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A particle has a de Broglie wavelength of 3.20 × 10-10 m. Then its kinetic energy doubles. What is the particle's new de Broglie wavelength, assuming that relativistic effects can be ignored?
A 0.020-kg bullet is shot horizontally and collides with a 1.35-kg block of wood. The bullet embeds in the block, what was the original speed of the bullet
Assume that, as lying on a beach near the equator of a far-off planet watching the sun set over a calm ocean, you start a stopwatch just as the top of the sun disappears.
A yo-yo has a rotational inertia of 1140 g·cm2 and a mass of 81.3 g. Its axle radius is 3.27 mm, and its string is 106 cm long, What is the magnitude of its linear acceleration, rotational kinetic energy
A wooden block weighing 7 N is at rest on top of a wooden desk. The coefficient of static friction between the block and the desk is 0.41. Find out the minimum horizontal force required to move the block if the following occurs.
As the swimmer approached the Ontario shore, she encountered a cross current of 2 m/s [E 25 S]. Compute her velocity with respect to the crowd observing from the beach (with respect to the ground)
How far should you place the lens from the slide. Express the direction as an angle with respect to the +x axis.
Long, long ago, on a planet far, far away, a physics experiment was carried out. First, a 0.250- ball with zero net charge was dropped from rest at a height of 1.70. The ball landed 0.400 later. Next, the ball was given a net charge of 7.85 and dropp..
A bucket of mass 1.50 is whirled in a vertical circle of radius 1.20. At the lowest point of its motion the tension in the rope supporting the bucket is 25.00 N. Find out the speed of the bucket. How fast must the bucket move at the top of the circle..
The lander is 8.2 meters above the surface and has the downward speed of 0.89 m/s while the engine is cut off. What is the speed of the lander just before it touches the surface.
A tsunami travelling across deep water can have the speed of 750 {rm km/h} and a wavelength of 360 km. what is the frequency.
A small block with a mass of 0.170 kg is attached to a cord passing through the hole in a frictionless, horizontal surface .The block is initially revolving at a distance of 0.50 m from the hole with a speed of 0.80 m/s. The cord is then pulled from ..
What least amount heat is needed to bring 20-g of water at 20C to the boiling point and completely boil it away.
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