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The electric field in a certain region is given by the equation: E=(axn-b)i, where a = 19 N/(Cmn), b = 6 N/C and n = 5. Find the electric potential difference, in volts, between the points x2 = 1.7 m and x1 = 0.65 m.
A spy camera is said to be able to read the numbers on a car's license plate. Find what must be the diameter of the camera aperture
A mass (M=2kg) is placed in front of a spring with k=900N/m, compressed d=50cm. The spring is released, shooting the mass forward from A to the spring's equilibrium position at B, What is the velocity of the mass at point C
A 72.3 kg man carrying a 5.23 kg box gets on an elevator. As the elevator accelerates upwards at 0.224 m/s^2, he feels the box is heavier, During this time, what is the weight on the floor from his feet
A portion of audio equipment is said to have a signal-to-noise ratio of 58 dB. Determine the ratio of intensities of the signal and the background noise
Two beams of planar wavefront, 633-nm coherent light, whose directions are 120o apart, strike a photographic emulsion of index 1.6. Sketch the arrangement, showing the orientation of the planes of constructive interference within the emulsion.
A hot-air balloon is accelerating upward under the influence of two forces, its weight and the buoyant force. What is the acceleration of the rising balloon
A ball with a mass of 0.75 kg is thrown vertically into the air with an initial velocity of 10 m/s. establish the velocity of the ball when it hits the ground if it was initially released 2.0 m above the ground.
A rope can withstand 1.0 x 10^3 N of tension. If the rope is being used to pull a 10.0-kg package across a c=frictionless surface, what is the greatest acceleration that will not break the rope
The contains 410 turns and has an area per turn of 3.1 x10-3 m2. The magnetic field is 0.23 T, andthe current in the coil is 0.26 A. What is themagnitude of the minimum normal force
A compound microscope has a tube that is 19.50 cm long. The focus of the eyepiece is 1.5 cm and the focus of the objective is 0.6 cm . If the distance for normal vision is 25 cm ,what is the approximate magnification of the microscope?
While waiting for your plane to take off, you suspend your keys from a thread and set the resulting pendulum oscillating. It completes precisely 88 cycles in 1 minute. You repeat the experiment as the plane accelerates down the runway, and now find t..
The acceleration of gravity on Mars is 37 m/s2. If anastronaut can jump upward 20cm on the earth's surface, how high could he jump on the surface of Mars
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