Answer:
(a). The average speed is 51.83 m/s.
(b). The average velocity over one revolution is zero.
Explanation:
Given that,
Angular velocity = 110 rev/m
Radius = 4.50 m
(a). We need to calculate the average speed
Using formula of average speed
(b). The average velocity over one revolution is zero because the net displacement is zero in one revolution.
Hence, (a). The average speed is 51.83 m/s.
(b). The average velocity over one revolution is zero.
Answer:
3.8226 m/s
Explanation:
Momentum is conserved hence
equating momentum, p
p (before) = p (after)
0 = (m1v1)+(M2v2) but m2=2.77m where m and v are the masses and velocity respectively
0 = (mv1) +(2.77m)(1.38)
(mv1)=-(2.77m)(1.38)
(v1)=-(2.77)(1.38)
Solving v1
v1 = - 3.8226 m/s
= 3.8226 m/s, to the left
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Answer:
Explanation:
I don't get what the relation here is. Venus is the hottest planet in our solar system. And yes, it's hotter than mercury despite mercury being closer to the sun. And your question talks about the coldest temperature measured which is -235 degrees Celsius. That surely isn't measured on Venus. I'm only wondering what Venus has got to go with cold and what exactly your question is
Answer:
E = 251.14 J
Explanation:
The thermal energy deposited in tire can be given by the following formula:
where,
E = thermal energy = ?
f = frictional force = μW = μmg
d = distance covered = 40 cm = 0.4 m
m = mass = 80 kg
μ = coefficient of friction = 0.8
Therefore,
<u>E = 251.14 J</u>