The work output of a machine can never be less than
1 answer:
The work output of a machine can be anything, depending on the friction
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Answer:
The magnitude of the electric field strength = 7.2 x 10⁸ N/C
Explanation:
The linear density:
Point r = 3 cm = 3/100 m
r = 0.03 m
The electric field strength is calculated below
The magnitude of the electric field strength = 7.2 x 10⁸ N/C
Answer:
I think it is acute angle.
Explanation:
Because it is an angle between 0° and 90°. Hope this answer wil help you.
Answer:
compression
Explanation:
compression can produce faulting in rocks in the form of thrust faults and can also cause liner valleys (grabens) and mountains
Answer:
A. Thermal energy;
Thermal energy is energy that comes from a substance whose molecules and atoms are vibrating faster due to a rise in temperature.
Answer:
1.2 W
Explanation:
Let the value of resistance be R , emf of battery be E
current i = E / R
power = i² R
= E² x R / R²
= E² / R
Given
E² / R = .30
when two batteries are connected
Total emf = 2E
current = 2E / R
Power = ( 2E / R )² x R
= 4 E² / R
= 4 x .30
= 1.2 W .
