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If two successive overtones of a vibrating string are 280 Hzand 350 Hz, what is the frequency of the fundamental?
A circuit consists of two 150.?k? resistors in series with an ideal 12.0?V battery. Calculate the potential drop across one of the resistors
The figure shows a device that can be used to measure the speed of a bullet. The device consists of two rotating disks, separated by a distance of d = 0.877 m, and rotating with an angular speed of 88.6 rad/s. The bullet first passes through the left..
A stone thrown horizontally from the top of a 26.0-m tower hits the ground at a point 21.0 m from the base of the tower. Find the speed at which the stone was thrown
A parallel plate capacitor has square plates with sides of length 20 cm. The distance between the plates is 1 mm. What is the electric field between the plates
A partially evacuated airtight container has a tight-fitting lid of surface area 81.7 cm2 and negligible mass. what is the air pressure in the container before it is opened
A block of mass 2.0 kg oscillates on a spring with spring constant k= 5 N/M. what is the period of oscillation is rad/s?, what is the new period of oscillation
A hand grenade is thrown with a speed of v0 30 m/s, and a 60 degree angle with x-axis, just prior to exploding. It breaks into two pieces of equal mass after the explosion. One piece has a final velocity of 40 m/s along x. Find the velocity of t..
Two closely wound circular coils have the same number of turns, How are the self-inductances of the two coils related
A standing wave on a 0.8 m string is described by the relation y = 0.02 sin 5nx cos 100 nt Si units, What are the amplitude, frequency, and wavelength
A certain red giant star has a luminosity of 100,000 times that of the Sun and is located 600 light-years from Earth. calculate the rate of interstellar extinction in the direction of the star
Two identical conducting small spheres are placed with their centers 0.330 m apart. One is given a charge of 12.0 nC and the other a charge of 13.0 nC. Find the electric force exerted by one sphere on the other
find the maximum distance she can be from the craft and still return within 2.30 min (the amount of time the air in her helmet remains breathable).
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