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A golfer on a level fairway hits a ball at an angle of 34° to the horizontal, and it travels 99 yd before striking the ground. He then hits another ball from the same spot with the same speed, but at a different angle. This ball also travels 99 yd. At what angle was the second ball hit?
A block is located on a frictionless plane that is inclined at an angle of 20 degrees. It is held in place by a rope parallel to this plane and which ahs a tension of 100 N. What is the weight of the block?
Use the principle of superposition and the boundary conditions for a stretched string with a fixed or free end to explain the form of reflected pulses. Explain and use the mathematical expression for a standing wave
Discuss how big is a physical protocol data unit and determine the number of simultaneous transmissions for many network architectures.
A cube of ice is taken from the freezer at -8.0°C and placed in a 97 g aluminium calorimeter filled with 286 g of water at room temperature of 20°C. The final situation is observed to be all water at 19°C. What was the mass of the ice cube.
According to Newtonian theory, the kinetic energy (mv^2/2) of a particle is c is equal to mc^2/2, which we now recognize as half of its rest energy. What is the actual (relativistic) velocity of a particle whose kinetic energy is equal to half its..
A 10.0-m long string is moved up and down with simple harmonic motion with a frequency of 33 Hz. Determine the wavelength of the waves on the string
A laptop communicates with a router wirelessly, by means of radio signals. obtain how many bits are downloaded to the laptop in the time it takes the wireless signal to travel from the router to the laptop
A family ice show is held in an enclosed arena. The skaters performto music playing at a level of 76.0 dB. What total sound intensity engulfs you
An ideal transformer has 890 turns in its primary coil and 150 turns in its secondary coil. What is the output voltage of the secondary coil
A person with a mass 66.0 kg is riding in a Ferris Wheel with a radius of 70.0 meters and a period of 80.0 minutes. What normal force does the person experience
One end of a horizontal spring (k = 66.1 N/m) is held fixed while an external force is applied to the free end, stretching it slowly from xA = 0 to xB = 3.50 cm. Find the work done by the applied force on the spring
Two meteoroids are 2.6×105 km from Earthand moving at 2.5 km/s. One is headed straight for Earth,while the other is on a path that will come within 8500 km of Earth's center. What is the speed of the first meteoroid when itstrikes Earth?
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