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a projectile is projected from the origin with a velocity of 45.0 m/s at an angle of 30.0 degrees above the horizontal. what is the range of the projectile?
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Question: A rifle with a barrel length of 59cm fires a 8g bullet with a horizontal speed of 430m/s . The bullet strikes a block of wood and penetrates to a depth of 15cm. A) What resistive force (assumed to be constant) ...
In raising a 6400-N piano with a pulley system, the movers note that, for every 3.0 m of rope pulled down, the piano rises 0.26 m Ideally, find the force required to lift the piano. Express your answer to two significant ...
Question: A proton is released from rest at the positive plate of a parallel-plate capacitor. It crosses the capacitor and reaches the negative plate with a speed of 50,000 m/s. What will be the final speed of an electro ...
Question: Your roommate is working on his bicycle and has the bike upside down. He spins the 70.0cm -diameter wheel, and you notice that a pebble stuck in the tread goes by three times every second. Part A) What is the p ...
Suppose that your user's manual lists your car's weight at 2800 pounds, and you calculate a weight of 2900 pounds based on measurements of the car's tire areas and pressure. What is the percent error between your experim ...
Question: A steel cable with mass is lifting a girder. The girder is speeding up. Part A Draw a free-body diagram for the steel cable. Draw the vectors starting at the black dots. The location and orientation of the vect ...
Question: A slab of insulating material of uniform thickness d, lying between -d/2 to +d/2 along the x axis, extends infinitely in the y and z directions. The slab has a uniform charge density Ï. The electric field is z ...
Question: A sinusoidal electromagnetic wave having a magnetic field of amplitude 1.25 \mu {\rm T} and a wavelength of 432 {\rm nm} is traveling in the + x direction through empty space. Write the equations for the electr ...
Question: In a pig-calling contest, a caller produces a sound with an intensity level of 107 dB. How many such callers would be required to reach the pain level of 120 dB? The response must be typed, single spaced, must ...
Question: A proton with an initial speed of 600,000 m/s is brought to rest by an electric field. What was the potential difference that stopped the proton? What was the initial kinetic energy of the proton, in electron v ...
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