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Q1. A 23 g ball is fired horizontally with initial speed toward a 110 g ball that is hanging motionless from a 1.1m long string. The balls undergo a head on, perfectly elastic collision, after which the 110 g ball swings out to a maximum angle theta max= 51. What was v0?
Q2. A spaceship moves past you at speed v. You measure the ship to be 285m long, whereas an astronaut on ship measures a length of 380m. Find out v.
The wavelength of an electromagnetic wave is measured to be 4.15 x 10^-6 m. What is the frequency of the wave, What type of EM wave is this
Consider a 10-kg block resting on a frictionless plane inclined 30 o connected by a rope through a pulley to a 10-kg block hanging free. What is the direction and magnitude of the resulting acceleration of the 2-block system?
I want to put a coating on a glass surface to minimize the reflection of He-Ne laser light (632.8nm wavelength). What is the minimum coating thickness required
A vector has components of 10.0 units along the x axis and 11.0 units along the y axis. What is the magnitude of the vector
Identify three examples of 19th century Impressionist painting or sculpture and three Post-Impressionist works. Explain how the six pieces of art fall into these two styles.
Its walls are equally high and 11 m apart. He takes off by driving a motorcycle up a short ramp sloped at an angle of 24°. Illustrate what minimum speed must he have in order to clear the canyon?
What are the displacement and velocity of the point on the cord. What is the magnitude of the acceleration of one of the liners toward the other because of their mutual gravitational attraction.
A current with sinusoidal time-dependence, whose peak value is 6.55 A and frequency is 879 cycles per second, Calculate the average power dissipated by the loop
It was a dark and stormy night, when suddenly you saw a flash of lightning. how far away was the lightning bolt
Consider a fish of average size swimming near the bottom of a lake of depth 46 m. What is the water pressure next to the fish
Four identical 7 mC charges are placed on a neutrally- charged penny, Determine the resulting potential in the center of the penny due to the four charges
A 2.30 N force pushes it to the left, and a 0.800 N force pushes it to the right. (a) Taking right to be positive, what is the net force acting on it? (b) What is its acceleration?
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