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If a sports car with a mass of 500kg travels down the road with a speed of 30m/s its kinetic energy is
15,000 joules
7,500 joules
225,000 joules
400,000 joules
A 25.0 gram object moving to the right at 20.0 cm/s overtakes and collides elastically with a 8.0 gram object moving in the similar direction at 15.0 cm/s. Calculate the velocity of each object after the collision
The maximum allowable potential difference across a 200mH inductor is 350V. You need to raise the current through the inductor from 1.5A to 3.5A. What is the minimum time you should allow for changing the current
A concave mirror (R = 82.4 cm) is used to project a transparent slide onto a wall. The slide is located at a distance of 52.3 cm from the mirror, How far from the wall should the mirror be located
a constantan strain gauge has a nominal 120 ohm electrical resistance in a unstressed and unstrained state. if the
A 22.0 microF capacitor and a 5.30 mH inductor are connected in series with an open switch. What is the angular frequency of the charge oscillations in the capacitor after the switch is closed
Outline the Quantum Confinement effects in quantum wells and outline the density of states for 3D, 2D, 1D and 0D systems
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.
secretariat ran the 1.25 mi long kentucky derby with times of 25.4 s 24.4 s 23.7 s 23.2 s and 23.5 s for each of the
What is the difference between heat and temperature and what are the SI units
A temperature controller designed to work in an atmosphere containing steam a bimetallic strip of brass and steel built connected at their ends by rivets. Each metal has 2.0 mm thick. At 20 ° C, the strip is 10.0 cm long and is straight.
A 50.0 ball of clay traveling east at 8.00 collides and sticks together with a 40.0 ball of clay traveling north at 8.00. Illustrate what is the speed of the resulting ball of clay?
Two 0.11 gram pith balls are suspended from the equal point by threads 50 centimeter long. Obtain the magnitude of the charge on each ball
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