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3 years ago

A tension-force replaces what objects when creating a Free Body Diagram?

Physics

1 answer:

algol133 years ago

3 0

Answer:

Option C D and E

chains cables and ropes.

Explanation:

A free body diagram is a simple sketch showing the forces acting on objects in a physical system.

Usually tensile forces are those forces that occur on objects that are pulled by a force. To get the correct answer choices we need to identify the objects that are most likely to be pulled by a force in any physical system. Such objects from our options include: chains cables and ropes.

This means that whenever these are acting in a physical system, they are mostly used in tension.

Consequently, whenever a free body diagram of such system is drawn, chains cables and ropes.are usually replaced by tension force arrows

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2 years ago

A series combination of two resistors, 7.25 ω and 4.03 ω, is connected to a 9.00 v battery.

almond37 [142]

a. $11.28\Omega$

The equivalent resistance of a series combination of two resistors is equal to the sum of the individual resistances:

$R_{eq}=R_1 + R_2$

In this circuit, we have

$R_1 = 7.25 \Omega\\R_2 = 4.03 \Omega$

Therefore, the equivalent resistance is

$R_{eq}=7.25 \Omega + 4.03 \Omega=11.28 \Omega$

b. 5.8 V, 3.2 V

First of all, we need to determine the current flowing through each resistor, which is given by Ohm's law:

$I=\frac{V}{R_{eq}}$

where V = 9.00 V and $R_{eq}=11.28 \Omega$ . Substituting,

$I=\frac{9.00 V}{11.28 \Omega}=0.8 A$

Now we can calculate the potential difference across each resistor by using Ohm's law again:

$V_1 = I R_1 = (0.8 A)(7.25 \Omega)=5.8 V$

$V_2 = I R_2 = (0.8 A)(4.03 \Omega)=3.2 V$

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2 years ago

An electric device, which heats water by immersing a resistance wire in the water, generates 50 cal of heat per second when an e

Oksi-84 [34.3K]

Answer:

0.69 ohm

Explanation:

Heat generated per second, H = 50 cal/s

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Let R is the resistance of coil.

The formula for the heat is given by

$H = \frac{V^{2}}{R}t$

$50\times 4.186 = \frac{12^{2}}{R}\times 1$

R = 0.69 ohm

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3 years ago

Descibe the real-world examples of Newton's third lawthat were idenified in "Applications of Newton's Laws."

ehidna [41]

Answer:

A horse pulls a cart, a person walks on the ground

Explanation:

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2 years ago

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KATRIN_1 [288]

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   = 1.8 x 10¹³ miles (rounded to the nearest trillion miles)

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3 years ago