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An unknown amount of helium (He) gas occupies 10.5 L at 1.47 atm pressure and 321 K. What is the mass of helium gas in the
3 answers
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One of corner risers is shown at the right. Find the length of the shortest side of this riser. A right triangle with legs x and
1 answer
435 views
particle 1 of charge q1 = 6.60×10-5 C and particle 2 of charge q2 = 3.30×10-4 C are fixed to an x axis, separated by a
0 answers
567 views
What is your average power if you lift a 33.8 kg box at a constant speed to a height of 3.27 m in 6.10 s?
1 answer
555 views
A mass and spring are arranged on a horizontal, frictionless table. The spring constant is k = 450 N/m, and the mass is 5.4 kg.
1 answer
2,581 views
Calculate the magnitude of the gravitational force between the Earth and an m = 6.00 kg mass on the surface of the Earth. The
1 answer
585 views
A puck of mass m = 1.10 kg slides in a circle of radius r = 16.9 cm on a frictionless table while attached to a hanging cylinder
2 answers
889 views
A spherical raindrop of mass 0.0108 g and radius 1.37 mm falls from a cloud that is at a height of 1165 m above the ground.
0 answers
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A block with mass m = 16.1 kg slides down an inclined plane of slope angle 24.3o with a constant velocity. It is then projected
1 answer
527 views
Two blocks with masses m1 = 1.40 kg and m2 = 3.00 kg are connected by a massless string, as shown in the Figure. They are
1 answer
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an escalator carries you from one level to the next in the airport terminal. the upper level is 4.5 m above the lower level, and
3 answers
6,892 views
Answers (5)
KE = h(nu_i - nu_f) but for maximum transfer of energy nu_f = 0.5*nu_i. So answer will be 100 keV.
x=27
I'm sooo stuck.
thanks so much!!!!!
the answer for the first is 2600 J and the second is -2600 J. i just don't know how to get there!
