Answer:
2.3*10^8m/s
Explanation:
Using
V = c/n
Where c= speed of light
n = refractive index of water
By substituting
We have
V= 3*10^8m/s/1.33
= 2.3*10^8m/s
The answer is A, vinegar and soda. Let me know if you need an explanation :)
Answer:
see that there is no dependence on speed, so the work remains constant
Explanation:
Work is defined by the expression
W = F. d
where the boldface indicates vectors, this equation can be written in scalar form
W = f d cos θ
where θ is the angle between force and displacement.
We see that there is no dependence on speed, so the work remains constant
The power is
P = W / t
P = f d / t
p = F v
we see that the power is the one that depends on the speed of the body
Answer:
c. 716, 800 J
Explanation:
t = Time taken
u = Initial velocity = 32 m/s
v = Final velocity = 0
s = Displacement = 60 m
a = Acceleration
m = Mass of car = 1400 kg
Work done is given by
The amount of work done to stop the car is 716800 J
Answer: When the temperature of an object increases, the average kinetic energy of its particles increases. When the average kinetic energy of its particles increases, the object's thermal energy increases. Therefore, the thermal energy of an object increases as its temperature increases.
