What wires allow electrons to flow the easiest?

A 10-meter-long spear is thrown at a relativistic speed through a 10-meter-long pipe (both measured when at rest.) when the spea

Mekhanik [1.2K]

The correct answer is a

8 0

3 years ago

The acceleration due to gravity on the moon is 1.6 m/s2. What is the gravitational potential energy of a 1200-kg lander resting

Monica [59]

Gravitational potential energy is energy an object possesses because of its position in a gravitational field. The equation for gravitational potential energy is GPE = mgh.

GPE = 1200(1.6)(350) = 672000 J

Hope this answers the question. Have a nice day.

8 0

3 years ago

Read 2 more answers

"Two long parallel wires 24.0 cm apart carry currents of 3.0 A and 8.0 A in the same direction. How far from the wire carrying 3

avanturin [10]

Answer:

6.5454 m

Explanation:

Let the distance from the wire carrying 3 A current is x

Then the distance from the the carrying current 8 A is 24-x

We know that magnetic field due to long wire is given by $B=\frac{\mu _0i}{2\pi r}$

It is given that magnetic field is zero at some distance so

$\frac{\mu _0i_1}{2\pi x}=\frac{\mu _0i_2}{2\pi (24-x)}$

Here $i_1=3\ A \ and\ i_2=8\ A$

So $\frac{3}{x}=\frac{8}{24-x}=6.5454\ m$

3 0

3 years ago

I WILL GIVE U BRAINLIST layers: Earth:: ___: the Sun

Alex_Xolod [135]

Answer:

There are layers on the Earth. There is gas on the Sun.

This means that the answer is...

D: Gas

6 0

3 years ago

Pre-laboratory Assignment: Experiment 20 Reflection and Refraction of Light 1. When light is incident on a reflective surface, w

shusha [124]

Answer:

1) ngle of incidence and reflection are equal, light carries does not change

2) the angle of this line with respect to the surface is 90º

3) protractor

4) n₂ sin θ₂ = n_1 sin θ₁, light ray must have a greater angle than the incident ray ,

Explanation:

1) When light falls on a reflective surface, the angle of incidence and reflection are equal and as it travels in the same medium, the speed that the light carries does not change

2) The normal is a line perpendicular to the point of incidence of light, so the angle of this line with respect to the surface is 90º

3) Angles are measured with a protractor

4) When light passes from one medium to another, the speed of the ray changes due to the difference in the refractive index in each medium, due to this change in speed the transmitted light ray must have a greater angle than the incident ray , since the speed increases as the density of the medium decreases

$\frac{sin \theta _2}{ sin \theta_1} = \frac{v_2}{v_1}$

$\frac{c}{v_2} \ sin \theta_2 = \frac{c}{v_1} \ sin \theta_1$

n₂ sin θ₂ = n_1 sin θ₁

6 0

3 years ago