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2 years ago

What is a temperature where the vapor pressure of a liquid equals the atmospheric pressure.

1 answer:

5 0

The temperature where vapour pressure equals atmospheric pressure is called BOILING POINT. This vapour pressure increases with rise in temperature. Also boiling point is different for different liquids. Hope I cleared your doubt...

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In a circuit, a variable resistor is to be connected across a potential difference of 60 volts to allow the current to be adjust

sweet [91]

Answer:

600 and 1500 [ohm

Explanation:

To solve this problem we must use ohm's law, which tells us that the voltage is the product of the current by the resistance, so we have:

V = I*R

where:

V = voltage [V]

I = current [amp]

R = resistance [ohm]

<u>Therefore:</u>

R = V/I

R1 = 60/(40*10^-3) = 1500 [ohm]

R2 = 60/(100*10^-3) = 600 [ohm]

So the resistance should be among 600 and 1500 [ohm]

4 0

3 years ago

The speed of light in a vacuum is approximately 2.99 × 108 m/s, and the speed of light through a piece of glass is approximately

labwork [276]

The answer is 1.52.

N = C (speed of light) / actual speed

n = index of refraction

6 0

2 years ago

Read 2 more answers

ASAP! What examples of resources can you give that can be classified as both material resources and energy resources? if u answe

natulia [17]

Wood because it is natural and we use it for furniture but we also burn it for energy.

4 0

3 years ago

A roller coaster has a 100.0 kg cart at the top of a 22.0 m ramp. As it goes down the ramp, it change 800.0 joules of energy to

AlekseyPX

Answer:

d.20760 J

Explanation:

We are given that

Mass of cart=m=100 kg

At the top,h=22 m

Amount of energy convert into heat due to friction=E=800 J

We have to find the kinetic energy at the bottom of the ramp.

Potential energy drop=mgh= $100\times 9.8\times 22=21560 J$

Kinetic energy at the bottom=Potential energy drop-energy lost due to friction

Kinetic energy at the bottom =(21560-800) J

Kinetic energy at the bottom=20760 J

Hence, the kinetic energy at the bottom of the ramp=20760 J

d.20760 J

5 0

2 years ago

With a speed of 75 m sl. Determine

lana [24]

Answer:

120000 kgxm/s

Explanation:

momentum is mass times velocity so just multiply 1600 kg times 75 m/s and you get 120000 kgxm/s

6 0

3 years ago