Answer:
The equipment to use is: a beaker, a fixed amount of water, a thermometer.
The mass of water, the time, the temperature for each time should be noted and a graph of Temperature versus time should be made
Explanation:
The design of an experiment is to place the beaker in the microwave, with a good amount of water (approximately ⅔ of its capacity) and turn it on for small periods of time, generally the minimum is 30 s, quickly open the microwave, place a thermometer or better yet an infrared thermometer to measure the temperature of the water; repeat this several times.
The advantage of the infrared thermometer is that it reduces the transfer of heat between the water and the thermometer.
The mass of water, the time, the temperature for each time should be noted and a graph of Temperature versus time should be made.
The equipment to use is: a beaker, a fixed amount of water, a thermometer.
The main precaution that must be taken is not to open the microwave while it is on.
Answer:
Common temporary magnets include nails and paperclips, which can be picked up or moved by a strong magnet. Another type of temporary magnet is an electromagnet which only retains magnetism when an electrical current is running through it.
Explanation:
<em>I</em><em> </em><em>think</em><em> </em><em>the</em><em> </em><em>right</em><em> </em><em>option</em><em> </em><em>are</em><em> </em><em>A</em><em> </em><em>and</em><em> </em><em>B</em>
<em>Those</em><em> </em><em>energy</em><em> </em><em>which</em><em> </em><em>is</em><em> </em><em>possessed</em><em> </em><em>by</em><em> </em><em>a</em><em> </em><em>body</em><em> </em><em>due</em><em> </em><em>to</em><em> </em><em>virtue</em><em> </em><em>of</em><em> </em><em>its</em><em> </em><em>motion </em><em>is</em><em> </em><em>called</em><em> </em><em>kinetic</em><em> </em><em>energy</em><em>.</em>
<em>Hope</em><em> </em><em>it</em><em> </em><em>helps</em><em>.</em><em>.</em><em>.</em>
Answer:
what is speed
how to tell what speed an objeckt is moveing
vlocity
Explanation:
Explanation:
Hints:
Use the formula below to find the period.
Where f is the frequency in Hertz, and T is the time period in seconds.
To calculate the wavelength
use:
frequency=speed×wavelength
use the speed of sound. Make wavelength the subject of the formula and solve