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3 years ago

When helping someone whose car has a "dead" battery, how should your car's battery be connected in relation to the dead battery?

Physics

1 answer:

leonid [27]3 years ago

8 0

Positive terminal with Positive terminal. The negative terminal should be connected to the car chassis.

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What direction does the medium vibrate

slega [8]

a direction perpendicular to the direction of propagation of the wave, it is called a transverse wave.

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2 years ago

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an athlete whirls an 8.71 kg hammer tied to the end of a 1.5 m chain in a simple horizontal circle where you should ignore any v

-BARSIC- [3]

Answer:

T = 692.42 N

Explanation:

Given that,

Mass of hammer, m = 8.71 kg

Length of the chain to which an athlete whirls the hammer, r = 1.5 m

The angular sped of the hammer, $\omega=1.16\ rev/s=7.28\ rad/s$

We need to find the tension in the chain. The tension acting in the chain is balanced by the required centripetal force. It is given by the formula as follows :

$F=m\omega^2r\\\\=8.71\times (7.28)^2\times 1.5\\\\=692.42\ N$

So, the tension in the chain is 692.42 N.

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2 years ago

What is the difference between: first moment of area and second moment of area?

zhannawk [14.2K]

To determine the centroid of the object first moment of area is used.

To predict the resistance of a shape to bending and deflection which are directly proportional, second moment of area is used.

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3 years ago

Interference occurs with not only light waves but also all frequencies of electromagnetic waves and all other types of waves, su

telo118 [61]

Answer

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Step-by-step explanation:

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3 years ago

Which way does current always flow?

Phoenix [80]

Answer:

Electrons move through the wires in the opposite direction.

Explanation:

The direction of an electric current is by convention the direction in which a positive charge would move. Thus, the current in the external circuit is directed away from the positive terminal and toward the negative terminal of the battery.

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2 years ago