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A proton high above the equator approaches the Earth moving straight downward with a speed of 345m/s. Find the acceleration of the proton, given that the magnetic field at its altitude is 4.05×10?5T.
A 2.00 kg steel gas can holds 10.0 L of gasoline when full. What is the average density of the full gas can
A novice skier, starting from rest, slides down a frictionless 37.0° incline whose vertical height is 175 m. Explain how fast is she going when she reaches the bottom?
A friend of yours is loudly singing a single note at 411 Hz while racing toward you at 25.5 m/s on a day when the speed of sound is 341 m/s.
A beaker with a capacity of exactly 100mL contains 99.5mL of ethanol at 19degrees C. If it's temperature rises at what temperature will it overflow? (Ignore expansion of the beaker). The answer is not 23.6 degrees C so I am not sure how to figure it ..
Regarding the Earth and a cloud layer 700 m above the Earth as the "plates" of a capacitor, What is the maximum charge the cloud can hold
A sound wave with intensity 10 mW/m2 interferes destructively with a sound wave that has an intensity of 1 mW/m2. What is the intensity of the superposition of the two
A 1380-kg racecar is driving around a circular track of radius 157 m, What is the magnitude of the net force acting on the vehicle at this time and the force's direction relative to the velocity
Assume that ?1(x,t) and ?2(x,t) are solutions of the one-dimensional time dependent Schrodinger’s wave equation. (a) Show that ?1 + ?2 is a solution. (b) Is ?1 * ?2 is a solution of the Schrodinger equation in general? Why or why not?
Using the elbow joint as the axis of rotation, determine the magnitude of the net torque acting about the elbow due to the forearm, hand, and ball
A two-slit apparatus is covered with a red (643 nm) filter. When white light is shone on the filter, on the screen beyond the two-slit apparatus, how wide will that diffraction maximum be
A mechanic pushes a 2.40 103 kg car from rest to a speed of v, doing 4950 J of work in the process. During this time, the car moves 29.0 m. Neglecting friction between car and road,
For a demonstration, a professor uses a razor blade to cut a thin slit in a piece of aluminum foil. evaluate the width of the slit
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