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Q1. A 24 g bullet travelling 230 m/s penetrates a 2.2 kg block of wood and emerges cleanly at 170 m/s. if the block is stationary on a frictionless surface while hit, how fast does it move after the bullet emerges?
Q2. A cart carrying a vertical missile launcher moves horizontally at the constant velocity of 30.1 to the right. It launches a rocket vertically upward. The missile has an initial vertical velocity of 40.33 relative to the cart.
Q3. A pulsar (a rotating neutron star) emits pulses at a frequency of 0.43 kHz. The period of its rotation is? Explain how you got that too?
What is the kinetic energy of α particle while it reaches the other plate? The distance between the plates is 33 cm.
Establish the wave functions and the general expression
What is the length of the greatest and thinnest string that can be located under a tension of 860 without breaking .
Determine an average acceleration in coordinates with x-axis
At one instant a bicyclist is 28.0 m due east of a park's flagpole, going due south with a speed of 11.0 m/s. Then 24.0 s later, the cyclist is 26.0 m due north of the flagpole, going due east with a speed of 11.0 m/s. For the cyclist in this 24.0 s ..
Find out the electric field at radius
How much time is necessary to catch the car
What is total mechanical energy of the motion
A student pulls a box of books on a smooth horizontal floor with a force of 100 N in a direction of 37 degrees above the horizontal. If the mass of the box and the books is 40 kg, what is the normal force on box? a. 332 N b. 312 N c. 392 N d. 292 N
A flight attendant pulls her 73 N flight bag a distance of 245 m along a level airport floor at a constant velocity. The force she exerts is 45 N at an angle of 54° above the horizontal.
Charge is scattered uniformly throughout a long cylindrical shell of inner radius R and out radius 2R. At what radius is the electric field equal to one-half the value on the outer surface.
A small but measurable current of 1.2*10^-10 A exists in a copper wire whose diameter is 2.5mm compute the current density and the electron drift speed.
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