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Which of the following is the best hypothesis? A. The size of ice crystals in clouds depends on the air temperature. B. It is fun to fly an airplane through large cumulus clouds., C. How big can ice crystals

Adamnickerson asked Jul 28, 2023

by Adamnickerson

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1 answer

5 votes

200k views

How does the speed of light traveling through a medium (such as air or glass) compare to the speed of light in a vacuum

Chrsblck asked Jul 28, 2023

by Chrsblck

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1 answer

3 votes

64.5k views

A rock is thrown off a cliff with a speed of 5 m/s downward. How far will it fall after 7 seconds have elapsed?y = yo + vo t + ½ a t 2 g = 9.8 m/s2 (downward)

Ronny Vindenes asked Jul 28, 2023

by Ronny Vindenes

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1 answer

4 votes

115k views

I need help with the one that is talking about a horizontal force of 89.7 NShown in the picture below

Nick Bork asked Jul 28, 2023

by Nick Bork

7.0k points

1 answer

4 votes

120k views

How does nuclear reaction occur in the sun

Rvimieiro asked Jul 28, 2023

by Rvimieiro

6.3k points

2 answers

2 votes

136k views

An oil film (n = 1.42) floating on water is 264 nm thick. What is the second longest (m = 2) wavelength IN NANOMETERS that reflects brightlyfrom the film?(Hint: If you leave the wavelength in nm, the answer

Luis Abreu asked Jul 28, 2023

by Luis Abreu

6.1k points

1 answer

3 votes

37.8k views

A car has a mass of 1000 kg. What is the acceleration produced by a force of 2000 N? Newton's 2nd Law of Motion states: F = ma

Kuhajeyan asked Jul 28, 2023

by Kuhajeyan

7.3k points

1 answer

15 votes

167k views

1.What happens when ice cubes melt in a glass? a No energy is transferred. B Heat travels from the ice to the warmer water. C The water warms up due to the humidity D Heat is transferred from the warmer

Maurice Tempelsman asked Jul 28, 2023

by Maurice Tempelsman

6.5k points

1 answer

4 votes

105k views

What is the current in milliamperes produced by the solar cells of a pocket calculator through which 6.90 C of charge passes in 3.50 h?

Dxx asked Jul 28, 2023

by Dxx

7.2k points

1 answer

1 vote

12.0k views

A bullet of mass 32g is fired from a gun. The graph above shows the variation of the force F on the bullet with time T as it travels along the barrel of the gun. The bullet is fired at time T=0 and the

MJP asked Jul 28, 2023

by MJP

6.1k points

2 answers

1 vote

209k views

A 10kg rock and a 20 kg rock are dropped from the same height. If the takes the 20 kg rock a time t to reach the ground. What time will it take the 10 kg rock to reach the ground?

JHurrah asked Jul 28, 2023

by JHurrah

6.0k points

1 answer

0 votes

32.3k views

If the cable CB is horizontal and the beam is at rest in the position shown, determine the tension in the cable at the instant the towing force F=1500 N is applied. The coefficient of friction between

Marthijn asked Jul 28, 2023

by Marthijn

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1 answer

5 votes

144k views

You are part of a police unit that has found a powder in a suspect's home. You think it might be a new drug called XYZ. XYZ is an ionic compound that dissolves in water. However, what you think might be

Rixo asked Jul 28, 2023

by Rixo

6.7k points

1 answer

25 votes

89.2k views

An electric motor is used to run an elevator. The total mass of the elevator car and passenger is 1600 kg. The elevator moves upward a distance of 15.0 m in 8.82 s at a constant speed. What is the power

JATMON asked Jul 28, 2023

by JATMON

6.6k points

1 answer

20 votes

95.1k views

How does forces affect the acceleration of a body

SklogW asked Jul 28, 2023

by SklogW

6.6k points

1 answer

11 votes

26.4k views

If 500 J of energy is added to a 20 kg sample of copper, what is the increase in temperature? The specific heat of copper is 387 J/kg*C.

Baximilian asked Jul 28, 2023

by Baximilian

6.3k points

1 answer

13 votes

171k views

2. A two-winding transformer with a laminated core is shown in the Figure. The winding with N1=200 turns is connected to a voltage to produce a flux density in the core B=1.2Âsin377t. The second winding,

Uri asked Jul 28, 2023

by Uri

6.5k points

1 answer

3 votes

85.4k views

Adrian plays basketball with Kevin on a basketball court that is completely level. After Adrian makes as basket, their ball rolls to a complete stop. what forces acted on the ball to cause it to stop rolling?

Paulo Freitas asked Jul 28, 2023

by Paulo Freitas

5.8k points

2 answers

13 votes

221k views

What are the defining characteristics of matter A Mass and time B Mass and volume C Mass and space D volume and motion

Ryaner asked Jul 28, 2023

by Ryaner

6.9k points

1 answer

5 votes

112k views

I have no clue on what to do

Guillaume Boschini asked Jul 28, 2023

by Guillaume Boschini

7.1k points

1 answer

5 votes

192k views

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