2. A race car rounding a corner at a constant speed of 200 miles per hour.<br> Yes not

Consider the magnetic field (B) of a wire with a constant current (I). A Magnetic Field sensor is placed at a radius (r). Will t

iren [92.7K]

Answer:

No, the magnitude of the magnetic field won't change.

Explanation:

The magnetic field produced by a wire with a constant current is circular and its flow is given by the right-hand rule. Since this field is circular with center on the wire the magnitude of the magnetic field around the wire will be given by B = [(\mi_0)*I]/(2\pi*r) where (\mi_0) is a constant, I is the current that goes through the conductor and r is the distance from the wire. If the field sensor will move around the wire with a fixed radius the distance from the wire won't change so the magnitude of the field won't change.

8 0

3 years ago

Based on the concept of the wave-like nature of light, Huygens' theory of light __________ postulates that the more light was "b

DochEvi [55]

I believe it was Christaan huygens.

have a nice day!

7 0

3 years ago

Read 2 more answers

Why does a paper clip sink and a big ocean liner float? explain your answer.

slamgirl [31]

<span>Because of the density of the paperclip it sinks, but even though a boat is normally made of steal it contains an opposite force of gravity known as buoyancy. Buoyancy is the reason that a boat will float. Boat density is less weight than the water they are in so this is one reason that they are floaters.</span>

4 0

4 years ago

1. Consider a circular track with a radius of 200 meters. A runner starts on the east side and runs around the track to a point

ladessa [460]

Answer:

The magnitude of her displacement when at a point diametrically opposite her starting point is 400 meters

After she has returned to her starting point, the magnitude of her displacement is zero

Explanation:

Displacement is a vector quantity defined as the length of the shortest path between the final and the initial points. In other words, displacement can be defined as the distance traveled in a straight line.

From the question,

The circular track has a radius of 200 meters.

The runner starts on the east side to a point diametrically opposite her starting point. The diametrically opposite point is the point at the opposite end of the diameter of the circle.

Hence, her displacement ( that is, the length of the shortest path between her final and her initial points) is the length of the diameter of the circle.

Diameter d, of a circle is given as twice the radius r, of the circle.

That is, d = 2r

Radius r, of the circular track is 200 meters

∴ d = 2r = 2 (200 meters)

d = 400 meters

Hence, her displacement when at a point diametrically opposite her starting point is 400 meters

Now, after she has returned to her starting point, the magnitude of her displacement is zero.

This is because, the length between her final point ( which is the same as her initial point) and her initial point in zero.

7 0

3 years ago

Suppose you throw a ball straight upward; it rises, then returns to your hand

bazaltina [42]

Answer:

Please find the attached file for the solution

Explanation:

Given that you throw a ball straight upward; it rises, then returns to your hand

(a) Calling the point where it leaves your hand the origin and upward positive, make a plausible sketch of its position (vertical height) x(t) versus time t from the instant after it leaves your hand till the instant before it reaches it again.

(b) From your x(t) plot, make a sketch of the ball’s velocity v(t) versus time.

(c) From your velocity plot, sketch a plot of the ball’s acceleration versus time.

(d) Does your plot suggest that the ball’s acceleration is zero at the top of its flight

Please find the attached file for the solution and graph

5 0

3 years ago

2. A race car rounding a corner at a constant speed of 200 miles per hour. Yes not