along the positive x axis and perpendicular to a uniform magnetic field. A magnetic force per unit length of 0.131 N/m acts on the conductor in the negative y direction. (a) Determine the magnitud..
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