Unlike mechanical waves, electromagnetic waves can travel through a vacuum.
Answer:
false
Explanation:
if one bulb goes out so does the other
Answer:
<h2>1 m²</h2>
Explanation:
The area of the floor covered by his both feet can be found by using the formula
f is the force
p is the pressure
From the question we have
We have the final answer as
<h3>1 m²</h3>
Hope this helps you
Answer:
The value of change in internal l energy of the gas = 1850 J
Explanation:
Work done on the gas (W) = - 1850 J
Negative sign is due to work done on the system.
From the first law we know that Q = Δ U + W ------------- (1)
Where Q = Heat transfer to the gas
Δ U = Change in internal energy of the gas
W = work done on the gas
Since it is adiabatic compression of the gas so heat transfer to the gas is zero.
⇒ Q = 0
So from equation (1)
⇒ Δ U = - W ----------------- (2)
⇒ W = - 1850 J (Given)
⇒ Δ U = - (- 1850)
⇒ Δ U = + 1850 J
This is the value of change in internal energy of the gas.
What results do we communicate?