All categories

3 years ago

Help me and you will meet your favorite singer at your door.

Physics

2 answers:

ser-zykov [4K]3 years ago

7 0

Answer:

"Sunlight, because it provides a source of energy"is the answer because plants provide a food source.

Explanation:

The person up top was right take their word not mine

Goshia [24]3 years ago

4 0

Sunlight, because it provides a source of energy is the answer because plants also provide a food source (please put as brainliest answer)

You might be interested in

How do magnets work?

Ainat [17]

How do magnets workssss?

5 0

4 years ago

Read 2 more answers

The world speed record on water was set on October 8, 1978 by Ken Warby. If Ken drove his motorboat a distance of 1500 m in 8.10

maxonik [38]

Answer:

317.52 mi/hr

Explanation:

First convert Meters into miles as the answer is required in miles/ h

1000m = 0.62 mi

Now, convert second into hours

7.45s = 0.0001 hr

The speed of the boat would be

v = 0.62/0.0001

=317.52 mi/hr

3 0

3 years ago

Which category of mechanical waves are produced during an earthquake?

andre [41]

Answer:

The answer is C. Seismic waves.

Explanation:

<u>Seismic waves are waves of energy that travel through Earth's layers, and are a result of earthquakes.</u>

3 0

2 years ago

A boulder of mass 2000. kg breaks loose of a mountainside and plunges 200. m straight down into a lake at a temperature of 5.00◦

natka813 [3]

Answer:

DS = 13865.7[J/K]

Explanation:

We can calculate the energy of the rock, like the potential energy relative to the lake level. Which can be calculated by means of the following expression of the potential energy:

$E_{p}=m*g*h\\\\where:\\m = mass = 2000[kg]\\h = elevation = 200 [m]\\g = gravity = 9.81[m/s^2]$

Therefore:

$E_{p}=2000*9.81*200\\E_{p}=3924000 [J]\\$

This energy is transformed into thermal energy.

we shall remember that isothermal heat transfer processes are internally reversible, so the entropy change of a system during one of these processes can be determined, by the following expression.

$DS=\frac{Q}{T}\\ where:\\DS = entropy change [J/K]\\Q = Heat transfer [J]\\T = temperature [K]$

T = 5 + 278 = 283[K]

DS = 3924000 / 283

DS = 13865.7[J/K]

5 0

3 years ago

Europa is one of the moons that revolve around Jupiter. A thick sheet of ice covers its entire surface. Many scientists believe

Bess [88]

Water vapor clouds that are breaking out of Europe’s surface, water is the basis of life so this would support the idea that there is life

8 0

3 years ago