There's not enough information given in the problem to calculate that answer.
A leaf falling from a tree on Earth, a sheet of printer paper falling off the back
of a truck on Venus, and a steel ball sinking through a bucket of Scotch whiskey
on Mars, might all reach the bottom in 0.75 second. The time it would take each
of them to fall the same distance through a vacuum in the same place would be
different, and the 0.75 second is not enough to enable you derive it ... <em>even</em> if
you <em>did</em> know the acceleration of gravity in each place. All you can say is that
without resistance, it would fall faster, and hit bottom in <em>less than</em> 0.75 second.
This is the mechanism behind a thermocouple (choice D). The two metals generate a magnetic field between them when the temperature is varied, and this causes a voltage (potential difference) to form between the metals. An electronic meter is calibrated to translate this voltage difference into a temperature value for a user to read.
Answer:
Two football players pushing a tackling shed
Explanation:
They're working together to push it. (I also answered this and that was the correct answer)
Answer:
<em>(a)The period will increase by 2 times</em>
<em>(b)The period will increase by 2.45 times</em>
Explanation:
(a)
When the mass increased by a factor of 4 then;
=×
The period is doubled by 2 times
(b) if the pendulum is taken to the moon where the force of gravitation is about g/6 then
=2.45
The period will increase by 2.45 times
Answer:
44.21053 m
279.69925 seconds
Explanation:
Time taken by the squirrel to reach the finish line
Time taken by the horse to cover 0.96 km
Time taken by the horse to cover 1.2 km
Let the distance that the squirrel is from the finish line when the horse resumes the race be x.
During this time the horse also reaches the finish line.
We deduce that
The time taken by the horse from one stop = Time taken by squirrel before x distance from finish line.
The squirrel is 44.21053 m from the finish line when the horse resumes the race.
Duration is given by
The duration is 279.69925 seconds