B.) Venus and Uranus
All of the planets move in an eastward direction except Venus and Urunus
Least count of the pulse stopwatch is given by
this means each division of the stopwatch will measure 0.1 s of time
After 3 journeys from one end to other we can see that total time that is measured here is shown by the clock as 52nd division
So here total time is given as
Time = (Number of division) (Least count)
now we will have
Young people
Explanation:
cuz old people can't do sports
Answer:
C. 98 J
Explanation:
Mechanical energy is defined as the sum of kinetic energy (K) and potential energy (U):
E = K + U
where
is the kinetic energy, where m is the mass of the object and v its speed
is the potential energy, where g is the gravitational acceleration and h the height of the object relative to a reference point
For the object in this problem, the kinetic energy is zero, because it is not moving, so v = 0 and K=0. So the mechanical energy is just given by the potential energy, which is given by: