3 years ago

A rock excerts a pressure of 20 N/cm^2 on the ground. what does 20N/cm^2 mean?

Physics

1 answer:

Lelechka [254]3 years ago

6 0

Answer:

A force of 20N acts on each cm^2 of area

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3 years ago

An 880n box is pushed across a level floor for a distance of 5.0m with a force of 440n. how much work was done on the box

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3 years ago

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2 years ago

Two resistors R1 = 3 Ω and R2 = 6 Ω are connected in parallel. What is the net resistance in the circuit?

gtnhenbr [62]

Answer:

"2Ω" is the net resistance in the circuit.

Explanation:

The given resistors are:

R1 = 3Ω

R2 = 6Ω

The net resistance will be:

⇒ $\frac{1}{R_{net}} =\frac{1}{R_1} +\frac{1}{R_2}$

On substituting the values, we get

⇒ $\frac{1}{R_{net}} =\frac{1}{3} +\frac{1}{6}$

On taking L.C.M, we get

⇒ $\frac{1}{R_{net}} =\frac{2+1}{6}$

⇒ $\frac{1}{R_{net}} =\frac{3}{6}$

⇒ $\frac{1}{R_{net}} =\frac{1}{2}$

On applying cross-multiplication, we get

⇒ $R_{net}=2 \Omega$

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3 years ago