09/05/23
Chapter 9 Question
a). Explain the difference between a proton and a photon.b). Please describe the first experiment where a beam of electrons was shown to have a wave-like properties?
07/16/23
Solenoid construction - Physics 152 (or Phys 2) question
Suppose you wish to make a solenoid whose self-inductance is 1.8 mH. The inductor is to have a cross-sectional area of 1.3 x 10^-3 m^2 and a length of 0.053 m. How many turns of wire are needed?
07/16/23
Magnetic Flux Phys 152 (or Phys 2) question
The magnetic flux that passes through one turn of a 15-turn coil of wire changes to 3.51 from 9.63 Wb in a time of 0.0559 s. The average induced current in the coil is 287 A. What is the resistance...
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07/15/23
newton's law of motion
An ice skater pushes off a railing. Which of the following is the reaction force?a) the force of gravityb) the force of the skater pushing off the railingc) the force of the railing pushing back on...
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11/19/19
physics question
A crate is pulled to the right with a force of 94.4 N, to the left with a force of 128.6 N, upward with a force of 509 N, and downward with a force of 246.8 N.What is the net external force in the...
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11/19/19
initial/final kinetic energy / work
The velocity of a car of mass 1200kg changes of 10 m/s to 60 m/s. a. Calculate the initial kinetic energy (K.Ei) of the car. b. Calculate the final kinetic energy (K.Ef) of the car. c. Write down...
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11/01/19
Physics energy questions
1.What is the potential energy of a 300 kg boulder that sits on the edge of a 25 m tall cliff?2.A person eats an 199,000 J snack before working out. If the person uses all of their eaten energy to...
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12/13/18
A 57 kg girl skies down a 240 meter frictionless slope. What is her Velocity 100 meters from the bottom? What is her kinetic energy 100 meters from the bottom?
I need help with physics homework.
10/25/18
AP Physics Projectile motion?
Im currently on a WebAssign for my AP Physics Class and this problem has been a real pain. Here's the scenario:A projectile is shot from the edge of a cliff h = 285 m above ground level with an...
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