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A 0.040-kg bullet is fired into a 3.50-kg block of wood, which was initially at rest.
The bullet remains embedded within the block of wood after the collision.
The bullet and the block of wood move at a velocity of 7.40 m/s.
What was the original velocity of the bullet?
Particles of the medium implement simple harmonic motion about their mean position in a direction perpendicular to the direction of propagation of wave motion. (i) It goes in th
A 42.0-kg skateboarder travelling at 1.50 m/s hits a wall and bounces off of it. If the magnitude of the impulse is 150.0 kg·m/s. Calculate the final velocity of the skateb
When atoms (or) group of atoms are added, to form more saturated compound it is known as addition reaction.
what is physics
2 moles of an ideal gas expand isothermally and reversibly from 50.0 dm 3 to 97.8 dm 3 at a temperature of 63.7 o C. (i) Calculate the entropy change for this process,
what is measurement
two free charges +q and +5q are a distance L apart. A third charge is placed so that the entire system is in equilibrium.find the location and magnitude and sign of the charge.
A sled and its rider, with a total mass of 95 kg, are perched on top of a 25-m-tall hill. A second hill is 12 m tall (see the diagram below). The rider is given an initial push
The higher power level band is called as the conduction band. (i) It is also called as empty band of minimum energy. (ii) This band is partially filled by the electrons. (
what is virtual displacement?and how is it different from actual displacement?
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