This is true. they have numbers on the side that help to determine the volume.
Sample Response: liquids flow freely, they take the shape of the container they are in, but have a definite volume. Like liquids, the shape of a gas changes with the container. This is because the atoms in a gas move rapidly and freely to fill any available space. Unlike liquids, the volume of a gas changes depending on the container it is in.
Answer:
torque on the loop is 0.9812 Nm
Explanation:
given,
circular loop of 200 turns
radius = 65 cm
current in the loop = 85 A
Earth field is pointed north, but at an angle 45.0°
B = 6.15 × 10⁻⁵ T
torque on the loop = ?
using formula
hence, torque on the loop is 0.9812 Nm
Answer:
Part a)
Part b)
Part c)
F = 2.7 N
Explanation:
Part a)
As we know that the rotational kinetic energy of the merry go round is given as
here we know that
Now we have
Part b)
Now we know that work done due to torque = change in kinetic energy
Part c)
In order to stop it in four revolutions we have
F = 2.7 N