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An electron and a proton, starting from rest, are accelerated through an electric potential difference of the same magnitude. In the process, the electron acquires a speed ve, while the proton acquires a speed vp. Find the ratio ve/vp.
An object is thrown up in theair straight up and it takes 10 seconds to reach a maximum height. What is the object's initial speed?
A steel section of the Alaskan pipeline had a length of 65 m and a temperature of 12°C when it was installed. What is its change in length when the temperature drops to a frigid -38°C?
If the distance between the first and tenth maxima of a double slit pattern is 4.2mm and the slits are separated by 0.15mm with the screen 90cm from the slits,what is the wavelength of the used?
at the top of the loop what is the magnitude of the force exerted on a 55kg rider by the roller-coaster seat?nbspat the
What are the strength and direction of the electric field at the position indicated by the dot in the figure below, in which q = 3 nC, d = 11 cm, and the positive x-axis points to the right?
Comet Halley has an orbital period of about 75 years. Determine the average distance of Comet Halley from the sun in AU
Two capacitors have the same plate separation but one has squareplates and the other has circular plates. The square plates are alength L on each side and the diameter of the circular plate is l.
A flat circular mirror of radius 0.140 m is lying on the floor. Centered above the mirror, at a height of 0.810 m, is a light source. Calculate the diameter of the bright circular spot formed
a golfer hits a shot to a green that is elevated 3.20 m above the point where the ball is struck. the ball leaves the
A force of 29.73 N is applied tangentially to a wheel of radius 0.34 m. This force causes an angular acceleration of 1.20 rad/s2. What is the rotational inertia of the wheel
You have designed a rocket to be used to sample the local atmosphere for pollution. It is fired vertically with a constant upward acceleration of 18 m/s2. Determine the total time the rocket is in the air
Sunlight strikes a piece of crown glass at an angle of incidence of 38 degree. Find the difference in the angle of refraction between a yellow (580 nm) and a violet (410 nm) ray within the glass
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