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Rodolfo
Physics
Through which of the following ways can heat be transferred?
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Alani Holland
Physics
A 1.31 kg flower pot falls from a window. What is the momentum of the pot when it has fallen far enough to have a velocity of 2.86m/s?
00.458 kgm/s
06.35 kgm/s
O 3.75 kgm/s
02.18 kgm/s
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Gunner Chang
Physics
How to find the mass of an object given volume and density?
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Frisco
Physics
What is the key difference between a liquid and a gas?
a. intermolecular attractions
c. average kinetic energy
b. the ability to flow
d. the motion of their particles
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Amanda Klein
Physics
A student pushes a 40-N block across the floor for a distance of 10-m. How much work was applied to move the block
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Derick Andersen
Physics
An element emits light at two nearly equal wavelengths, 577 nm and 579 nm If the light is normally incident on a diffraction grating with 2000 lines/cm., what is the distance between the 3rd order fringes of the two wavelengths on a screen 1 m from the grating?
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Ana Bright
Physics
How do you know there was a chemical reaction? Check all indicators below. A solid precipitate formed. The color changed. A gas was produced. The reaction absorbed or released heat.
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Rapunzel
Physics
An atom that has fewer neutrons than protons and more electrons than protons is a (n)
ion.
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Emely Ibarra
Physics
At this pressure, how many molecules of air would there be in a 50? c experimental chamber with a volume of 0.050 m3?
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Guest
Physics
Two gears are connected. Gear A has 10 teeth, while gear b has 40 teeth. If gear B turns at 10 rpms, how fast will gear a turn?
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Jax Riggs
Physics
What type of energy is associated with wind, waves and moving water?
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Dimples
Physics
When an spoon is in a cup of water what is it? diffraction reflection refraction absorption bounce
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Tyrone Lam
Physics
What do glands do for the body?
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Carissa Fritz
Physics
Substance A has a higher heat capacity than does substance B, and substance B has a higher heat capacity than does substance C. If you add the same amount of heat to all three, which order shows the proper temperature increase for the three substances?
A. Temperature of C will increase first, then B, then A.
B. Temperature of A will increase first, then B, then C.
C. Temperature of B will increase first, then C, then A.
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Clinton
Physics
A 60.0 kg student runs up a flight of stairs in Rockefeller Hall a height of 4.0 m in a time of 6.0 s. What average mechanical power (in W) is required to do this?
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