Answer:
Moment of inertia will be
Explanation:
We have given mass of the person m = 72 kg
Radius r = 0.8 m
Force is given F = 5 N
Angular acceleration
Torque is given by
We know that torque is also given by
, here I is moment of inertia and is angular acceleration
So
Answer:
I am not exactly sure what you are talking about. A dictionary weighs about 1kg. 1kg is equal to 2.2 lbs, or about a quart of milk.
Answer:
A) the liquid particals move slower
Explanation:
vapor has a higher temp and have more energy than liquid so it's not c or d. and liquid has a lower boiling point than vapor
Answer:
Answer
Advantages of alcohol over Mercury
(a) Freezing point of alcohol is −117∘
C and hence can record very low temperature For example in Arctic and Antarctic regions temperature may fall below −80∘
C which cannot be measured by mercury thermometer because mercury freezes at−39 ∘ C
(b) The expansion of alcohol per degree rise in temperature is much more around six times more then that of mercury and hence is more sensitive
(c) it can be coloured brightly by adding some dye in it and hence is easily detectable
The speed of the train after an additional 5 s has elapsed is 9.45 m/s
<h3>What is acceleration? </h3>
This is defined as the rate of change of velocity which time. It is expressed as
a = (v – u) / t
Where
- a is the acceleration
- v is the final velocity
- u is the initial velocity
- t is the time
<h3>How to determine the acceleration in 5.4 s</h3>
- Initial velocity (u) = 0 m/s
- Final velocity (v) = 4.9 m/s
- Time (t) = 5.4 s
- Acceleration (a) =?
a = (v – u) / t
a = (4.9 – 0) / 5.4
a = 4.9 / 5.4
a = 0.91 m/s²
<h3>How to determine the final velocity after 5 s</h3>
- Initial velocity (u) = 4.9 m/s
- Acceleration (a) = 0.91 m/s²
- Time (t) = 5 s
- Final velocity (v) = ?
a = (v – u) / t
0.91 = (v – 4.9) / 5
Cross multiply
v – 4.9 = 0.91 × 5
v – 4.9 = 4.55
Collect like terms
v = 4.55 + 4.9
v = 9.45 m/s
Learn more about acceleration:
brainly.com/question/491732
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