Answer:
i) Heat required to raise temperature of iron is
ii) Heat require to raise temperature of copper is
iii) Heat require to raise temperature of tungsten is
Explanation:
As we know that specific heat capacity of
i) Iron is 444 J/kg C
so heat required to raise its temperature is given as
ii) Copper specific heat is 385 J/kg C
so heat required to raise its temperature is given as
iii) Tungsten specific heat capacity is given as 134 J/kg C
15 minutes = 15*60 = 900 seconds
900x1.1 = 990 m
Answer:28 m
Explanation:
Given
Direction is North of east i.e. with x axis
Also ball moved by 33 m
therefore its east component is 33cos58=17.48 m
Northward component
Explanation:
the question it's not complete as I don't know the height as the formula for potential energy is : <u>PE = </u><u>mgh</u>
<em>(m) - mass acceleration due to gravity </em>
<em>(g) - acceleration due to gravity </em><em> </em><em>(</em><em>9</em><em>.</em><em>8</em><em> </em><em>m</em><em>/</em><em>s2</em><em>)</em>
<em>(h) - height</em>