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Zielflug [23.3K]

3 years ago

13

A wire carrying a current is bent into a loop. The magnetic field is strongest A. at the center of the loop. B. at the edges of

the loop. C. where the loop is located.

2 answers:

Tems11 [23]3 years ago

7 0

C is the direction of the current flow

Maru [420]3 years ago

3 0

Your answer is a. at the center of the loop

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vA child is in danger of drowning in the Merimac river. The Merimac river has a current of 3.1 km/hr to the east. The child is 0

ikadub [295]

Answer:

$d = 2.26 km$

Explanation:

Let the child is moving with speed same as the speed of water flow

So here the position of child with respect to flow must be zero

And if the boat start at an angle with the vertical

so its relative speed with flow of water is given as

$v_x = 24.8 sin\theta$

$v_y = 24.8 cos\theta$

now the time to reach the child is given as

$\frac{0.6}{24.8 cos\theta} = \frac{2.5}{24.8 sin\theta }$

so now we have

$\theta = 76.5 degree$

So the time to catch the child is given as

$t = \frac{0.6}{24.8 cos78.2}$

$t = 0.104 h$

So distance moved by it in 0.104 h

distance moved by the boat in upstream direction given as

$x = (24.8 sin 74.8 - 3.1)(0.104)$

$x = 2.18 km$

In y direction the displacement of boat is

$y = 0.6 km$

net displacement of the ball is given as

$d = \sqrt{x^2 + y^2}$

$d = \sqrt{2.18^2 + 0.6^2}$

$d = 2.26 km$

4 0

3 years ago

Name the forces acting on a plastic bucket container water held above ground level in your hand. Discuss why the forces acting o

SashulF [63]

There are two forces at play:

The gravitational force acting downward due to the mass of the bucket and the water that it contains.
The upward force that your hand exerts on the bucket.

If the magnitude of the force your hand exerts on the bucket equals the magnitude of the gravitational force, the bucket is in static equilibrium. That means the bucket is not moving and the forces acting on it balance each other out, making the net force 0.

Having 0 net force means the bucket doesn't undergo any acceleration, or change in motion.

5 0

3 years ago

What length of tube would be required to produce a second tone under the same experimental conditions? Explain your answer.

Alisiya [41]

There is an indirect relationship between length and frequency. The longer the length the pipe has, the higher frequency it is. The shorter the length the pipe has, the lower frequency it is.

<u>Explanation:</u>

The four properties of the string that affect its frequency are length, diameter, tension, and density. These properties are described below: When the length of a string is changed, it will vibrate with a different frequency. Shorter strings have higher frequency and therefore higher pitch.

The longer the tube is the lower the pitch of the note that it can emit. When a tube is heated it expands and so is longer! As the gas in the tube gets warmer the molecules move faster, that means they can carry the vibrations of the sound wave more rapidly and so the pitch goes up.

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When the heart beats faster, blood vessels need to _____ more.<br> open <br> close move

Yuki888 [10]

I'm pretty sure it is open more

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Which is the average kinetic energy of particles in an object?

alina1380 [7]

The amount of heat in the body in joule

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3 years ago