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A ball was positioned in the middle of a smooth ramp and allowed to roll downward. How does the total mechanical energy of the ball at the bottom of the ramp compare to its total mechanical energy before

Michael Lihs asked Oct 18, 2024

by Michael Lihs

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When water evaporates from a surface, which of the following occurs? Energy is stored within the water. Energy is released to the surface. Energy flows into the ground by conduction. The surface is warmed.

Arthur Silva asked Oct 18, 2024

by Arthur Silva

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1 vote

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Which of the following are valid ways of stating the 2nd law of thermodynamics? a) Energy cannot be created or destroyed. b) Heat flows from a hot object to a cold object. c) Entropy increases in an isolated

Reza Shoja asked Oct 18, 2024

by Reza Shoja

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3 votes

47.0k views

A thin lens has a focal length of 5 cm. At a distance of 9 cm from the lens, there is a stuffed animal. What would be the image distance? Group of answer choices 11 cm 4 cm −4 cm −14 cm

Digital asked Oct 18, 2024

by Digital

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3 votes

27.1k views

How does Nuclear Fusion play a role in the Big Bang? a. Protons fused into Electrons in the early universe oshnl emed b. Hydrogen and Helium were the first two elements to form because of Big Bang c. Nuclear

CREcker asked Oct 18, 2024

by CREcker

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4 votes

81.2k views

Electric generators and electric transformers depend on electromagnetic induction. TRUE FALSE

Imox asked Oct 18, 2024

by Imox

8.2k points

1 answer

4 votes

88.6k views

What does our Sun mostly consist of? a) Mostly solid rock and metal b) Mostly gases, primarily hydrogen and helium c) Mostly liquid water d) Mostly dark matter

Padma Kumar asked Oct 18, 2024

by Padma Kumar

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5 votes

164k views

A fish swims with a velocity of 1 m/s. It then uniformly increases its velocity to 3 m/s in 6 seconds. What is the fish's acceleration? O 1 m/s O 1 1/2 m/s O 2 m/s² O 1/3 m/s²

Panzerschreck asked Oct 18, 2024

by Panzerschreck

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1 answer

4 votes

75.0k views

Which term best goes with this definition? ____ is when unlike charges pull together in a straight line. a) Electricity b) Attraction c) Repulsion d) Current

Efie asked Oct 18, 2024

by Efie

9.2k points

1 answer

1 vote

88.2k views

An air tracker attached to a spring oscillates between 15 cm mark and 65 cm makes on the track. What is the frequency and amplitude

Casimiro asked Oct 18, 2024

by Casimiro

8.3k points

1 answer

0 votes

99.6k views

Because of the anode heel effect, the intensity of the x-ray beam is greatest along the cathode end of the beam

Montreal asked Oct 18, 2024

by Montreal

9.1k points

1 answer

0 votes

165k views

Thinking about the elevator ride, do you feel heavier or lighter at the top of a hill on a rollercoaster? Do you feel heavier or lighter at the bottom of a hill on a rollercoaster?

Prashank asked Oct 18, 2024

by Prashank

7.9k points

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2 votes

189k views

A small ball of mass m is thrown upward with velocity u from the ground. The ball experiences a resistive force mkv², where v is its speed. The maximum height attained by the ball is: (a) mu/g (b) mu/2g

Christian Legge asked Oct 18, 2024

by Christian Legge

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1 answer

0 votes

120k views

A golf ball is thrown straight up in the air at a velocity of 8.3 m/s. Determine the maximum height of the golf ball. A) 6.4 m B) 3.5 m C) 4.2 m D) 8.3 m

Letta asked Oct 18, 2024

by Letta

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4 votes

36.6k views

When two particles with like charged become farther apart, is energy added or released? a) Energy is added b) Energy is released c) No change in energy d) Energy depends on the charge magnitude

Taylorthurlow asked Oct 18, 2024

by Taylorthurlow

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1 answer

4 votes

94.1k views

You need to move a 105 kg sofa to different location in the room. it takes a 403 N to start the sofa moving. what is the coeffecient of static friction between the sofa and the carpet?

Dennis Ziolkowski asked Oct 18, 2024

by Dennis Ziolkowski

8.0k points

1 answer

2 votes

61.8k views

Less --- is needed to move an object from one height to another using an inclined plane than is needed to lift the object. a) Mass b) Weight c) Distance d) Force

Kavindra asked Oct 18, 2024

by Kavindra

8.5k points

1 answer

1 vote

85.2k views

The atmospheric motions are distinguished by various scales, the typical size of the synoptic scale usually covers:_____

James Strieter asked Oct 18, 2024

by James Strieter

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1 vote

212k views

Insulators (nonmetals) have a higher BE than metals, and it is more difficult for photons to eject electrons from insulators. Discuss how this relates to the free charges in metals that make them good

Floris M asked Oct 18, 2024

by Floris M

8.7k points

1 answer

2 votes

105k views

Simple squamous epithelial tissue called____ forms the inner linings of the tunica interna of blood vessels.

Plv asked Oct 18, 2024

by Plv

8.5k points

1 answer

4 votes

157k views

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