Answer:
T = 3.17 s
Explanation:
Given that,
The length of the pendulum, l = 2.5 m
We know that the period of oscillation of the pendulum is given by :
Where
g is the acceleration due to gravity
So, the period of oscillation is equal to 3.17 s.
Answer:
T = 52.3°C
Explanation:
given,
total mass = 407 g
power = 750 W
time = 5 minutes
Latent of melting = 334 J/g
increase in temperature = ?
energy required to melt =
= m Lm
= 334 x 407
= 135938 J
energy by the microwave
E = 750 x 5 x 50
E = 225000 J
Actual energy increased
= 225000-135938 = 89062 J
using formula
Q = m c_s Δ T
c_s is the specific heat of water which is equal to 4.184 J/g⁰C
T = 52.3°C
Answer:
Kinetic energy is energy possessed by an object in motion. The earth revolving around the sun, you walking down the street, and molecules moving in space all have kinetic energy. Potential energy is energy an object has because of its position relative to some other object.
Explanation: