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Flynn
In which galaxy is our solar system located?

a. milky way

b. ngc 4414

c. andromeda

d. small magellanic cloud
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Fisher Bridges
Two astronauts, of masses 60 kg and 80 kg, are initially right next to each other and at rest in outer space. They suddenly push each other apart. How far has the heavier astronaut moved when the lighter astronaut has moved 12 m
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Albert Fisher
A person suffering from anaemia gets tired
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Pookie
Jessica took a Mylar balloon outside on a very hot day. As she waited for the bus the balloon began to get bigger. What is the best explanation of this?
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Ryland Berry
Describe how electricity flows through a simple closed circuit.
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Sexton
Solar energy is produced by

A. fusion of light nuclei to make heavier ones

B. the slow release of heat left over from the Sun's formation

C. fission of heavy nuclei into lighter ones

D. solar magnetism
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Justice Tran
A 72-kg fisherman in a 114-kg boat throws a package of mass m = 15 kg horizontally toward the right with a speed of vi = 5.0 m/s. Neglecting water resistance, and assuming the boat is at rest before the package is thrown, find the velocity of the boat after the package is thrown.
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Gemma Acevedo
Roberto creates an animation titled "Flying through an Atom." The animation makes it seem as if the viewer passes all the way through an atom, starting from one side, then through the atom's center, and then leaving through the other side. What is the best description of the order of events in the animation?
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Samara Diaz
Which part of the ear vibrates at the frequency of sound waves
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Rebecca Wall
A submarine that is in the sea what principle is that
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Harold Weaver
1. It takes 26.5 N to pull a 72 kg sled across snow. What is the coefficient of friction? 2. A 565 N rightward force pulls a large box across the floor with a constant velocity of 0.75 m/s. If the coefficient of friction is 0.8, what is the weight of the box?

3. A rightward force of 246 N is applied to a 35 N suitcase to accelerate it across the floor. The coefficient of friction between the crate and the floor is 0.75. What is the acceleration of the crate?

4. If a 1500 N force is exerted on a 200 kg statue to move it across the floor. If the coefficient of friction is 0.37, what is the crate's acceleration?
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Myron
A person holds onto an object for 2 minutes, but doesn't move the object. Is work done on the object?
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Tiana
Which two vectors add together to give a resultant with the smallest magnitude, and which two vectors add to give a resultant with the largest magnitude? in each case specify the magnitude and direction of the resultant?
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Esmeralda
The largest velocity reached by a falling object is its
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Martin Middleton
Shows a 190 g hamster sitting on an 820 g wedge-shaped block. the block, in turn, rests on a spring scale. an extra-fine lubricating oil having μs=μk=0 is sprayed on the top surface of the block, causing the hamster to slide down. friction between the block and the scale is large enough that the block does not slip on the scale.
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