2. A ball is thrown 45 m into the air. It takes the ball 5 s to hit the ground. What is the

Two long, parallel wires are separated by a distance of 2.60 cm. The force per unit length that each wire exerts on the other is

Alex777 [14]

Answer:

10.75 A

The current is in opposite direction since it causes a repulsion force between the wires

Explanation:

Force per unit length on the wires = 4.30×10^−5 N/m

distance between wires = 2.6 cm = 0.026 m

current through one wire = 0.52 A

current on the other wire = ?

Recall that the force per unit length of two wires conducting and lying parallel and close to each other is given as

$F/l$ = $\frac{u_{0}I_{1} I_{2} }{2\pi r }$

where $F/l$ is the force per unit length on the wires

$u_{0}$ = permeability of vacuum = 4π × 10^−7 T-m/A

$I_{1}$ = current on the first wire = 0.520 A

$I_{2}$ = current on the other wire = ?

r = the distance between the two wire = 0.026 m

substituting the value into the equation, we have

4.30×10^−5 = $\frac{4\pi *10^{-7}*0.520*I_{2} }{2\pi *0.026}$ = $\frac{ 2*10^{-7}*0.520*I_{2} }{0.026}$

4.30×10^−5 = 4 x 10^-6 $I_{2}$

$I_{2}$ = (4.30×10^-5)/(4 x 10^-6) = 10.75 A

The current is in opposite direction since it causes a repulsion force between the wires.

6 0

4 years ago

After dinner, Joanne did not put the leftover casserole away until after watching her favorite television show. What is the long

jenyasd209 [6]

Answer:

2 hour

Explanation:

According to my research on Food Safety and Inspection Service (FSIS), I can say that based on the information provided within the question the longest time it should be left out of the refrigerator is 2 hour. This is considering that it was left at room temperature, any higher than room temperature then food-borne bacteria will begin to grow rapidly after about 1 hour and can cause food poisoning if ingested.

I hope this answered your question. If you have any more questions feel free to ask away at Brainly.

5 0

4 years ago

In the diagram below, a box is at rest on an inclined plane.

Sonbull [250]

Answer:

It c

Explanation:

8 0

3 years ago

The box resting on the inclined plane above has a mass of 20kg. The incline sits at a 30o angle. Find the friction force between

tekilochka [14]

The friction force between the box and the incline if the box does not slide down the incline will be 0.577

The force preventing sliding against one another of solid surfaces, fluid layers, and material components is known as friction. There are several kinds of friction: Two solid surfaces in touch are opposed to one another's relative lateral motion by dry friction.

Given the box resting on the inclined plane above has a mass of 20kg and the The incline sits at a 30 degree angle

We have to find the friction force between the box and the incline if the box does not slide down the incline

Since the frictional force F₁ must equal or exceed gravitational force F₂ down the incline:

F₁ = F₂

μmgcosΘ = mgsinΘ

μ = (mgsinΘ)/(mgcosΘ)

μ = tanΘ

μ = 0.577

Hence the friction force between the box and the incline if the box does not slide down the incline will be 0.577

Learn more about friction force here:

brainly.com/question/24386803

#SPJ4

3 0

2 years ago

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Two objects, one having three times the mass of the other, are dropped from the same height in a vacuum. At the end of their fal

gogolik [260]

Answer:

Two objects will have the equal velocities but the forces on both of them will not be equal. The equal velocities of these objects are due to their equal acceleration.

Explanation:

From the newton's equation

$v^{2} -u^{2} = 2as$

so here we can say that velocity does not depends on the mass.

The acceleration of both objects will be same but not the forces because

F = Ma

As the force is depending on the mass so it will not be the same for both objects.

5 0

3 years ago

Read 2 more answers