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A ball is thrown three times at the same speed from the top of a building. One time it is thrown straight up, the next time it is thrown horizontally, and a third time it is thrown straight down. Does the ball hit the ground below at the same or different speeds in each case? Explain.
Two identical spring and mass oscillators are set in motion in perpendicular directions. The masses are each 4.0 kg and the spring constants are 196 N/m. Compute the angular frequency and the period of the oscillators.
The speed of light in a certain medium is 2.2E10^8 m/s. What is the index of refraction of this medium
A projectile is shot from the ground at an angle of 55 degrees with respect to the horizontal,find the horizontal component and the vertical component of initial velocity
In some places, insect "zappers," with their blue lights, are afamiliar sight on a summer's night. These devices use a highvoltage to electrocute insects.
A 0.33 kg softball has a velocity of 19 m/s at an angle of 34° below the horizontal just before making contact with the bat. What is the magnitude of the change in momentum of the ball
The armature windings of a dc motor have a resistance of7.5? . The motor is connected to a 120-V line, What will be the current in the motor
question on a part-time job you are asked to bring a cylindrical iron rod of density 7800kgm3 length 79.0 cm and
A wheel free to rotate about its axis that is not frictionless is initially at rest. A constant external torque of +40 N·m is applied to the wheel for 17 s, giving the wheel an angular velocity of +520 rev/min. Find the frictional torque
question1the period of a simple pendulum defined as time necessary for one complete oscillation is measured in time
A boy and a girl are balanced on a massless seesaw. The boy has a mass of 75 kg and the girls mass is 50 kg. find where must the girl sit on the other side
Emilie wishes to fly to Phun City, a place where Physics Geeksrule the land, loacted 800 km [N] of her present postion. what will be her observed ground velocity
What would some challenges and benefits be for community health nurses in providing care for different communities? For similar communities?
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