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When a black hole of mass M1 merges with a black hole of mass M2, it creates a new black hole of mass M3. Do you expect M3 to be equal to, less than, or more than, the sum M1 + M2? Recall mass-energy equivalence and the fact that there is gravitational radiation emitted as they merge. Now look up the first LIGO discovery GW150914 and look up M1, M2, M3 for this discovery. Are you right?
How many revolutions does each tire make before the car comes to a stop? Assume that the car does not skid and that each tire has a radius of 0.306 m.
Three capacitors are shown in the figure. C1=8μF, C2=4μF, C3=2μF. The capacitor network is connected to an applied potential difference V. After the charges on the capacitors have reached their final values, the charge on capacity C2 is 480μF. Wha..
Suppose that you want to hold a meter stick horizontal to the ground by touching it with only two fingers. One finger is at the 10 cm mark, while the other finger is at the 20cm mark. The meter stick has a mass of 100g.
In the a proton is projected horizontally midway two parallel plates that are separated by 0.50 cm. The electrical field due to the plates has magnitude 610,000 N/C between the the plates away from the edges. If the plates are 5.60 cm long find th..
An object is placed to the left of a convex lens and on the optical axis. calculate the magnification of the image formed by the lens
The springs of a 1300kg car compress 6.00 mm when its 68 kg driver gets into the driver's seat. If the car goes over a bump, what would be the frequency of vibrations.
A parallel plate capacitor holds a charge of 30 nC when attached to a battery of voltage V. What is the new potential difference between plates
The left face of a biconvex lens has a radius of curvature of magnitude 11.7 cm, and the right face has a radius of curvature of magnitude 19.6 cm. The index of refraction of the glass is 1.52. Calculate the focal length of the lens for light inci..
A 70.0Hz generator with an rms voltage of 115V is connected in series to a 3.25 kΩ resistor and a 3.50 µF capacitor. Find the rms current in the circuit
There is a tree in the middle of your front yard and you take pictures of a squirrell as it runs around the tree. What is the displacement of the squirrell between the rst and second pictures
a suitcase mass m 15 kg is resting on the floor of an elevator. the part of the suitcase in contact with the floor
a diver running 2.3ms drives out horizontally from the edge of a vertical cliff and 3.1rm s later reaches the water
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