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... more

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... more

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... more

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... more

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... more

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... more

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