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A long thin rod of length 2L rotates with a constant angular acceleration of 8.0 rad/s^2 about an axis that is perpendicular to the rod and passes through its center. What is the ratio of the angular speed (at any instant) of a point on the end of the rod to that of a point a distance L/ 2 from the end of the rod?
When a car's starter is in use, it draws a large current. The car's lights draw much less current. As a certain car is starting, What is its internal resistance
a step down transformer produces a voltage of 6 v across the secondary coil when the voltage across the primary coil is
A 1408.0 g mass is on a horizontal surface with ?k = 0.39, and is in contact with a massless spring with a force constant of 526.0 N/m which is compressed. Calculate the distance the spring was compressed
After holding the piston, for a short while, you let it go.what happens to the piston is work done on or by the gas, what happens to the temperature of the gas
Three silver wires of equal length are connected in series with a 1.50 V battery. Their cross-sectional areas are 1.00, 5.00 and 10.0 cm2. (a) What is the potential difference across the narrowest wire? (b) The medium wire? (c) The widest wire?
This is the question: An atomic nucleus at rest decaysradioactively into an alpha particle and a smaller nucleus. What will be the speed of this recoiling nucleus
Four point charges of magnitude 3.1 µC are at the corners of a square of side 5 m. Find the electrostatic potential energy if all the charges are negative.
An auto race is held on a circular track. A car completes onelap in a time of 21.5 seconds, with an average tangential speeed of38.1 m/s. What is the radius of the track
a 330 g air track cart on a horizontal air track is attatched to a string that goes over a pulley with a moment of
Find out the change in entropy of the system
A meter rule is balanced at the 70 cm mark by placing a 200-g mass at the 80 cm mark. At what point will the ruler balance if the 200-g mass is moved to the 90 cm mark?
Two cars collide at an icy intersection and stick together afterward. The first car has a mass of 1600 kg and was approaching at 7.00 m/s due south. Calculate the final velocity of the cars
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