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We did an experiment with newtons third law where we pushed two carts together and measured the force exerted with a computer. We did it with springs in between the carts first, which showed the force of the carts to be equal. Then we did it with clay attached to collision ends of the carts and the computer read more force on cart A than cart B. Why? Then.... when they had opposite magnets on and we pushed then together there was also more force read on cart A than cart B. Why? With both scenerios we also had cart B be still and we pushed cart A into it. They exerted the same force? Was there human error in this experiment or is there an explanation for it?
Romeo is chucking pebblesgently up to Juliet's window, and he wants the pebbles to hit thewindow with only a horizontal component of velocity. How fast are the pebbles going when they hit her window
Suppose you hook up some AC circuit with a combination of inductors, capacitors, and resistors, and you are measuring the voltage across one of these elements. You set up the oscilloscope so that it is set to .5 VOLTS/DIV, and 5 ms/DIV and observe th..
What is the energy density in the electric field at the surface of a 2.00-cm-diameter sphere charged to a potential of 2000V
A spherical drop of water carrying a charge of 28 pC has a potential of 505 V at its surface (with V = 0 at infinity). What is the radius of the drop
A box of books weighing 302 N is shoved across the floor of an apartment by a force of 401 N exerted downward at an angle of 35.2o below the horizontal. how long does it take to move the box 4.00 m, starting from rest
Obler's paradox presented the contrary facts that the universe had to be infinite and uniform in order to be stable and if the universe was infinite the night sky should be as bright the surface of the stars. How was the paradox resolved?
Photons with wavelength 670 nm are capable of producing photoelectrons from a particular substance. Determine the substance's work function and cutoff wavelength
What is the caused by sun wind in upper atmosphere
The work function of tungsten is 4.50 eV. Calculate the speed of the fastest electrons ejected from a tungsten surface
In a ballistics test, a 25.00 g bullet travelling horizontally at 1300m/s goes through a 20.00 cm thick 450 kg stationary target and emerges with a speed of 800m/s. The target is free to slide on a smooth horizontal surface. How long is the bullet..
A runner traveling with an initial velocity of 1.5 m/s accelerates at a constant rate of 1.6 m/s^2 for a time of 3 seconds. What distance does the runner cover during this process
An arrow is shot at an angle such that it's horizontal velocity is 40 m/s and it's vertical velocity is 20 m/s. Find the horizontal distance the arrow will travel before hitting the ground
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