Answer:
She exerts a force of 40 N.
Explanation:
The fact that the ring remains stationary indicates that the forces are in equilibrium.
Let’s denote Jo's force as x.
The equation to consider is
140 = x + 100
x = 40
Answer:
At this position, the magnetic field equals ZERO
Explanation:
The magnetic field produced by a moving charge is described as

Here, we determine the direction of the magnetic field using

Thus, we find

Leading to a magnetic field of ZERO
Consequently, when the charge moves in the same line as the given position vector, the magnetic field will be nonexistent
Answer:
Responses to the 3.17 punchline varied among many individuals, with some suggesting that it was a "full" moon day which prevented the astronauts from landing.
Others claimed that the astronauts took off during daylight hours when the moon was not visible. There were also comments that indicated that 'astro' refers to stars rather than satellites, explaining why they did not land.
A few even noted that 'astro naut' sounds like 'naught,' meaning zero (0), as a possible reason for their failure to land.
Result: 168N
The calculation shows 16 - 10 equals 6
and 6 divided by 10 equals 0.6
. Therefore, F equals 280 multiplied by 0.6 equals 168.
A tennis player recovering from an ankle injury, restricted from pivoting, can keep her cardiovascular fitness by using the rowing machine, pedaling on a stationary bike with one leg, or swimming. These exercises do not necessitate directional changes and are safe for her injury.