hello help me pls! i need serious help

Answer:

2ms^2

Explanation:

A = 2000 divided by 1000

A= 2

Answer:

Radiation

Explanation:

The form of heat that does not require matter or particles to happen is known as radiation.

They feel they are, overall, bad people without any particular skills or value, when they are not.

I hope this helps you

God bless and have an awesome weekend

:)

Answer:

Explanation:

Hi! It would be A. Plane mirrors produce only virtual images,and concave mirrors produce real and virtual images.

Plane mirrors construct only virtual images, and concave mirrors make real and virtual images. Thus, this statement best corresponds concave and plane mirrors.

A virtual image exists represented as the opposite of a real image, thus an image that cannot be obtained on a screen stands produced as a virtual image. The motivation for this exists in the fact that the beams of light that form a virtual image never connect therefore a virtual picture can never be projected onto a screen. Examples: Image formed in a plane mirror, an image constructed on the front and back surfaces of a spoon, etc.

Therefore, the (A) option exists as the accurate answer.

To learn more about the virtual image, refer here :

https://brainly.com/question/9861899

#SPJ2

Answer:

According to Newton's second law of motion, the acceleration of an object equals the net force acting on it divided by its mass, or a = F m . This equation for acceleration can be used to calculate the acceleration of an object when its mass and the net force acting on it are known

Explanation:

Answer:

D :)

Explanation:

When an impact causes the car to suddenly change its motion, (D) the people in the car will continue to move in the same direction and at the same speed as before the impact.

Newton's first law of motion states that Unless influenced by an imbalanced force, a body at rest stays at rest, and a body in motion keeps moving in a straight path at a constant pace. This law is commonly known as law of inertia and the resistance of a body to maintain its state of rest is called inertia of rest, same as, the resistance of a body to maintain its state of motion is called inertia of motion.

When a car is moving with certain speed, the car along with the people inside the car is in inertia of motion. In an event of accident, the car comes in rest in no time but the man in the car is still in inertia of motion. So, his body moves forward in the car which may cause injuries. To prevent such injuries, the people inside a car are advised to use safety belts.

So, correct answer  is option (D).

Learn more about Newton's first law of motion here:

https://brainly.com/question/974124

#SPJ2

Answer:

I know that we can identify it

Explanation:

C. structure

Answer:

C

Explanation:

In order to know what organism is it, you must obeserve its structure, behavior, movement but the most important is structure.

Answer:

Black bodies are good absorber of light waves from the sun, while shining surfaces are good reflector of the light waves.

Explanation:

Generally, a black surface or material tends to absorb light waves while under the sun, while a shiny surface is a good reflector of the waves. This is because the black material is a good absorber, and also a good emitter.

The shiny necklace can only absorb little light waves from the sun, thus it reflects most of the light waves. The reflection is the reason for the small circles of light seen around the yard.

However, when in a cool environment the black shirt would cools faster (good emitter) than the shiny necklace.

Answer:

The value is  [tex]t = 18.6 s[/tex]

Explanation:

From the question we are told that

     The average acceleration of the bicycle is [tex]v = -0.44 \ m/s^2[/tex]

      The initial forward velocity is  [tex]u = 8.2 \ m/s[/tex]

Generally from kinematic equations we have that

      [tex]v = u + at[/tex]

Here v is the final velocity of the bicycle and the value is v = 0 m/s

So

      [tex]0 = 8.2 + (-0.44)t[/tex]

=>    t = 18.6 s

Answer:

F = 16 N

Explanation:

Given that,

Mass of the ball, m = 7 kg

Speed of the ball in circular motion, v = 3 m/s

The radius of the string, r = 4 m

We need to find the centripetal force of a ball on a string in circular motion. The formula for the centripetal force is given by :

[tex]F=\dfrac{mv^2}{r}[/tex]

Putting all the values in the above formula

[tex]F=\dfrac{7\times (3)^2}{4}\\\\=15.75\ N[/tex]

or

F = 16 N

Hence, the correct option is (c).

Answer:

the answer is dielectric

hope helps you

Explanation:

Answer:

dielectric

Explanation:

edge

Answer:

A point at which parts of an artifical structure are joined

Answer:

380.1 kg

Explanation:

Answer:

True

Explanation:

I just took the test and got 100

Answer:

I think the correct answer from the choices listed above is option A. The correct arrangement of the substances according to the most to the least ordered particle arrangement should be wood, water and neon gas. Wood should be the first since it is solid which has the most ordered structure as compared to the liquid and a gas. The neon gas is the last since as a gas it has the least ordered structure.

Answer:

A) wood, water, neon gas

Explanation:

wood, water, neon gas.

The particles of solids have an arrangement that is highly ordered and regular. Liquids have an arrangement that is less ordered, and the particle arrangement in gases is the least ordered and regular of the three states of matter.

tell me if im wrong .... hope this helps :)

Answer:

Explanation:

The acceleration of an object given it's mass and the force acting on it can be found by using the formula

[tex]a = \frac{f}{m} \\ [/tex]

f is the force

m is the mass in kg

From the question

5000 g = 5 kg

We have

[tex]a = \frac{55}{5} \\ [/tex]

We have the final answer as

Hope this helps you

Answer:    Review your data. ...

   Calculate an average for the different trials of your experiment, if appropriate.

   Make sure to clearly label all tables and graphs. ...

   Place your independent variable on the x-axis of your graph and the dependent variable on the y-axis.

Hope this helps!!

Answer:

A. higher, lower

Explanation:

Hope this helps!     :3

plz mark as brainliest!

Answer:

for part 1 the answer is 0.303

Explanation:

Newton's first law states that every object will remain at rest or in uniform motion in a straight line unless compelled to change its state by the action of an external force. This is normally taken as the definition of inertia

Answer:

Animals cerate Carbon Dioxide through the process of respiration.

All animals exhale carbon dioxide out through respiration and increase the level of carbon dioxide in the atmosphere and this is intaken by the plants for photosynthesis.

Carbon cycle is the geological  process that balance the amount of carbon dioxide in the atmosphere and biosphere. Carbon dioxide is an essential gas that maintains the living condition on earth.

All animals inhales oxygen and exhales carbon dioxide out. This carbon dioxide is used by plants to carry photosynthesis in plants. Plants absorb this carbon dioxide and combine with water forming oxygen gas and glucose.

This process repeats cyclically and the level of oxygen and carbon in the atmosphere gets balanced. Therefore, animals have a significant role in carbon dioxide cycle and oxygen cycle.

Find more on carbon cycle :

https://brainly.com/question/1657318

#SPJ5

Answer:

Heat

Explanation:

Answer:

Heat conduction, also called diffusion, is the direct microscopic exchange of kinetic energy of particles through the boundary between two systems.

Explanation:

Time taken to reach height is 4 seconds.

Given that;

Velocity of cannon ball = 80 m/s

Height taken = 320 meter

Find:

Time taken to reach height

Computation:

S = ut + (1/2)gt²

320 = (80)(t) + (1/2)(10)(t²)

320 = 80t + 5t²

t² + 16t + 64

So,

t = 4

Time taken = 4 seconds

Learn more:

https://brainly.com/question/14109930?referrer=searchResults

Explanation:

Black or Dark color clothes are good absorbers of heat. The heat from the sun is absorbed by the black shirt, thus making the shirt warmer. The sunlight here is source of heat. The amount of heat absorbed can be calculated according to the stephan's law.

Answer:

The range is 15.15 m and the time in the air is 1.01 s

Explanation:

Horizontal Motion

When an object is thrown horizontally (with angle 0°) with a speed v from a height h, it follows a curved path ruled exclusively by gravity until it eventually hits the ground.

The range or maximum horizontal distance traveled by the object can be calculated as follows:

[tex]\displaystyle d=v\cdot\sqrt{\frac {2h}{g}}[/tex]

To calculate the time the object takes to hit the ground, we use the equation below:

[tex]\displaystyle t=\sqrt{\frac{2h}{g}}[/tex]

The cannon is shot from a height of h=5 m with an initial speed of v=15 m/s. The range is calculated below:

[tex]\displaystyle d=15\cdot\sqrt{\frac {2*5}{9.8}}=15*1.01[/tex]

d = 15.15 m

The time in the air is:

[tex]\displaystyle t=\sqrt{\frac{2*5}{9.8}}[/tex]

t = 1.01 s

The range is 15.15 m and the time in the air is 1.01 s

Answer:

Atoms and molecules

Explanation:

Answer:

C- 60 N to the left

Explanation:

there is a 60n arrow to the left of the box