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You are pulling your sister on a sled to the top of a 20.0 m high, frictionless hill with a 10.0o incline. Your sister and the sled have a total mass of 50.0 kg. You pull the sled, starting from rest, with a constant force of 127 N at an angle of 45.0o to the hill. If you pull from the bottom to the top, what will the speed of the sled be when you reach the top?
Two point charges, q1 = 2.0 pC and q2 = -2.0 pC, are separated by 2.2 µm. What is the dipole moment of this pair of charges
A 0.80-m-long organ pipe that is open at both ends resonates in the fundamental when a tuning fork of unknown frequency vibrates near one end of the pipe. what would be the fundamental frequency of a 0.80-m-long pipe that is open at one end and cl..
A straight wire of radius R carries uniform current density j. Find the magnetic field inside and outside the wire as a function of r, the distance from the center of the wire. Let m be the permeability of free space.
A speedboat moving at 35.0 m/s approaches a no-wake buoy marker 100 m a head. The pilot slows the boat by a constant acceleration of-3.90 m/s2 by reducing the throttle? How long does it take the boat to reach the buoy?
A 130kg astronaut (including space suit) acquires a speed of 2.55m/s by pushing off with his legs from a 2000kg space capsule. What is the change in speed of the space capsule
The single slit diffraction pattern shown below was made with light with λ = 470 nm. What is the width w of the central maximum in cm
Briefly explain in your own words why the pendulum oscillates. Where is the kinetic energy highest? Please explain why that is so. Write the equation for the pendulum's period T. What characteristic(s) of the equipment affect the period
The capacitor in an RC circuit (R = 130 Ω, C= 47 µF) is initially uncharged. Compute the charge on the capacitor one time constant (τ = RC) after the circuit is connected to a 9.0 Volt battery
A bowling ball is released at the upper edge of a ramp that is inclined at an angle of 37o with the floor. Evaluate the total kinetic energy of the bowling ball at the bottom of the ramp
A 3600 kg block falls vertically through 5.6 m and then collides with a 640 kg pile, driving it 4.9 cm into bedrock. find the magnitude of the average force on the pile
Four identical metallic objects carry the following charges: +6.6 µC, +3.4 µC, -7.0 µC, and -2.0 µC. What is the final charge on each object
A supermassive black hole passes through the edge of the solar system 1.20 x 10^13 m away. What is the mass of the black hole
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