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Physics

Julianna Hansen

Which mixture can be separated based on differences in particle size of the components

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Physics

Guest

What happens in an open circuit

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Physics

Jaylon Pitts

When analyzing forces, it is allowable to break the motion and forces into horizontal and vertical components.

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Physics

Myah Fry

What is the density of a rock which has a mass of 35 grams and a volume of 7.0 cubic centimeters?

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Physics

Rogelio Bowen

Which statement best describes the relative conductivity of semiconductors?

a. They are the most conductive elements.

b. They are the least conductive elements.

c. They are more conductive than metals but less conductive than nonmetals.

d. They are more conductive than nonmetals but less conductive than metals.

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Physics

Guest

A tire swing is released from some initial height such that the speed of the tire at the

bottom of the swing is 2.5 m/s. What is the initial height of the tire? Note: g = 9.8 m/s2

A 0.13m

B 0.16m

C 0.32m

D 3.1 m

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Physics

Gina Joseph

Paleoclimatologists study the climate and its changes throughout earths history. what observation by paleoclimatologists led scientists to predict that the average temperature of the planet is rising due to the combustion of fossil fuels?

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Physics

Reuben Haney

Which is bigger, a kilometer or a mile?

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Physics

Angela Jarvis

A coach wants her team to have fun, win some games, and be a productive unit. What is the most important personality trait the coach should demonstrate to achieve her goals?

sportsmanship

leadership

persistence

discipline

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Physics

Trevor Russo

You slide a box of books at constant speed up a 30° ramp, applying a force of 200 n directed up the slope. the coefficient of sliding friction is 0.18. (a) how much work have you done when the box has risen 1 m vertically? (b) what's the mass of the box?

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Physics

Dominick Gentry

Two trains leave the same station at the same time. The first train travels north at 60 mph. The second train travels west at 45 mph. Find how fast the distance between the trains is changing two hours after the trains have left.

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Physics

Izaiah Choi

If the room radius is 4.5 m, and the rotation frequency is 0.8 revolutions per second when the floor drops out, what is the minimum coefficient of static friction so that the people will not slip down?

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Physics

Benji

Energy of motion is known as what energy

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Physics

Guest

While a constant total force of 17 n is exerted on a cart, the cart's acceleration is 5 m/s2. find the mass of the cart?

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Physics

Guest

Which of the following is NOT a possible cause of a genetic disorder in humans?

changes in the number of chromosomes

mutations in the DNA of genes

being born underweight

changes in the structure of chromosomes

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