Answer:
The correct choice is D. Concentric exercise can be hard on joints, so she should be very careful.
Answer:
Magnetic field lines can be drawn by moving a small compass from point to point around a magnet. At each point, draw a short line in the direction of the compass needle. Joining the points together reveals the path of the magnetic field lines.
Explanation:
<span>λν=c
(wavelength x frequency = speed)
speed = 45 x 0.1
= 4.5 m/s</span>
According to Newton’s second law of motion:
F=ma
=80*0.5
=40N
Answer:21
Explanation:every body said