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Two hydrogen atoms travelling at the same speed collide headon. The collision brings both atoms to a halt. Immediatelyafter the collision each atom emits a 121.6 photon. What was thespeed of each atom just before the collision?
An oscillating block - spring system has a mechanical energy of 1.70 J, and amplitude of 10.0 cm, and a maximum speed of 1.1 m/s. A) Find the spring constant. B)Find the mass of the block. C) Find the frequency of oscillation. (three questions)
A 8.00-kg block of ice, released from rest at the top of a 1.32-m -long frictionless ramp, slides downhill, reaching a speed of 2.76m/s at the bottom. What is the angle between the ramp and the horizontal
1.you are holding a 6-kg dumbbell straight out at arms length. assuming your arm is 0.70 m long what torque is the
Radioactive decay of granite and other rocks in the Earth's interior provides sufficient energy to keep the interior molten, heat lava, and supply warmth to natural hot springs.
q1. a cart starts from rest at the top of the tilted track. assume the track is frictionless. the cart passes photo
An ideal transformer has 50 turns in its primary and 200 turns in its secondary. 7.0- ac is connected to the primary. What is the power supplied to the primary
A certain dog whistle operates at 21.6 hz while another brand X operates at an unknown frequency. estimate the operating frequency of brand X
q. a motorcycle is traveling up one side of a hill and down the other side. the crest of the hill is a circular arc
A commonly used method of fastening one part to another part is called "shrink fitting." By how many Celsius degrees should the rod be cooled
An entertainer, when performing a bubble trick, forms one bubble inside another. The surface tension of the bubble liquid is ?=0.04 N m-1. calculate the gauge pressure in the inner bubble
you accelerate your car starting from rest. while the car is increasing its speed, the frictional force acting from the road on the tires? A) directed backword, opposing the motion B)IS directed vertically uo, C) is directed forward, in the direct..
At what angle of incidence will green light (g = 560 nm) be most strongly reflected? Imagine the film has the minimum thickness that can produce these reflections.
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