Answers
b) do the same thing as a except use 5m instead of 10m which gives you 2500N
c) the potential energy is transferred to kinetic since he’s at bottom of hill of mechanical energy. so kinetic energy would be 5000J since that’s the mechanical energy since at top of hill there’s 0 kinetic, making all the potential the same as the mechanical
Related Questions
HELP PLEASE!!!!!
As radiation from the sun reaches the earth, the energy is-
A ) Immediately radiated back into space.
B ) Absorbed by only the oceans
C ) Radiated, reflected, and absorbed
D ) Only reflected by clouds in the atmosphere
Answers
Answer:C
Explanation:All of the energy from the Sun that reaches the Earth arrives as solar radiation, part of a large collection of energy called the electromagnetic radiation spectrum. Solar radiation includes visible light, ultraviolet light, infrared, radio waves, X-rays, and gamma rays. Radiation is one way to transfer heat.
Answer: A) The amount of heat radiated from the atmosphere to the surface (sometimes called “back radiation”) is equivalent to 100 percent of the incoming solar energy.
B)On its northward journey, the water at the surface absorbs gases like carbon dioxide and chlorofluorocarbons (CFCs) – the latter are, to a large extent, the gases responsible for the ozone hole over Antarctica – as well as excess heat from the atmosphere
C)Water droplets and ice crystals that make up clouds scatter light equally at all wavelengths and therefore appear white. Reflection of solar radiation occurs when the radiation is sent directly backward from a surface. The fraction (or percentage) of radiation reflected back is known as albedo.
D)Clouds cool Earth's surface by reflecting incoming sunlight. ... Clouds warm or cool Earth's atmosphere by absorbing heat emitted from the surface and radiating it to space. Clouds warm and dry Earth's atmosphere and supply water to the surface by forming precipitation
Explanation:
PLS HELP 30 POINTS IF U HELP
Evaluate (Two-fifths) cubed. Check all that apply.
The exponent is Two-fifths.
The expanded form is (Two-fifths) (two-fifths) (two-fifths).
The expanded form is StartFraction 2 times 2 times 2 Over 5 EndFraction.
(Two-fifths) cubed = StartFraction 6 Over 15 EndFraction
(Two-fifths) cubed = StartFraction 8 Over 125 EndFraction
Answers
Answer:
its D so yeah.........
Explanation:
tell me if it's wrong
Explain where you observe reflection, refraction, and absorption of light in your everyday activities (10 points)
Answers
Answer:
Reflection: looking in window reflection. Refraction: You put a straw in a glass of water, and it looks like it broke. Absorption: If you have a black sweater and you wear it out in the cold, the black sweater is going to hold in heat better than a lighter sweater because the black sweater absorbs light .
i tried
Which of the following is an example of balanced forces?
A.
A light bulb filament glows when a current moves through a wire.
B.
A person in a hot air balloon ignites the burner, which makes the balloon rise.
C.
A seesaw remains stationary when two students of equal weight sit on the ends.
D.
A driver slams on the car brake, and the car comes to a stop.
Answers
A seesaw remains stationary when two students of equal weight sit on the ends
c
Answer:
the answer is c.
Explanation:
a balanced force is a constant motion, or when the object does not move. because the children have the same weight, they can manage the seesaw to stay still.
When forces are pointing in the same direction what operation do we use to get the net force? *
Answers
Answer:
If two forces act on an object in the same direction, the net force is equal to the sum of the two forces.
Explanation:
i hope this helped
Help plz, answer all
1. What impact did Portugal have on Latin America? Is it still evident today?
2. How did African slavery change the culture of much of the Caribbean and South America?
3. How did Spain have a dramatic impact on most of Latin America that is still evident today?
Answers
Answer:
Explanation:
1: Portugal still greatly impacts Latin America, specifically Brazil. One of Brazil's official languages is Portuguese
2: Slavery has also greatly impacted the Caribbean and Latin America, with many people being of African descent in this countries, and countries like Haiti were created because of slavery.
3: Spain pretty much created Latin America, because most countries were colonized by Spain, and much of Spanish culture and the Spanish language remains.
***URGENT***** The sky looks like the picture below... When you read the barometer, you see the air pressure is getting much higher... How will the weather probably change? *
It will get much cloudier. Maybe a storm.
There will be less clouds. Probably clear skies.
There won't be any major change.
It's impossible to tell from that information.
Answers
Answer:
t
Explanation:
it will be less clouds. probably clear skies.
Which of the following is an example of balanced forces?
A.
A light bulb filament glows when a current moves through a wire.
B.
A person in a hot air balloon ignites the burner, which makes the balloon rise.
C.
A seesaw remains stationary when two students of equal weight sit on the ends.
D.
A driver slams on the car brake, and the car comes to a stop.
Answers
Balanced forces is when is pretty much when no motion is happening
in your own words, explain how solar heating works
Answers
Answer:
active solar heating systems use solar energy to heat a fluid either liquid or air and then transfer the solar heat directly to the interior space or to a storage system for later use. If the solar system cannot provide adequate space heating, an auxiliary or back-up system provides the additional heat.
hope this helps : )
Hope this helps! :D
Define the word logrolling in your own words?
Answers
Answer:
Logrolling is the practice of legislators exchanging favors, or quid pro quo, such as vote trading, in order to enact legislation that is of interest to each of them.
OAmalOHopeO