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Cole Snyder
Physics
What is the electric force between a glass ball that has 2.5 uc charge and a rubber ball that has a - 1.5 uc charge when they are separated by a distance of 5.0 cm
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Yamilet
Physics
A large atom decays and emits a particle. After the reaction is complete, the atom's mass has changed substantially. What kind of particle has most likely been emitted?
alpha particle
beta particle
positron
photon
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Beatrice
Physics
Item 13You have four $10 bills and eighteen $5 bills in your piggy bank. How much money do you have?
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Jessie Foster
Physics
What is the half-life of a compound if 75 percent of a given sample of the compound decomposes in 60 min? assume first-order kinetics?
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Hadassah Garrett
Physics
Which energy conversion is made in a battery?
Question 13 options:
a) chemical to electrical
b) mechanical to electrical
c) light to electrical
d) electrical to chemical
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Trevin Hays
Physics
Which of the following is true about air pressure acting on an object?
a. The amount pushing down on the object will gradually decrease with time
b. The amount pushing up on the object will gradually increase with time
c. There is more air pressure pushing up on the object than there is pushing down
d. There is just as much air pressure pushing up as there is pushing down on the object
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Francisco Cantu
Physics
How do dominant alleles and recessive alleles differ?
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David Schmitt
Physics
How much heat must be added to 4.55 kg of copper to change it from a solid at 1358 K to a liquid at 1358 K? Latent heat of fusion for copper is Lf=20.7*104J/kg.
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Elena Sherman
Physics
If you count 20 beetles in a garden measuring 5 square meters, the population density of the beetles is
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Marlee Chang
Physics
Describe how the metal case of an electrical appliance is connected to earth
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Emely Mcgee
Physics
Which color is in the middle of the light spectrum?
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Beckham
Physics
How long will it take a shell fired from a cliff at an initial velocity of 800 m/s at an angle 30 degrees below the horizontal to reach the ground 150m below?
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Quinton Graham
Physics
A car travels at uniform velocity a distance of 100 meters in 4 seconds. What is the velocity of the car
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Israel Morrison
Physics
Which equations represent the relationship between wavelength and frequency for a sound wave? Check all that apply.
v = lambdaf
A = vf
f = v
A = StartFraction v over f EndFraction.
A = StartFraction f over v EndFraction.
f = StartFraction v over f EndFraction.
f = StartFraction lambda over v EndFraction.
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Raquel Frost
Physics
What is the universal law of gravitation?
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