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3 years ago

What is the part of the steam engine that does the work? A. The flywheel B. The cylinder C. The piston D. The turbine

Physics

2 answers:

pav-90 [236]3 years ago

5 0

C. The piston

The steam engine is a heat engine that performs mechanical work using steam. The steam engine uses the force produced by steam pressure to push the piston back and forth.

antoniya [11.8K]3 years ago

5 0

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Expalin how waves energy and matter are related

emmasim [6.3K]

They are related because waves affect matter. Reflection, refraction, and diffraction. Reflection occurs when wave bounces back from a surface that they cannot pass through. Refraction occurs when waves bend as they enter a new medium at an angle and start traveling at a different speed.

8 0

3 years ago

Calculate the total resistance in a parallel circuit made up of resistances of 2Ω, 3Ω, and 4Ω. (Hint: When converting to a decim

natta225 [31]

Answer:

Total resistance = 0.92Ω

Explanation:

For parallel connected resistors we have effective resistance

$\frac{1}{R_{eff}}=\frac{1}{R_1}+\frac{1}{R_2}+\frac{1}{R_3}+.....$

Here parallel circuit made up of resistances of 2Ω, 3Ω, and 4Ω.

That is

R₁ = 2Ω

R₂ = 3Ω

R₃ = 4Ω

Substituting

$\frac{1}{R_{eff}}=\frac{1}{R_1}+\frac{1}{R_2}+\frac{1}{R_3}\\\\\frac{1}{R_{eff}}=\frac{1}{2}+\frac{1}{3}+\frac{1}{4}\\\\\frac{1}{R_{eff}}=\frac{6+4+3}{12}\\\\R_{eff}=\frac{12}{13}=0.92ohm$

Total resistance = 0.92Ω

6 0

3 years ago

52.887 in significant figures

Anastasy [175]

Answer:

There are 5 significant figures in 52.887

5, 2, 8, 8, 7 --> all of these numbers are considered significant.

5 0

3 years ago

Which pair of factors affects the force of gravity between objects?

butalik [34]

Answer:

mass and distance

Explanation:

dont need to summary this

5 0

3 years ago

A woman stands on a bathroom scale in a motionless elevator. When the elevator begins to move, the scale briefly reads only 0.90

kiruha [24]

Answer:

1 m/s² down

Explanation:

"Calculate the acceleration of the elevator, and find the direction of acceleration."

Sum of forces in the +y direction:

∑F = ma

N − mg = ma

0.9 mg − mg = ma

-0.1 mg = ma

a = -0.1 g

a = -1 m/s²

6 0

3 years ago