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Miah Roberson
Physics
Ball 1, with a mass of 20kg, is moving to the right at 20m/s. At what velocity should Ball 2, with a mass of 40kg, move so that they both come to a stand still upon collision?
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Vaughn Key
Physics
Which conditions are high air pressure systems usually associated with
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Meadow Hanna
Physics
A generator contains a coil that spins to produce an electric current. How is energy transformed by using a generator
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Dilly Dally
Physics
Which statements describe characteristics of all liquids? Check all that apply. Liquids have the ability to change shape. Liquids flow, even with some resistance. Liquids have definite volume. Liquids expand to fill containers. Liquids have molecules that slip past each other.
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Marcos
Physics
A cleaver physics professor wants to create a situation where a block starts from rest at the top of a 31.0° inclined plane and encounters a spring at the bottom of the incline. The spring has a constant 3.4 kN/m and the block's mass is 33.0 kg. How far does the block travel before hitting the spring, if the spring was compressed 37 cm in it's initial collision?
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Arabella Parrish
Physics
What is the momentum of a 12,000 kg car moving at a speed of 40 m/s?
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Macdonald
Physics
the electron configuration for Cl and Y in noble-gas notation.
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Zayne Bell
Physics
In which of these three situations is the object accelerating?
1. A trash truck takes off from the curb.
2. A book rests on a shelf.
3. An airplane banks to circle around the airport.
A. 1
B. 2
C. Both 1 and 3
D. 1, 2, and 3
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Anya Casey
Physics
Based on the time measurements in the table, what can
be said about the speed of the car on the lower track as
compared to the higher track?
How can the reasoning for the above answer be best
explained? On the higher track, the elapsed time is
Calculate speeds for each track. How much faster was
the car on the higher track than the lower track?
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Lover
Physics
A crate is pulled to the right with a force of 85.7 N, to the left with a force of 125.9 N, upward with a force of 525.2 N, and downward with a force of 242.6 N.
1) What is the net external force in the x direction?2) What is the net external force in the y direction?
3) What is the magnitude of the net external force on the crate?
4) What is the direction of the net external force on the crate (as an angle between - 180◦ and 180◦, measured from the positive x axis with counterclockwise positive) ?
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Darren Roman
Physics
Calculate the root mean square velocity and kinetic energy of co, co2, and so3 at 312 k.
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Kenna
Physics
What kind of energy is used when throwing a baseball?
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Skyler Barber
Physics
In 1825, French scientist François-Vincent Raspail became the first scientist to observe that every cell is produced through cell division. How is cell division different in single-celled organisms than in multi-celled organisms? A. Single-celled organisms duplicate their genetic material twice during cell division. B. Cytokinesis divides single-celled organisms into three daughter cells. C. There is no metaphase for single-celled organisms. D. Cell division results in reproduction in single-celled organisms.
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Jeremy Woods
Physics
How does air pressure change with altitude?
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Cohen Anderson
Physics
A Pontiac trans-am, initially at rest accelerates at a constant rate of 4.0 m/s squared for six seconds how fast will the car be traveling a T equals six seconds
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