Answer:
Option B
It converts light into electric current
Explanation:
A photometer is a device used to measure illuminance
Its principle of operation hinges on the conversion of light into electric current, using photoresistor or any other light sensitive device such as a photodiode. This is so that it can be read off easily by any other device.
A Photoresistor is a device that changes the flow of current through it when it is exposed to light rays. A photometer works by irradiating a photo resistor, which then converts the light rays incident on it to electric current.
Answer:
<h2>2 N</h2>
Explanation:
The force engine exert on the car can be found by using the formula
w is the workdone
d is the distance
From the question we have
We have the final answer as
<h3>2 N</h3>
Hope this helps you
<span>The melting and freezing points of a substance are the same.
Substances melt and freeze at the same temperature. Hope this helps! :)</span>
The calorie was originally defined as the amount of heat required at a pressure of 1 standard atmosphere to raise the temperature of 1 gram of water 1° Celsius. ... Since 1925 this calorie has been defined in terms of the joule, the definition since 1948 being that one calorie is equal to approximately 4.2 joules.
Answer:C
Explanation:
Given
Overload mass =90 Pounds
and 1 Pound=0.453 kg
90 Pounds=40.823 kg
Density of Gasoline 
Volume of Gasoline for this mass 
and 
is equal to 264.172 Gallon
therefore 0.05451 m^3 is equal to 14.40 Gallons which is approximately equals to 15 Gallon
