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An object of mass m1=7.3 kg moving at 5.5 m/s strikes a stationary second object of unknown mass. After an elastic collision, the first object is observed moving at 3.3 m/sat an angle of -37° by respect to the original line of motion.
1) What is the mass of the second ball?
2) What is the energy of the second object?
3) What is the magnitude of the second object's momentum after the collision?
4) At what angle did the second ball move relative to the direction of the first ball's initial motion?
Light with a wavelength of 4.5 x10-5 cm passes through a single slit and falls on a screen 100 cm away. If the slit is 0.015 cm wide, what is the distance from the center of pattern to first dark band.
Two parallel plates of area 51 cm.^2 have equal but opposite charges of 4.10E-07 C. Find the dielectric constant of the material
Tom the cat chases a Jerry the mouse across a 1.2m high table. Jerry steps out of the way at the last second, and Tom slides off the table and strikes the floor 1.5m from the edge of the table.
The primary coil of a transformer has N1 = 4.00 102 turns, and its secondary coil has N2 = 1.20 103 turns. If the input voltage across the primary coil is ?v = (140 V) sin ?t, what rms voltage is developed across the secondary coil? V
a 2.0 kg object has a velocity v 4.0i ms at t 0. a constant resultant force f 2.0i 4.0j n then acts on the object
If a soldier shoots an enemy with the intent of killing him, he wants the bullet to deliver maximum energy. On the other hand, if he wants to basically knock someone down (say for dispersing a riot) he wants the bullet to deliver maximum force.
Suppose 1.0 mol of a monatomic ideal gas initially at 10 L and 307 K is heated at constant volume to 614 K, What is the efficiency of the cycle
Show that the Planck radiation law and the Raleigh-Jeans law become identical if the size of the quantum E=hv is allowed to vanish or if the temperature becomes very high.
A 200 MW laser pulse is focused with a lens to a diameter of2.0μm. find the laser beam's electric field amplitude at the focal point
2.0 kg block is attached to a spring with spring constant 22 N/m. While the block is sitting at rest, a student hits it with a hammer and almost instantaneously gives it a speed of 46 cm/s.
Consider an alternating current of the form i(t) sin(2pit), where t is the time elapsed measured in seconds. (a) at what times is the magnitude of the current largest? (b) if this current were applied to a resistor, at what times would the magnitude ..
A 0.157-kg particle undergoes simple harmonic motion along the horizontal x-axis between the points x1 = -0.253 m and x2 = 0.495 m. Find the force constant, k, and the total mechanical energy
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