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When an electron undergoes a transition from a higher to lower state in singly ionized helium, how will the energy of the emitted photon compare with the analogous transition in hydrogen? Explain. (Select all that apply.)This happens because the helium atom has more neutrons.This happens because the helium atom has more protons.The transition energy will be higher in singly ionized helium.The transition energy will be lower in singly ionized helium.This happens because the helium nucleus is less massive
Sound waves travel through an aluminum bar at a speed of 1400 m/s. what is the distance between crests on a sound wave traveling through aluminum
A wheel is rotating about an axis that is in the z-direction. The angular velocity is w = ?6.00 rad/s at t = 0, What is the angular displacement (change in angle) of the wheel at t = 7.00s
A long horizontal wire carries a current of 48 {rm A}. A second wire, made of 2.6 mm diameter copper wire and parallel to the first, is kept in suspension magnetically 15 {rm cm} below. Examine the magnitude of the current in the lower wire.
A skateboarder shoots off a ramp with a velocity of 5.7 m/s, directed at an angle of 52° above the horizontal. The end of the ramp is 1.4 m above the ground. how far is this point horizontally from the end of the ramp
A projectile of mass 0.702 kg is shot straight up with an initial speed of 16.1 m/s. How high would it go if there were no air resistance
a randomized trial is conducted to evaluate the efficacy of a new cholesterol lowering medication. the primary
A satellite in a circular orbit around the earth with a radius 1.011 times the mean radius of the earth is hit by an incoming meteorite. Calculate the amount of that work converted to heat
Determine the smallest thickness of the shaft if the allowable shear stress is ?allow=150MPa and the shaft is restricted not to twist more than 0.08rad
A projectile is fired with an initial speed of 164 m/s. Find the angle of projection such that the maximum height of the projectile is equal to 0.5 times its horizontal range
A fun-loving 10.6 kg otter slides up a hill and then back down to the same place, how much mechanical energy did she lose on the hill
Suppose a formula for gain in heat energy of an object is H = m(A - B), where m = mass and (A - B) is its rise in temperature between A degrees and B degrees (as in #4). Write an expression for the absolute uncertainty, delta-H, in terms of m, del..
A block of mass 0.6 kg is moving up a 40 degree inclined plane at a speed of 1.6 m/s. Assuming the surface is frictionless, how far up the plane will the block go before stopping
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