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Finger [1]
3 years ago
14

Work and power!

Physics
1 answer:
Tema [17]3 years ago
5 0

Answer:

The work done in a unit of time is C. Power.

Explanation:

Hope this helps

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Differentiate can you help me plzzzzzzz​
Schach [20]

Explanation:

Acceleration and the other term are the same physical phenomenon - just with opposite affects. Acceleration increases velocity, while the other term that begins with the letter "R" reduces.

***(Brainly's language filter is blocking the use of the second term in my answer.)***

Acceleration is defined as the rate of change of the velocity of an object per unit of time...

a = \frac{dv}{dt}

Acceleration would be a POSITIVE (+) quantity, while the r-word would be negative (-).

4 0
3 years ago
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Answer:

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Explanation:

4 0
3 years ago
Dr. james van allen and his group of united states scientists discovered a set of ___________.
Lubov Fominskaja [6]
The answer is Radiation Belts.
6 0
4 years ago
Read 2 more answers
A proton moves through a region of space where there is a magnetic field B⃗ =(0.64i+0.40j)T and an electric field E⃗ =(3.3i−4.5j
fenix001 [56]

Answer:

F = (8.35 \times 10^{-16})\hat i - (12.12 \times 10^{-16})\hat j +(1.35 \times 10^{-16})\hat k

Explanation:

When a charge is moving in constant magnetic field and electric field both then the net force on moving charge is vector sum of force due to magnetic field and electric field both

so first the force on the moving charge due to electric field is given by

\vec F_e = q\vec E

\vec F_e = (1.6 \times 10^{-19})(3.3 \hat i - 4.5 \hat j) \times 10^3

\vec F_e = (5.28 \times 10^{-16}) \hat i - (7.2 \times 10^{-16}) \hat j

Now force on moving charge due to magnetic field is given as

\vec F_b = q(\vec v \times \vec B)

\vec F_b = (1.6 \times 10^{-19})((6.6 \hat i+2.8 \hat j−4.8 \hat k) \times 10^3 \times (0.64 \hat i + 0.40 \hat j) )

\vec F_b = (4.22 \times 10^{-16})\hat k - (2.87 \times 10^{-16})\hat k - (4.92 \times 10^{-16})\hat j + (3.07 \times 10^{-16}) \hat i

\vec F_b = (3.07\times 10^{-16})\hat i - (4.92 \times 10^{-16})\hat j + (1.35 \times 10^{-16})\hat k

Now net force due to both

F = F_e + F_b

F = (8.35 \times 10^{-16})\hat i - (12.12 \times 10^{-16})\hat j +(1.35 \times 10^{-16})\hat k

7 0
3 years ago
Why is a diver under water unable to hear sound produced in air?<br>​
defon

Answer:

Because the surface tension of the water does not allow the sound waves in the air to pass through.

Explanation:

Please mark as brainliest. :) :D :3

5 0
3 years ago
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