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An arrow is shot at an angle such that it's horizontal velocity is 40 m/s and it's vertical velocity is 20 m/s. Find the horizontal distance the arrow will travel before hitting the ground.
A 640-g hollow ball 21cm in diameter is suspended by a wire and is undergoing torsional oscillations at a frequency of 0.78 Hz
a 11.00 kg block starts from rest at the top of a 25.0 meter long 30.0 degree incline. Its kinetic energy at the bottom of the incline is 1347.5 J
The volume of an ideal gas is held constant. Determine the ratio P2/P1 of the final pressure to the initial pressure
A large block of copper initially at 20.0oC is placed in vat of hot water (80.0oC). For the first 1.0 J of heat that flows from the water into the block, find the entropy change of the block
Chris spends his spare time running a bungee jumping service off the Henley Street bridge. He has a 123 ft long bungee cord (unstretched) that has a spring stiffness of 34 lb/ft. To test his bungee, he ties the bungee cord to the bridge railing, t..
A uniform 270N ladder rests against a perfectly smooth wall, making a 40.0? angle with the wall. What is the friction force on the ladder at the floor
At the moment of release, two planes have the same speed of 152 m/s, and each is carrying a tank at the same height of 2.05 km above the ground. find direction of the velocity with which the fuel tank hits the ground if it is from plane A
An infinitely-long, uniformaly charged line of charge with linear charge density x=0.1_C/m lies a distance d=0.068_m from the center of a sphere with radius R = 0.23_m. What is the amount of charge inside the sphere
What is the wavelength of light for the least energetic photon emitted in the Balmer series of the hydrogen atom spectrum lines
Sources A and B emit long-range radio waves of wavelength 530 m, with phase of the emission from A ahead of that from source B by 90°. The distance rA from A to a detector is greater than corresponding distance rB from B by 110 m. What is the magni..
The number of electrons in a copper penny is approximately 10*10^23, How large would the force be on an object if it carried this charge and were repelled by an equal charge one meter away?
A diffraction grating is 25.0 mm wide and has 8,000 rulings (lines). Light of wavelength 656 nm is incident on the grating, and a diffraction pattern is seen on a screen a short distance away. a) What is the distance between adjacent rulings of the g..
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