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Max
Physics
A race car travels a circular track at an average rate of 135 mi/hr. The radius of the track is 0.450 miles. What is the centripetal acceleration of the car?
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Harrison Charles
Physics
2 In a hydraulic press a force of 20 N is applied to a piston of
area 0.20 m2. The area of the other piston is 2.0 m2. What is
a the pressure transmitted through the liquid,
b the force on the other piston?
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Anabella French
Physics
If the earth's gravity were much less powerful our atmosphere would be similar to
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Jason Mckay
Physics
Which physical of matter can be expressed numerically in Si units
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Cantu
Physics
Which galaxy resembles a sombrero? A. M104 B. Milky Way C. NGC 4414 D. Andromeda
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Brooklyn
Physics
How is electron movement related to the bonding in sodium chloride?
A) The atomic orbitals overlap and share electrons causing an ionic bond to form.
B) Electrostatic sharing of electrons between atoms allows covalent bond formation.
C) Electrons exchange creating ions to form an ionic bond by electrostatic attraction.
D) Orbital overlap occurs between the atoms to exchange electrons to form the covalent bond.
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Leonard Mckenzie
Physics
If the mass of a material is 43 grams and the volume of the material is 7 cm^3, what would the density of the material be?
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Piper Delacruz
Physics
Approximately how much of Earth's water is freshwater?
1 %
3 %
97 %
50 %
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Nyla Hogan
Physics
A system absorbs 186 kj of heat and the surroundings do 110 kj of work on the system. what is the change in internal energy of the system? express the internal energy in kilojoules to three significant figures.
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Chickie
Physics
A student wanted to obtain a very accurate value for the volume of a piece of steel. he filled a 100.0 cm3 graduated cylinder to the 50.0 cm3 mark with water. after he carefully dropped the steel into the cylinder, the water level rose to the 55.6 cm3 level. he reported the volume of the steel as 5.6 cm3. how could the student improve the reliability of his analysis?
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Amirah Choi
Physics
A pot sitting on a stove is heated by ...
A: Radiation
B: Conduction
C: Convection
D: Combustion
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Skyler Randolph
Physics
Consider a blackbody that radiates with an intensity I1I1I_1 at a room temperature of 300K300K. At what intensity I2I2I_2 will this blackbody radiate when it is at a temperature of 400K400K
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Jonathan Kelley
Physics
When light is put off, a spark is produced across a
switch. Why?
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Guillermo Brandt
Physics
Imagine tying a string to a ball and twirling it around you. How is this similar to the moon orbiting Earth? In this example, what is providing the constantly changing, inward force?
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Kaia Christensen
Physics
Where can you find rust on rocks?
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