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How can an atom be ionized by an electric field? How strong does this E-field have to be? Hint: Assume that the binding energy is equivalent to the electrical potential energy of the atom.
An electric toaster operating on 110.8 volts draws a current of 5 amperes. What is the resistance of the toaster
77 N to push a box with an acceleration of 0.55 m/s2. When she increases the pushing force to 85 N, the box's acceleration changes to 0.72 m/s2. What is the mass of the box
a bullet is fired from a rifle that is held 1.59 m above the ground in a horizontal position. the initial speed of the
A 668-kg elevator starts from rest and moves upward for 4.30 s with constant acceleration until it reaches its cruising speed, 1.65m/s. What is the average power of the elevator motor
Low-frequency vertical oscillations are one possible cause of motion sickness, with 0.20 hz having the strongest effect. How much time elapses between two waves hitting the ship
A diffraction pattern forms when light passes through a single slit. The wavelength of the light is 665 nm. Determine the angle that locates the first dark fringe when the width of the slit is each of the following.
What is the density of Kripton gas at standard temperature and pressure? The atomic mass of Kripton is 83.80 atomic mass unit
a weightlifter curls a 35kg bar raising it each time a distance of 0.65m. how many times must he repeat this exercise
A piece of copper tubing used in plumbing has a length of 85.0cm and an inner diameter of 1.40cm at 20 degrees C. When hot water at 90 degrees C flows through the tube, what is the change in its cross-sectional area?
On a frozen pond, a 9 kg sled is given a kick that imparts to it an initial speed of v0 = 2.2 m/s. find the distance the sled moves before coming to rest
A3.50kg object is attached to a spring and placed on a horizontal, smooth surface. A horizontal force of24.0N is required to hold the object at rest when it is pulled 0.200 m from its equilibrium position (the origin of thexaxis).
A sky-diver jumps out of a plane and achives (terminal velocity) before opening his parachute. Explain what is meant by the term terminal velocity, why it occurs and what value of velocity a typical sky diver might experience. Include references t..
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