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A uniform electric field of magnitude 375 N/C pointing in the positive x direction acts on an electron, which is initially at rest. After the electronhas moved 3.20 cm, what is
(a) the work done by the field electron,
(b) the charge in potential energy associated with the electron, and
(c) the velocity of the electron?
on its highest power setting a microwave oven increases the temperature of 0.450 kg of spaghetti by 45.0degc in 140 s.a
it is believed that a large electric fish known as torpedo occidentalis uses electricity to shock its victims. a
A converging lens with a focal length of 30cm and a diverging lens with a focal length of -52cm are 127cm apart. Calculate the distance between image and diverging lens
Monochromatic light of wavelength 600 nm illuminates a single slit of width 6.5 um and a diffraction pattern is created on a wall. The central maximum has a width of 3.5m. Determine the separation between the slit and the wall.
If the mass of Jupiter is 1.8 x 10^27 kg, then find the escape velocity for an object launched from the surface of Jupiter
A girl of mass 40 kg jumps with a horizontal velocity of 5 m s-1 onto a stationary cart with frictionless wheels. What is her velocity as the cart starts moving
Helium is used to fill a balloon of diameter 31 cm at 23C and 1.5 atm. The mass of a helium atom is 4.0026 u, the conversion factor from u to kg is 1.66 × 10?27 kg/u, What is the average kinetic energy of each Helium atom
What was the initial negative charge on one of the spheres, and what was the initial positive charge on the other?(Hint: Use charge conservation and solve for one of the initial charges. You will end up with a quadratic equation. The solutions giv..
the water level in a vertical glass tube1.50m long can be adjusted to any position in the tube. a tuning fork vibrating
A shell is fired wit ha horizontal velocity in the poxitive x direction from the top of an 80m hight cliff. Determine the initial speed of the shell
The quadriceps pulls on the patella with a force of 1000N, while the patellar tendon pulls on the patella with a force of 1000N also. how large is the compressive force exerted by the femoral condyles on the patella
it takes 7500 J of work to slide a crate a distance of 15 m across a floor. A force of 650 N was applied to the rope. what angle did the rope make with the ground
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