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Four protons are placed at the corners of a square of side length a = 1.0 angstrom. The square is in the +x, +y quadrant of the xy plane with one corner at the origin. Find the electric field magnitude and direction (a) at the center of the square, (b) at the point (-a, -a), and (c) at the point (1/2a, 0). In each case state which protons contribute to the field you compute and which cancel.
A 257 kg log is pulled up a ramp bymeans of a rope that is parallel to the surface of the ramp. The ramp is inclined at 30.0° with respect to the horizontal.
A father racing his son has 1/3 the kinetic energy of the son, who has 1/3 the mass of the father. The father speeds up by 1.5 m/s and then has the same kinetic energy as the son.
The index of refraction for violet light in silica flint glass is 1.66 and that for red light is 1.61. What is the angular dispersion of visible light
Estimate the number of drops of water in all the oceans on earth. You will need to use the facts that the oceans cover about 2/3 of the earth's surface and are about 4000 m deep on average
A man throws a rock from the top of a cliff that is 50.0 m above ground level with an initial speed of 27.0 m/s at an angle of 28.0° above the horizontal.
Positive charges with magnitudes 3.50 mC and 6.75mC are located at the origin and at the point (10,0) metters on the x axis, respectively. What are the strength and direction of the field they generate at the point (0,10) on the y axis?
A 1.5kg block intially at rest at the top of a 3m incline with a slope of 30degrees begins to slide down the incline. How fast is the block moving midway along the inlcine
An 91 kg man climbs a 981 m high mountain in 1.01 hour and uses 7.6 kcal/min, Determine the power consumption in watts.
A grating spectrometer is used to resolve second order peaks from two wavelengths of ?1 = 495.00 nm and ?2 = 495.71 nm. What is the minimum number of slits this grating must have
In the absence of air resistance, a projectile is launched from and returns to ground level. It follows a trajectory similar to that inthe figure below and has a range of 25 m.
Calculate the force of gravity on a 69.29-kg mass at the Earth's surface. The mass of the Earth is 6E24 kg, and the its radius is 6.4E6 m. ( 6E24 kg can also be written as 6 X 1024 kg.)
A satellite is in orbit about Earth. Its orbital radius is 5.47×107 m. The mass of the satellite is 8913 kg, Determine the orbital speed of the satellite
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