Answer:
Time period becomes one third
Explanation:
Time period is the reciprocal of frequency
so if frequency is tripled period will be one third.
Answer:
C. a closed loop of wire moving at constant velocity in a nonuniform static magnetic field.
Explanation:
As we know by Faraday's law that rate of change in magnetic flux will induce EMF
so mathematically we can say that

so we will have

so EMF will be induced if the flux linked with the closed loop will change with time.
So here correct answer will be
C. a closed loop of wire moving at constant velocity in a nonuniform static magnetic field.
Answer:
The minimum speed of pail is 2.42 m/s.
Explanation:
Given that,
Radius = 0.600 m
We need to calculate the minimum speed of pail
Using centripetal force



Where, v = speed
r = radius
g = acceleration due to gravity
Put the value into the formula


Hence, The minimum speed of pail is 2.42 m/s.
B. Can be hurried up once you have it memorized.
Explanation:
A good stretching routine should not be hurried because it has been memorized. This is a bad stretching habit and should not be encouraged in daily routines.
- Stretching helps to flex the muscle gently after a period of inactivity or over activity.
- It ensures that our muscles are well straightened out and perfectly in shape.
- A full body stretch should last a minimum of about five minutes.
- Stretching helps to improve tissue elasticity and their flexibility
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