Answer:
<u>Work done</u><u> </u><u>is</u><u> </u><u>5</u><u> </u><u>J</u>
Explanation:
Workdone = Force × distance
Answer:
Nuclear reaction is a reaction in which nucleus of the atom undergoes a change.
Nuclear fusion is a process which involves the conversion of two small nuclei to form a heavy nuclei along with release of energy.
Example :
Nuclear fission is a process which involves the conversion of a heavier nuclei into two or more small and stable nuclei along with the release of energy.
Example:
Because north and east are positive directions and south is a negative direction, the answer is 50mi.
30mi north+50mi East-30mi south=50mi.
Answer:
A convex mirror is curved outwards, and concave mirror is curved inwards. The fundamental difference between them is that the reflective surface of a concave mirror is inside the sphere and that of a convex mirror is outside.
Answer:
Explanation:
Given that,
Heat required, Q = 1200 J
Mass of the object, m = 20 kg
The increase in temperature,
We need to find the specific heat of the object. The heat required to raise the temperature is given by :
So, the specific heat of the object is .