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Ruffe
You paddle a canoe with a force of 338 N. You and the canoe have a combined mass of 83 kg. What is the acceleration of the canoe?

A. 5.3 m/s2

B. 4.1 m/s2

C. 0.2 m/s2

D. 2.1 m/s2
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Brent
What is the reaction that corresponds to the first ionization energy of rubidium
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Harley Douglas
How many protons neutrons and electrons are in fluorine and in bromine
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Logan Vaughn
Which is an example of transfroming potential energy to kinetic
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Aditya Bennett
When reviewing the power consumed by the circuit, what are the two possible ways in which the power is consumed?
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Rhodes
The length of a rectangular sheet of metal decreases by 34.5 cm. Its width decreases proportionally. If the sheets original width was half the original length and the new area of the sheet is 1.2 m^2 what is the sheets original width and what percent did the area of the sheet change.
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Davon Nixon
Consider a ball falling toward earth. why is the momentum of the ball not conserved? in what system that includes the falling ball is the momentum conserved? "
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Dominic Nicholson
What is the maximum value that an eccentricity can be? What shape would this be?
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Lorena
Which of the following vectors is equal to r⃗ AB?
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Lillian
Students connect a spring scale to a block on a rough horizontal surface. The students use the spring scale to measure the magnitude of the horizontal force needed to pull the block at a constant speed. Which of the following statements explains why two forces exerted between objects ar equal in magnitude?

a. A The gravitational and normal forces exerted on the block, because they are a Newton's third-law pair.

b. The frictional force and force exerted by the spring scale on the block, because they are a Newton's third-law pair.

c. The normal force and the frictional force exerted on the block, because objects always exert forces of equal magnitude on each other.

d. The frictional forces that the block and the surface exert on each other, because objects always exert forces of equal magnitude on each other.
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Amaya Pham
Which of the following is not a problem with open fireplaces?

a. not all of the available energy is extracted from the fuel.

b. toxic gases are released as the fuel burns.

c. radiant heat is released.

d. smoke and dust particles pollute the air.
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Finn Bowen
When did the objects that we now see as asteroids and comets form in the solar system? when did the objects that we now see as asteroids and comets form in the solar system?
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Brenden Barber
The relationship between observation and hypotheses
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Guest
Two objects, one of mass m and the other of mass 2m, are dropped from the top of a building. When they hit the ground Two objects, one of mass and the other of mass 2, are dropped from the top of a building. When they hit the ground the heavier one will have twice the kinetic energy of the lighter one. the heavier one will have 2√ times the kinetic energy of the lighter one. both of them will have the same kinetic energy. the heavier one will have four times the kinetic energy of the lighter one
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Guest
How much work is done by 0.30 m of gas if its pressure increases by 8.0 x105 Pa and the volume remains constant

Salerno
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