need help please and thank you​

Answer:

False

Explanation:

If I am not mistaken reflection is when light bounces off of a surface such as snow,water,glass ect. and refraction is when,the fact or phenomenon of light, radio waves, etc. being deflected in passing obliquely through the interface between one medium and another or through a medium of varying density?

Answer:

Answer: Magnitude = [____]; unit = [____].

Explanation:

Answer:

False I think

Explanation:

My reason why is because the muscular systems is when the brain sends signals to move the body

Answer:

a = 3.5 m/s^2

Explanation:

a basic equation of physics is f = ma

we can rearrange that to a= f/m

so plug in your values: a = 175 / 50

you get a = 3.5 m/s^2

Explanation:

For example, a uniform electric field E is produced by placing a potential difference (or voltage) ΔV across two parallel metal plates, labeled A and B. ... The relationship between ΔV and E is revealed by calculating the work done by the force in moving a charge from point A to point B.

Answer:

Av = 25 [m/s]

Explanation:

To solve this problem we must use the definition of speed, which is defined as the relationship between distance over time. for this case we have.

[tex]Av=\frac{distance}{time}[/tex]

where:

Av = speed [km/h] or [m/s]

distance = 180 [km]

time = 2 [hr]

Therefore the speed is equal to:

[tex]Av = \frac{180}{2} \\Av = 90 [km/h][/tex]

Now we must convert from kilometers per hour to meters per second

[tex]90[\frac{km}{h}]*1000[\frac{m}{1km}]*1[\frac{h}{3600s} ]= 25 [m/s][/tex]

Answer:

Is always towards the center of the Earth

Explanation:

As a satellite moves around the Earth in a circular orbit, the direction of the force of gravity is always towards the center of the Earth. At an altitude of 100 km, you would be so high that you would see black sky and stars if you looked upwards.

Answer:

3 to 4

Explanation:

By the time they reach 3 they have achieved speaking 200 or even more

Answer:

Combined kinetic energy =120 joules

Acceleration= [tex]10 m/s^2[/tex]

Explanation:

Given that the mass of the girl= 40 kg.

The mass of the boy= 40 kg.

The mass of the wagon = 20 kg.

The combined velocity of the boy and the wagon, v= 2.0 m/s.

The kinetic energy of any object having mass m and moving with the speed of v m/s, is

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

Here, the combined mass of the boy and the wagon = 40 + 20 = 60 kg.

So, the combined kinetic energy of the boy and the wagon

[tex]=\frac 12 60 \times 2^2= 120[/tex] J

When a force is applied on the object having the mass m, then

F=ma,

where a is the acceleration produced in the object.

Here, F=500 newtons and m= 50 kg.

so, [tex]500=50\times a[/tex]

[tex]\Rightarrow a = 500/50=10 m/s^2[/tex].

Hence, the combined energy is 120 joules and the acceleration is 10 [tex]m/s^2[/tex].

C⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

Answer:

because if the plant that produced that type of energy broke down you would need another type of energy to replace it.

Explanation:

Answer:

one object exerts a force on a second object

Explanation:

i just took this

Answer:

1. Somewhat 2.Yes

Explanation:

Answer:

C,a

Explanation:

Answer:

They are all Carbon isotopes.  Carbon 13 has 6 protons and 7 neutrons

Explanation:

Hope this was helpful! :)

The answer to the question is an orgamisn

Answer:

The thing having life are called living things

Answer: False

People age 65 and older still need exercise. Although the intensity of each workout won't be as high compared to younger ages. Everyone needs exercise to keep their heart healthy, to lower the bad cholesterol, etc.

Answer:

no

Explanation:

very false

Answer:

Treatment options include medications, particularly tricyclic antidepressants and SSRIs,21,22 and psychotherapy. Nonpharmacologic treatment strategies (e.g., massage, acupuncture) may also be beneficial. patients initially presented with symptomatic pain due to a shoulder injury.

Somatoform disorders can be treated by psychotherapy and through medications.

Somatoform disorders are a group of psychiatric disorders whereby patients have a wide variety of clinically significant but unexplained physical symptoms.

The treatment options for somatoform disorders include:

Therefore, somatoform disorders can be treated by psychotherapy and through medications.

Learn more about somatoform disorders at: https://brainly.com/question/27251201

#SPJ2

Answer:

d

Explanation:

Answer:

D

Explanation:

Gravitaional potential energy is energy that is stored by moving an object to a greater height above the ground.

im not sure if its right, but i tried :)

Answer:

Explanation:add them then divide them by 100 I think

Answer:

35 miles

Explanation:

5 times 7

Answer:

both

Explanation:

because when it is hot in summer 5hat is the air and the sund u can warm things up and then it get hot

Answer:

the 3rd pic is correct

Explanation:

because the arrows are going away from each other.

Answer:

Since there is no gravity or friction in Tanya's world, according to Newton's first law she will keep moving at a constant speed.

Explanation:

Newton's First Law, or also called the Law of Inertia, postulates that every body that is not subjected to any interaction (free or isolated body) remains at rest or moves with constant speed. In other words, it is not possible for a body to change its initial state (whether of rest or motion) unless one or more forces intervene.

In this law then the net force (Σ F) applied on a body is equal to zero and explains that to modify the state of motion of a body it is necessary to act on it.

Tanya randhawa is standing on top of a train traveling at 7 km / sec and the train collides with a cow and comes to a complete stop. Since there is no gravity or friction in Tanya's world, according to Newton's first law she will keep moving at a constant speed.

Answer:

Concentrating solar power (CSP) plants use mirrors to concentrate the sun's energy to drive traditional steam turbines or engines that create electricity.

Explanation: