Time and distance I think
USE MORE COILS OF WIRE AROUND THE NAIL
Explanation:
To increase the strength of an electromagnet, the following strategy is adopted in order to have better efficiency.
The best method which suits for increasing the strength of electromagnet is to increase the number of turns around the nail.
If we increase the number of turns up to a specific value the magnetizing property of magnet is enhanced. So that to increase the strength , add more number of turns to the existing turns of coil.
Answer:
Work done is 93.75J
Explanation:
Given mass, m = 30kg; Time = 5 seconds; force = 15N; u= 0
Acceleration, a = F/m ⇒ 15/30
⇒ 0.5ms
Displacement , s= ut+1/2at²
⇒ 0 +1/2 (0.5*5*5)
⇒ 0 + 1/2(0.5*25)
⇒ 0 + 1/2(12.5)
⇒ 0 + 6.25
⇒ 6.25m
work done = Fs=15*6.25= 93.75 J
The product of the dosage Gy and relative biological efficiency yields a radiation dose equivalent Sv (RBE).
Sv =dose in Gy * RBE Sv=dose in GyRBE
The quantity of ionising energy absorbed by 1 text kg1 kg of tissue is defined as a radiation dose Gy. While RBE is a measure of a specific dose's biological effect relative to the biological effect of an equal quantity of X rays.
<h3>
What is radiation?</h3>
Radiation is energy that moves through space at the speed of light from a source. This energy is coupled with an electric and magnetic field, and it exhibits wave-like qualities. Radiation is sometimes known as "electromagnetic waves."
Nature has a diverse variety of electromagnetic radiation. One example is visible light.
X-rays and gamma rays are extremely energetic. They may take electrons from atoms when they engage with them, causing the atom to become ionised.
learn more about Radiation refer:
brainly.com/question/893656
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Answer:
how matter and energy interact