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Question
A car accelerates uniformly from 0 to 1.00×102 km/h in 4.91 s. What force magnitude ?? does a 65.0-kg passenger experience during this acceleration?
he cable of the 1400 kg elevator cab in the figure snaps when the cab is at rest at the first floor, Find the speed of the cab just before it hits the spring
An old oaken bucket of mass 6.75 kg hangs in a well at the end of a rope. The rope passes over a frictionless pulley at the top of the well, How much work does gravity do on the bucket
The femur is a bone in the leg whose minimum cross-sectional area is about 4.10 x 10-4 m2. Obtain the maximum stress that this bone can withstand
Your task in physics lab is to make a microscope from two lenses.One lens has a focal length of 12 {\rm cm}, the other a focal lengthof 2.5 {\rm cm}. You plan to use the morepowerful lens as the objective, and you want its image tobe 16 {\rm cm} f..
A backpack full of books weighing 52 Newton rests on a table in a physics classroom. If the spring is pulled until it stretches 2 centimeter and the pack remains at rest, find the force of friction exerted on the backpack by table
A blue ball is thrown upward with an initial speed of 20.4 m/s, from a height of 0.6 meters above the ground. 2.5 seconds after the blue ball is thrown, What is the maximum height the blue ball reaches
A wire of resistance 9.0 is connected to a battery whose emf script e is 5.0 V and whose internal resistance is 1.0. How much energy appears in the wire as thermal energy in that time
lenzs law is said to be a consequence of the principle of conservation of energy. explain this statement by describing
you are designing a process to store pressurized argon gas a monatomic gas. you start with 4 moles of argon at a
a radar pulse travels from the earth to the moon and back in 2.6 seconds. Calculate the distance from the earth to the moon
A 500 uF capacitor is charged to 290 V. Then a wire is connected between the plates. How many joules of thermal energy are produced
The nucleus of radioactive polonium-210, with a mass of about 3.49?10?25kg , is known to decay by emitting an alpha particle with a mass of about 6.68?10?27kg. what is the recoil speed of the remaining nucleus
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