Mass of the block = 2 kg
Temperature is increased by ΔT = 50 °C
Energy consumed by the block in raising the temperature = 2000 Joules
Let the specific heat capacity of the block be "c".
Formula to be used:
Heat gained = m × c × ΔT
Plugging the values:
2000 = 2 × c × 50
c = 20 J/ kg °C
Hence, the specific heat capacity of the block is: 20 J/ kg °C
Answer:
Power, P = 30 W
Explanation:
We have,
Voltage drop of a circuit is 60 V
Resistance of the resistor is 120 ohms
Current across the circuit is 0.5 A
It is required to find the power conducted by the resistor. Power conducted by a resistor is given by :
V and I are voltage and current
So, the power conducted by the resistor is 30 watts.
Answer:0.25 kg-m/s
Explanation:
Given
mass of blob
initial velocity
time of collision
we know Impulse is equal to change in momentum
initial momentum
Final momentum
as final velocity is zero
Impulse