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Cara Novak
Physics
A ship is traveling at 154 m/s and accelerates at a rate of 1.80 m/s^2 for 1 minute. What will its speed be after that minute? Calculate the answer in both meters per second and kilometers per hour.
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Frances Garrison
Physics
Gerry is looking at salt under a powerful microscope and notice a crystalline structure. what can be known about the salt sample that Gerry is looking at
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Maliyah Clements
Physics
The kinetic energy of a moving object is equal to the work required to bring it to its speed from rest, or the work the object can do while being brought to rest.
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Aron Schroeder
Physics
Imagine standing on a bathroom scale and reading your weight. now lift one foot and read your weight again. does the scale read more, less or the same weight when you are standing on one foot?
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Mekhi Richards
Physics
The period T of a simple pendulum depends
on the length L of the pendulum and the acceleration of
gravity g (dimensions L/T^2). (a) Find a simple combination of
L and g that has the dimensions of time. (b) Check the
dependence of the period T on the length L by measuring
the period (time for a complete swing back and forth) of
a pendulum for two different values of L. (c) The correct
formula relating T to L and g involves a constant that is a
multiple of pi, and cannot be obtained by the dimensional
analysis of Part (a). It can be found by experiment as in
Part (b) if g is known. Using the value g = 9.81 m/s² and your
experimental results from Part (b), find the formula relating T
to L and g.
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Yahir Barber
Physics
What is an example of the theory that the best adapted organisms for an environment are the ones most likely to survive
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Braeden Bates
Physics
What does not affect the apparent brightness of a star?
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Jordon Villa
Physics
What happens when Dr. Hewitt places a current - carrying wire between the poles of the magnet for the first time?
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Mike Castaneda
Physics
The football player running toward the goal line has
A. Potential energy
B. Chemical energy
C. Kinetic energy
D. Elastic potential energy
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Guest
Physics
If the density of an object is 30 g/cm3 and its volume is 10 cm3, what is its mass in grams?
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Bernard Ingram
Physics
Explain how atoms are aligned in a magnet in terms of the North and South poles.
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Mateo Rubio
Physics
Which of the following has the largest gravitational potential energy
A. a 10kg dog running down the street at 30mph
B. a tightrope walker slowly crossing niagara falls
C. a 0.02kg bullet moving down the barrel at 800mph
D. a semi truck parked in a parking lot
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Royce Sharp
Physics
Why does the speed of an object change when a force acts on it?
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Krystal Velazquez
Physics
What are factors that would change the position of the wave lengths measured? (There are more than one answer.) a) size of the tube b) tuning fork frequency c) distance between the tuning fork and tube d) room temperature e) area of the tube
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Savanna Hubbard
Physics
This particle is found in the nucleus and adds mass to the nucleus, but changing its number does not change what the element is. This particle is the
A. proton.
B. photon.
C. neutron.
D. electron.
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