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Ahmed Rosario
Physics
Why Universe is Created?
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Allie Atkins
Physics
Which of the following is happening right now in the Milky
Way?
a
The Sun is orbiting the Milky Way's galactic center
b
The Earth is orbitincelme Sun
C
Earth's Moon is orbiting the Earth
d All of the above
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Nicolas
Physics
An alpha particle (q = + 2e, m = 4.00 u) travels in a circular path of radius 6.56 cm in a uniform magnetic field with B = 1.70 T. Calculate (a) its speed, (b) its period of revolution, (c) its kinetic energy, and (d) the potential difference through which it would have to be accelerated to achieve this energy.
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Mekhi
Physics
A 1100 - kg car collides with a 1300 - kg car that was initially at rest at the origin of an x-y coordinate system. After the collision, the lighter car moves at 20.0 km/h in a direction of 30 o with respect to the positive x axis. The heavier car moves at 23 km/h at - 46 o with respect to the positive x axis. What was the initial speed of the lighter car (in km/h)
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Phoebe Stout
Physics
Two technicians are discussing reasons why the brake fluid level in the master cylinder might drop. Technician A says that it is normal for the fluid level to drop as the brake linings wear. Technician B says that a hydraulic leak in the system will cause fluid level to drop. Who is correct?
A) Technician A
B) Technician B
C) Technician A and B
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Natalee Dixon
Physics
Two cars have collided head on. one car was traveling at a speed of 55 mph and the other at 35 mph the total speed of impact would be
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Trinity Horton
Physics
force of 10 lb is required to hold a spring stretched 4 in. beyond its natural length. How much work W is done in stretching it from its natural length to 6 in. beyond its natural length?
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Aarav Bernard
Physics
True or False - Could Usain Bolt be faster?
True
False
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Grace Hill
Physics
Ways in conserving and preserving our water resources in our daily lives
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Gia Krueger
Physics
A 1 cm^3 block with a density of 0.92 g/cm^3 is floating in a container of water (d = 1g / cm^3). You may ignore any air pressure throughout this problem. What buoyant force is necessary to keep the block from sinking?
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Hadassah Harvey
Physics
F a thermometer is calibrated to the nearest degree, to what part of a degree can you estimate the temperature it measures?
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Chaim Alvarez
Physics
Is a charge 5.8 * 10^-18 C possible?
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Shane
Physics
If object A has half the mass of object B, but object A moves three times as fast as object B, which object has a greater momentum? Provide proof in your work.
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Tyrell Kramer
Physics
1. The smallest shift you can reliably measure on the screen is about 0.2 grid units. This shift corresponds to the precision of positions measured with the best Earth-based optical telescopes. If you cannot measure an angle smaller than this, what is the maximum distance at which a star can be located and still have a measurable parallax
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Ashlee Arroyo
Physics
If you push down the plunger of a bicycle pump the vhamber's volume is decreased. When that happens pressure in the chamber increases and the air then rushes out the pump and into your flat tire. What gas law does this represent?
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