The electric field of a positively charged ball A contains a negatively charged small dust​

Answer:

true

Explanation:

Answer:

Objects with mass exert forces on each other via the force of gravity. This force is proportional to the mass of the two interacting objects, and is inversely proportional to the square of the distance between them. The factors G, M, and r are the same for all masses at the surface of the Earth.

Answer:

A) Increased levels of atmospheric carbon dioxide

Explanation:

All of the other options are positive effects

Answer:

10m/s^2

Explanation:

Given data

velocity= 40m/s

time= 4 seconds

Acceleration a =????

We know that

a= velocity/time

substitute

a=40/4

a= 10m/s^2

Hence the acceleration will be 10m/s^2

Answer:

F = m x a

Explanation:

F = force

m = mass of an object

a = acceleration

Answer:

Option D is correct.

Explanation:

[tex]Cm_{246} +C_{12}[/tex] → [tex]No_{254}[/tex]

Hence, it is the fusion reaction.

When two or more nuclei fuse together to form a heavy nucleus with the energy released, is called fusion.

https://brainly.com/question/16196953

#SPJ2

Answer:

Solar radiation is radiant energy emitted by the sun, particularly electromagnetic energy.

Answer:

the earth because us humans all live there and do many things like excercise jobs cleaning and other things

Answer:

see below

Explanation:

a wave means one complete wave which is 1 period

so a) 5 complete waves

wavelength is the shortest distance between any two points in phase

so wavelength = 1 CM

amplitude of a wave is the maximum displacement of a particle from its rest position

so amplitude = 3 CM

hope this helps

My bestfriend is the best ever person in my life.

Answer:

Best friend is that person which we share our feeling.

Answer:

588 N

Explanation:

weigh = Mg

I hope you got that. Thanks and upovote that

Answer:

is that high school work??? cause I don't know it and I'm about to go to high school

Answer:

D

Explanation:

as one burns then all stop simple

please mark me as brainlist

Answer:

v= 449.8 m/s

Explanation:

Given data

Frequency=  346Hz

Wave length= 1.4m

The expression below is used to find the speed

[tex]v= f \lambda\\\\[/tex]

substitute

[tex]v= 346*1.3\\\\v= 449.8 m/s[/tex]

Hence the speed is v= 449.8 m/s

Answer:

Measles and Whooping Cough

Explanation:

I really hope so

Answer:

Hey

Explanation:

Explanation:

actually, the question would need to give you what is the gravitational force, so let's take the average of the gravitational for me which is 10 N /kg

and the formula for finding weight is

W = mg

W = (5)(10)

W = 50 N

hope it is helpful, if not please report it so that someone else gets to try

please vote

Answer:

it's either A or B because lighting is an electrical discharge caused by imbalance between storm clouds and the ground

Explanation:

pretty sure it's A though

Answer:

D. x-rays

Explanation:

Lower frequency: Radio waves, microwaves and infrared have lower frequency than visible light. Shorter wavelength: Ultraviolet, x-rays and gamma rays have a shorter wavelength than visible light.

The best description of twins with identical DNA is that the twins will be identical physically and behaviorally. Thus, the correct option is C.

Identical twins are also called as the monozygotic twins which result from the fertilization of a single egg by a single sperm, or with the fertilized egg which are then splitting into two individual offspring. Identical twins share the same genomes and are also of the same sex.

Identical twins are also called as monozygotic twins, these result from the fertilization of a single egg by a single sperm, with the fertilized egg which then splitting into two identical cells. Identical twins share the same genomes and are always of the same sex.

Therefore, the correct option is C.

Learn more about DNA here:

https://brainly.com/question/21668095

#SPJ6

Answer: 9 Joules

Explanation:

Kinetic enegry is one half the mass multiplied by the velocity squared

KE = 1/2mv^2

[tex]KE=1/2(2)(3^2)\\KE=3^2\\KE=9J[/tex]

The kinetic energy of the body is 9J

Kinetic energy is the energy possessed by a body due to its motion.

It is claculated by formula,

K.E = [tex]\frac{1}{2}mv^{2}[/tex]

Here,

The mass of the body = 2.0kg

speed = 3.0m/s

So kinetic energy K.E = [tex]\frac{1}{2}mv^{2}[/tex]

K.E = [tex]\frac{1}{2} (2)3^{2}[/tex] = 9J

So the kinetic energy of the body is 9J

To know more about kinetic energy here

https://brainly.com/question/26405082

#SPJ2

Answer:

waxing gibbous is the answer.

Answer:

the distance covered by the car is 95.4 m.

Explanation:

Given;

initial velocity of the car, u = 36 m/s

acceleration of the car, a = -2.8 m/s²

time of motion of the car, t = 3 s

The distance covered by the car is calculated as;

s = ut + ¹/₂at²

s = 36(3) + ¹/₂ x (-2.8)(3)²

s = 108 - 12.6

s = 95.4 m

Therefore, the distance covered by the car is 95.4 m.

Answer:

You input potential (stored) energy into the rubber band system when you stretched the rubber band back. Because it is an elastic system, this kind of potential energy is specifically called elastic potential energy. ... When the rubber band is released, the potential energy is quickly converted to kinetic (motion) energy.

Explanation:

Answer:

43 kg

Explanation:

Force (F) = 162 N

acceleration (a) = 3.8 m/s²

mass (m) = ?

We know

F = m * a

162 = m * 3.8

m = 162 / 3.8

m = 43 kg

It's mass is 43 kg.

Hope it will help you :)

Answer: The speed of the wave appears to be constant. This is because the speed of sound depends only on the properties of the medium, and the medium is the same.

Explanation: The answer is from edmentum. Just letting you know on what not to copy and paste. Change it up.

Answer:

We conclude that the mass of a rock with a force of 500 N and an acceleration of 75 m/s² is 6.7 kg.

Hence, option D is correct.

Explanation:

Given

To determine

Mass m = ?

Important Tip:

Using the formula

[tex]F = ma[/tex]

where

now substituting F = 500, and a = 75 m/s² in the formula

[tex]F = ma[/tex]

[tex]500 = m(75)[/tex]

switch sides

[tex]m\left(75\right)=500[/tex]

Divide both sides by 75

[tex]\frac{m\cdot \:75}{75}=\frac{500}{75}[/tex]

simplify

[tex]m=\frac{20}{3}[/tex]

[tex]m=6.7[/tex] kg

Therefore, we conclude that the mass of a rock with a force of 500 N and an acceleration of 75 m/s² is 6.7 kg.

Hence, option D is correct.

the answer is waxing gibbous moon

Explanation:

.

Answer:

the earthe would fly off into space in a straight line

Answer: The  Answer Is A

Explanation: