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An astronaut is being tested in a centrifuge. The centrifuge has a radius of 6.12 m and, in starting, rotates according to Theta = 0.30 t 2. where t is in seconds and Theta is in radians. t = 5.42 s. What is the magnitude of the astronaut's linear speed?
A charge of -2.85 µC is fixed at the center of a compass. Two additional charges are fixed on the circle of the compass, which has a radius of 0.105 m.
A large population of aloha users manage to create 50 request/sec,including both originals and retransmissions.time is slotted in units 40msec.
On the floor1.5 m in front of the mirror is a small table, 0.75 mhigh. Illustrate what is the minimum height the mirror must have foryou to be able to see the top of the table in themirror?
Two billiard balls are initially traveling toward each other at speeds of 1.05 m/s for ball 1 and 3.40 m/s for ball 2. Find their final velocities
A uniform 1200N beam that is 3.50 m long is suspended horizontally by two vertical wires at its ends. A small but dense 550 N weight is placed on the beam 2.00m from one end.
A suitcase falls out of an airplane which is 400 meters above the ground. How fast is it moving when it reaches the ground
When yellow light from a sodium lamp shines on a certain photocell, What potential would be needed to stop the electrons if light with 4000 A is used
A string on a musical instrument vibrates in its fundamental mode with nodes on either end. The length of the vibrating segment is 0.39 m. The maximum transverse velocity at a point in the middle of the string is 3.8 m/s and the maximum transverse ac..
An object is released from rest on a planet that has no atmosphere. The object falls freely for 3m in the first second. What is the magnitude of acceleration due to gravity on the planet?
a chair of weight 3.0 n lies atop a horizontal floor the floor is not frictionless. you push on the chair with a force
A 0.7 kW heater is designed to operate at 210 V. Assume that its resistance is constant. What is the power dissipated in this resistor if it operates at 120 V
A pot of water is boiling under one atmosphere of pressure. Assume that heat enters the pot only through its bottom, What is the temperature of the heating element in contact with the pot
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