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Q1. A 3.3 block of wood sits on a table. A 3.0 bullet, fired horizontally at a speed of 480, goes completely through the block, emerging at a speed of 200 .What is the speed of block immediately after the bullet exits?
Q2. Compute the percent error made over one mile of distance by the "5 second rule" for estimating the distance from a lightning strike for each of the following temperatures. The "5 second rule" says that for every 5 seconds between seeing a lightning strike and hearing the associated sound, the lightning is 1 mile distant. Assume 1 mile equals 1610 meters.
Q3. A train travels at a speed of 24 m/s. Then it slows down uniformly at 0.065 m/s2 until it stops. What distance does the train travel while slowing down?
question 1part 1a knight of round table fires off a vat of burning pitch from his catapult at 15.2 ms at 34 above
A device used in radiation therapy for cancer contains 0.52 g of cobalt-60 (59.933 819 u). Determine the activity (in Bq) of the radioactive material
A uniform ladder of length L and mass m leans against a frictionless vertical wall, making an angle of 48° with the horizontal. how high can you climb before the ladder begins to slip
In a Compton scattering experiment, an x-ray photon scatters through an angle of 18.0° from a free electron that is initially at rest. Calculate the angle through which the electron scatters
A 3-kg steel ball strikes a wall with a speed of 13-m/s at an angle of 60.0° with the surface. It bounces off with the similar speed and angle. If the ball is in contact with the wall for 0.20s, what is the average force exerted by the wall on the..
Bob can see the drai at the bottom center of a water filled pol (n=1.33) that is 3.6 m wide by light emerging 18 degrees above the horizontal
A long wire lying along the x-axis carries a current of 2.8 A in the +x direction. There is a uniform magnetic field present, given by B=0.003i + 0.004j + 0.002k, where i, j, k are the unit vectors along the cartesian coordinate axes') in units of..
Baseball scouts often use a radar gun to measure the speed of a pitch, What will be the increase in frequency if these waves are reflected from a 60.0mi/h fastball headed straight toward the gun
A thermally isolated flask containing helium gas initially at 11 K, allows the gas to slowly escape through a small tube until the pressure inside is 0.98 atm, what was the initial pressure
A 5.0mL syringe has an inner diameter of 4.5mm , a needle inner diameter of 0.29mm, What is the minimum force the nurse needs to apply to the syringe
Electromagnets that produce large magentic fields use water cooling to prevent excessive heating of the magnet's coils. How many liters of water must circulate by the coils each second if the temperature of the coils is not to exceed 49°C
Two wires A and B are of equal length. Each is attached at one end to the ceiling and to a weight at the other end. The cross-sectional area of A is 2.00 mm2 and that of B is 4.00 mm2.
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