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A ball of mass m makes a head-on elastic collision with a second ball (at rest) and rebounds with a speed equal to 0.390 its original speed. What is the mass of the second ball?
You measure an electric field of 1.37×106N/C at a distance of 0.159m from a point charge. What is the electric flux through the surface of a sphere
A 3.25G bullet picks up an electric charge of 1.75uC as it travels down the barrel of a rifle. Calculate the magnitude of the bullet's acceleration due to the magnetic force at the instant it leaves the rifle barrel
question1an object of mass 1.2 kg is released from rest at the top of a 5 metre plank inclined at 40 degrees to
Gold, which has a mass of 19.32 g for each cubic centimeter of volume, is the most ductile metal and can be pressed into a thin leaf or drawn out into a long fiber, what is the area of the leaf in square meters
The security alarm on a parked car goes off and produces a frequency of 960Hz. The speed of sound is 343m/s. At what speed are you driving
A solid steel cylinder is standing (on one of its ends) vertically on the floor. The length of the cylinder is 3.5 m and its radius is 64 cm. What is the weight of the object
A stone is dropped into a river from a bridge at a height h above the water. Another stone is thrown vertically down at a time t after the first is dropped. Both stones strike the water at the same time. What is the initial speed of the second sto..
A simple circuit is set up that only consists of a 12 V battery connected to a light bulb with a resistance of 4 Ohms. What current flows through the light bulb
A sound wave in our classroom has speed of 380 m/s. There is a speaker at each end of the table that has 4.0 m length. What is the minimum phase difference between the waves arriving to you from the two speakers
A space traveler weighs 130 pounds on earth. What would the traveler weigh on another planet whose radius is three times that of earth and whose mass is twice that of earth.
Two pipes of the same length are both made to vibrate at their lowest resonant frequency. What is the length of the pipes?
A beam of hydrogen molecules, H2, is directed toward a wall, at an angle of 60° with the normal to the wall. What is the beam's pressure on the wall
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