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Clay Mcintyre
PhysicsPhysics
One of the reasons it is important to keep our water supplies pollution free is potability. Water that is potable is

A) polluted.

B) oxygenated.

C) fit to drink.

D) unfit to drink.
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Elliana Jacobs
PhysicsPhysics
3 forces that you exert when riding a bike
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Eva Boyle
PhysicsPhysics
Kuiper Belt objects are composed of which substances? Select all that apply.

A. Iron

B. Silicon

C. Water

D. Methane

E. Ammonia
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Kiley Austin
PhysicsPhysics
If two protons are added to an oxygen nucleus, the result is
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Londyn
PhysicsPhysics
Which is larger than a single atom?

a. magnetic domain

b. electron

c. neutron cloud

d. proton
Answer Answers (1)
Odin Mathews
PhysicsPhysics
What does the person in front of the ambulance experience?
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Lexie Walters
PhysicsPhysics
An 18000 kg freight car rests against a spring bumper at the end of a railroad track. The spring has constant k=3.2*10^5 N/m. The car is hit by a second car of 9400 kg mass moving at 8.0 m/s, and the two couple together. A) Find the maximum compression of the spring. B) Find the speed of the two cars when they rebound together from the spring.
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Jaylene
PhysicsPhysics
What is a Nuclei of uranium atoms split apart
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Polo
PhysicsPhysics
The velocity a rocket must reach to establish an orbit around Earth is called

a. thrust velocity.

c. artificial velocity.

b. orbital velocity.

d. escape velocity.
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Ezequiel Mcdowell
PhysicsPhysics
What is striking a match an example of?

A) providing activation energy to a physical reaction

B) providing activation energy to a chemical reaction

C) an endothermic reaction

D) an endothermic process
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Sherlyn Medina
PhysicsPhysics
From Energy Graphs (LOLs) Again: Scenario 4 Hitting a Golf Ball

Mass of the golf ball is 0.045 kg and has a forward velocity of 41 m/s due to the hit by the club.

9. What is the kinetic energy of the ball after being hit when its speed is 42 m/s?

10. How much work is done on the ball by the club?
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Jaelynn Todd
PhysicsPhysics
Which scientist proposed the idea of a sun-centered solar system instead of an earth-centered solar system?
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Asia Riley
PhysicsPhysics
What is the centripetal force needed to keep a 3.0 kg mass moving in a circle of radius 0.50 m at a speed of 8.0 m/s
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Jordan Hensley
PhysicsPhysics
Which physical trait is most likely to be influenced at least partly by environment?

A) height

B) hair color

C) weight

D) eye color
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Damion Alvarado
PhysicsPhysics
During exponential growth, the rate of growth

A. declines consistently over time.

B. starts quickly and then levels off.

C. remains steady over time.

D. starts slowly and then accelerates.
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