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PilotLPTM [1.2K]
3 years ago
13

Giving brainliest!! if you answer correctly :)

Physics
1 answer:
AleksandrR [38]3 years ago
5 0

Answer:

Mechanical Energy- D

Nuclear Energy- C

Thermal Energy- A

Chemical Energy- B

Explanation:

Hope this helps :)

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The diagram below shows the movement of matter in a portion of the water cycle.
Alisiya [41]

Answer:

d) precipitation

Hope it helps you

And if you want to, pls mark it as the brainliest answer

7 0
3 years ago
A 2000 Hz siren and a civil defense official are both at rest with respect to the ground. What frequency does the official hear
astra-53 [7]

Answer:

a)f_1 = 2070.6 Hz

b)f_2 = 1929.4 Hz

Explanation:

Apparent frequency of the siren is given as

f = \frac{v_{rel}}{\lambda}

as we know that the wavelength will remain the same as it is having originally

sowe know

\lambda = \frac{340}{2000}

\lambda = 0.17 m

a) Now when wind is blowing from source to official

so we have

v_{rel} = 340 + 12 = 352 m/s

so we have

f_1 = \frac{352}{0.17}

f_1 = 2070.6 Hz

b) Now when wind is from official to source

so we have

v_{rel} = 340 - 12 = 328 m/s

so we have

f_2 = \frac{328}{0.17}

f_2 = 1929.4 Hz

4 0
4 years ago
A gardener uses 2700 J of work to push a wheelbarrow for 60 seconds. How much power does she use?
Phantasy [73]

Answer:

I think 90 w I am not sure but I think it is right

I hope it is helpful for u

5 0
3 years ago
Read 2 more answers
Does pressure change faster as you move horizontally or vertically? explain reasoning
ANTONII [103]

Answer:

Vertically

Explanation:

Pressure changes faster as we move vertically because as we go to the height from the surface of the earth. The density of air becomes lesser in comparison with the surface of the earth. So, as we move vertically pressure moves faster than in comparison with the vertical movement.

The best example that describes the above statement is the hill station.  

3 0
3 years ago
If the mass of both weights is 150 gm, the first mass is located 25° north of east, the second mass is located 25° south of east
Pani-rosa [81]

Answer:

voltage is 1.38 V

Explanation:

given data

weights = 150 gm = 0.150 kg

sensitivity = 0.5 volts/Newton

to find out

large a voltage

solution

we know here in by symmetry so here in x axis

F3 will be

F3 = 2mgcos(20)

F3 = 2(0.150)(9.8)cos20

F3 = 2.76 N

so volatge is

voltage = 2.76×sensitivity

voltage = 2.76×0.5

voltage = 1.38

so voltage is 1.38 V

8 0
4 years ago
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