Pls give me brainliest!!!
Answer:
b. 0.75 mm
Explanation:
The distance between antinodes d is half the wavelength
. We can obtain the wavelength with the formula
, where f is the frequency given (
) and v is the speed of sound in body tissues (v=1540m/s), so putting all together we have:

which is very close to the 0.75mm option.
Explanation: The first one
Source: it literally has fusion in the name
Answer:
1. Static electricity has two charges magnetism has two poles.
2. Same charges and same poles repel and opposite charges and poles attract.
3. Static electricity is produced by charges(at rest) Magnetism is produced by charges(moving with uniform speed)
Answer:
Because it is said that the earth rotates and revolves around the sun and moon so it is impossible for the earth not to be spinning.
Explanation: