Ask question

Ask question

All categories

olga nikolaevna [1]

2 years ago

10

What causes an atom to be neutral? Equal number of protons and neutrons Equal distance between the nucleus and electrons Equal n

umber of electrons and protons Equal distribution of electrons

1 answer:

pishuonlain [190]2 years ago

3 0

C. Equal number of electrons and protons

You might be interested in

Which graph shows uniform motion.

bagirrra123 [75]

Answer:

1. shows uniform motion

Explanation:

5 0

2 years ago

Read 2 more answers

At a fixed depth within a fluid at rest, the pressure pushing upward is

earnstyle [38]

Answer: E) A) salt water.

Explanation:

E) In equilibrium, pressure exerts equally in all directions, so for a given depth, the pressure is the same for all points located at the same depth, and it can be written as follows:

p = p₀ + ρ.g.h, where p₀ = atmospheric pressure, ρ=fluid density, h=depth from the surface.

A) The buoyant force, as discovered by Archimedes, is an upward force, that opposes to the weight of an object (as it is always downward), and is equal to the weight of the volume of the liquid that the object removes, which means that is proportional to the density of the liquid.

As salt water is denser than fresh water, the buoyant force exerted by the salt water is always greater than the one produced by the fresh water, so objects will float more easily in salt water than in fresh water.

In the limit, it is possible that one object float in salt water and sink in fresh water.

3 0

3 years ago

You have a spring-loaded air rifle. When it is loaded, the spring is compressed 0.3 m and has a spring constant of 150 N/m. In j

Feliz [49]

The potential energy of the spring is 6.75 J

The elastic potential energy stored in the spring is given by the equation:

$E= \frac{1}{2} kx^2$

where;

k is the spring constant

x is the compression/stretching of the string

In this problem, we have the spring as follows:

k = 150 N/m is the spring constant

x = 0.3 m is the compression

Substituting in the equation, we get

$E=\frac{1}{2} (150) (0.3)^2$

$E=6.75J$

Therefore. the elastic potential energy stored in the spring is 6.75J .

Learn more about potential energy here:

brainly.com/question/10770261

#SPJ4

6 0

1 year ago

Kate is working on a project in her tech education class. She plans to assemble a fan motor. Which form of energy does the motor

andreyandreev [35.5K]

Motion Energy

I am writing this so it can be more than 20 letters

7 0

3 years ago

Analysis of the relationship between the fuel economy (mpg) and engine size (liters) for 35 models of cars produces the regres

kvasek [131]

Answer:

Gas mileage is 17.29

Explanation:

Given data:

The total number of the model is 35

The total size of the engine is 5 ltr

The regression model is given as

$36.44 - 3.829\times engine\ size$

From the information given in question we have

Regression equation is : model- mpg $= 36.44 - 3.829\times engine\ size$

Therefore for engine capacity of 5 liters;

Gas mileage $= 36.44 - 3.829\times 5 = 17.29$

Gas mileage is 17.29

8 0

3 years ago