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yuradex [85]
2 years ago
6

What does the abbreviation DC stand for in physics? A.direct charge B.dark circuit C.direct current D. drop charge

Physics
1 answer:
Butoxors [25]2 years ago
3 0

direct current I'm positive


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A car that brakes suddenly comes to a screeching halt. Is the sound energy produced in this conversion a useful form of energy?
Nezavi [6.7K]

Answer:

No, the sound produced by screeching brakes is not a useful form of energy, because it does not contribute to stopping the car.

7 0
1 year ago
A wire is formed into a circle having a diameter of 11.1 cm and is placed in a uniform magnetic field of 2.79 mT. The wire carri
Ber [7]

Answer:

Maximum torque on the wire is 1.34\times 10^{-4}\ N-m

Explanation:

It is given that,

Diameter of the wire, d = 11.1 cm = 0.111 m

Radius of wire, r = 0.0555 m

Magnetic field, B=2.79\ mT=0.00279\ T

Current, I = 5 A

We need to find the maximum torque on the wire. Torque is given by :

\tau=IAB\ sin\theta

Torque is maximum when, \theta=90

\tau=IAB

\tau=5\times \pi \times (0.0555)^2\times 0.00279

\tau=0.000134\ N-m

or

\tau=1.34\times 10^{-4}\ N-m

So, the maximum toque on the wire is 1.34\times 10^{-4}\ N-m. Hence, this is the required solution.

6 0
1 year ago
Throwing a football is what type of energy
Finger [1]

Answer:

Chemical potential energy

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3 0
2 years ago
Read 2 more answers
A truck driver is attempting to deliver some furniture. First, he travels 8 km East, and then he turns around and travels 3 km W
svp [43]
Refer to the diagram below.

Let A =  the starting point.
Let B =  the destination.
Let travel east be positive, and travel west be negative.

Then the total travel is
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Answer: 18 km

5 0
1 year ago
Help me with this question
mariarad [96]

Explanation:

Escape velocity is the point at which the kinetic energy is equal to the gravitational potential energy.

KE = PE

½ mv² = mgh

½ mv² = m (GM/r²) (r)

½ mv² = GMm/r

½ v² = GM/r

v = √(2GM/r)

The escape velocity is independent of the mass of the spacecraft.  So the escape velocity will be the same for both X and Y.

4 0
2 years ago
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