Answer:
Explanation:
You are not raising the temperature of the block of ice. You are making it turn phase.
H = m * hf
That's the mass of the block and the latent heat of fusion.
D.
A wave, since that statement is quite similar to it's definition: an oscillation <span>accompanied by an energy transfer.</span>
Answer:
Option B is the correct answer.
Explanation:
Refer the figure we have centripetal force at bottom of circle
We have mass, m = 2 kg
Radius, r = 1.2 m
For circular motion to occur we have tension at top = 0
That is
Now let us find tension at bottom point
Option B is the correct answer.
Use the equation F=ma to solve for the acceleration
Force: 50 N
Mass: 100kg
50=100a
a= .5 m/s/s
Answer:
n = 87 the number of people can raft hold
Explanation:
The raft is made of 10 logs
No given the information to find the average person assuming
w = 69 kg , wₙ = 0.60
e = 56 cm * 1 / 100 cm = 0.56 m
l = 6.1 m
V = 10 * 6.1m * (0.56m /2) ² π
V = 15.024 m³
m₁ = V * L³ * wₙ + mₙ
m₂ = V * L³
m₁ < m₂
n < V * (1 - wₙ) * L₃ / w
n < 15.024 m³ * ( 1 - 0.60) * 10³ / 69 kg
n ≅ 87
Is the number of maximum people
