Answer:a
Explanation:because you might not know if each object would attract each other because we already know that a soup can and a spoon and also the pencil will not attract to each other but the paper clip will attract to the magnet
Answer:
The answer is C, a thermometer reads 0.1 degree higher than it should.
To solve the problem, you should first convert the 20ft to
meters so it is much easier.
20 feet is equals to 6 meters; rounded off to the nearest
whole number.
Solution:
V1 = v
V2 = 0
T1 = ½ mv^2
T2 – 0
U 1-2 = -mgh
d = 6m
--AB^2 = (10m)^2 = d^2 + y^2 = (6m)^2 = y^2
Y^2 = 100 – 36 = 64
Y = sqrt64
h = 10 – y = 10 – sqrt64 = 10 – 8 = 2 m
U 1- 2 = -m (9.81) (2) = -19.62
T1 + U1-2 = T2
1/2mv^2 – 19.62m = 0
v^2 = (2) (19.62) = 39.24
Answer:
a. 76.92 MW
b. 26.92 MW
Explanation:
η = Efficiency of the power plant = 0.35
Q₂ = rate at which heat rejected to surrounding = 50 MW
Q₁ = Rate of Input heat = ?
Efficiency of the power plant is given as
Q₁ = 76.92 MW
Net Rate of work is given as
Q = Q₁ - Q₂
Q = 76.92 - 50
Q = 26.92 MW