Answer: C. Metal transfers heat away from the skin by conduction, creating the sensation of coolness.
Explanation: The skin releases heat into the metal bowl since there is a difference in temperature between the two objects. So heat is taken away from the hand abd transfers into the metal bowl by conduction creating a cooler sensation.
<span>If the entropy is greater than the enthalpy, it will have more spontinaity</span>
Answer: b. The combination is a mixture because the substances can be separated
Explanation: Based on the facts presented above, the combination of both both substances can be referred to as a mixture due to the following:
A mixture is obtained when two or more substances or materials are combined without a chemical reaction. This is observed when Jalen combined substance 1 and 2 with only one of the substances becoming visible after the combination.
The other reason is that, a mixture can be separated back into its original constituent, this is evident when the combination was filtered with only substance 2 going through the filter and substance 1 remaining in the filter
A microwave causes radiation in the kitchen.
Answer:
a. 25000J or 25KJ
b.2500w
Explanation:
a. since we say work is force applied in the same line or straight line
<em>W=</em><em>F(</em><em>newtons </em><em>)</em><em>*</em><em>D(</em><em>metres</em><em>)</em><em> </em>
<em>b.</em><em> </em><em>power </em><em>is </em><em>work </em><em>over </em><em>time </em>
