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Given two masses, m1 = 18 kg and m2 =12 kg, m1 is moving with avelocity v1 colliding with m2, which is suspended by a string of length 7 m. The two masses are stuck together as the result of thecollision. The compound system swings to the right, passes point Bas shown in the figure, and stops at the horizontal level. The acceleration of gravity is 9.8 m/s2. Find the kinetic energy K of the compound system immediately after the collision.
The Yerkes telescope in southern Wisconsin is the largest refracting telescope in the world. Its objective lens is 40 inches (slightly over a meter) in diameter. What are the focal lengths of the two lenses
A person's body is covered with 1.69 m2 of wool clothing. The thickness of the wool is 2.12 × 10-3 m. How much heat per second does the person lose due to conduction
An alpha particle and beta^ {-} particle, each with kinetic energy 35 {rm keV}, are sent through a 1.10 {rm T} magnetic field. The particles move perpendicular to the field. Find the curvature radius for alpha particle's trajectory. Hint: The kine..
You are given three resistors with the following resistances: R1 = 4.10 ?, R2 = 8.84 ?, and R3 = 3.08 ?. What is the smallest resistance you can assemble using these three resistors
A circuit is powered by a 12.0 V battery in series with R1=25 ohms A second set of resistors R2= 75 ohms, What is the voltage drop across the 75 ohm resistor
A baseball (m = 145 g) approaches a bat horizontally at a speed of 41.5 m/s (93 mi/h) and is hit straight back at a speed of 45.8 m/s (102 mi/h). what is the average force exerted on the ball by the bat
A 3.00kg stone is tied to a thin, light wire wrapped around the outer edge of the uniform 8.00kg cylindrical pulley, Find the angular acceleration of the pulley
A projectile is launched from ground level with an initial speed of 52.2 m/s. Find the launch angle (the angle the initial velocity vector is above the horizontal) such that the maximum height of the projectile is equal to its horizontal range. (I..
Suppose the wheel is rotated at a constant rate so that the mass has an upward speed of 4.67 m/s when it reaches a point P. What is the maximum height, h, the mass will rise above the point P
A car of mass 960 travels at a speed of 30 along the straight road. The driver sees a red traffic light ahead, and applies brakes. The coefficient of friction between the car tyres and the road is 0.88. Take the acceleration due to gravity to be 9.80..
A large truck collides head-on with a small car. The car is severely damaged as a result of the collision. According to Newton's third law, how do the forces acting between the truck and car compare during the collision?
Two containers contain the same gas at different temperatures and pressures, as indicated in the figure. The small container has a volume of 2 L, and the large container has a volume of 4 L.
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