3 years ago

Which of the following describes resistance force?

Physics

2 answers:

Shtirlitz [24]3 years ago

6 0

A strong power against doing something.

Resistance- not willing ; against

Force- power; strong thing

Verdich [7]3 years ago

5 0

Force applied by the machine to over come resistance

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a 2100-kg car drives with a speed of 18 m/s onb a flat road around a curve that has a radius of curvature of 83m. The coefficien

Law Incorporation [45]

Answer:

The magnitude of the friction force is 8197.60 N

Explanation:

Using the definition of the centripetal force we have:

$\Sigma F=ma_{c}=m\frac{v^{2}}{R}$

Where:

m is the mass of the car
v is the speed
R is the radius of the curvature

Now, the force acting in the motion is just the friction force, so we have:

$F_{f}=m\frac{v^{2}}{R}$

$F_{f}=2100\frac{18^{2}}{83}$

$F_{f}=8197.60 \: N$

Therefore the magnitude of the friction force is 8197.60 N

I hope it helps you!

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sergeinik [125]

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2 years ago

How will you join three resistances, each of 2 ohm so that the effective resistance is 3 ohm?

svet-max [94.6K]

First I will parallel two of the resistors, creating a net 1 ohm. Then I will series that with the remaining 2-ohm resistor, resulting in 3 ohms.

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2 years ago

Which of the following is an example of exothermic reaction?

Katarina [22]

Explanation:

Exothermic reaction are those in which heat releases during a reaction

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