Which statement describes a concave lens?
It bends light and then gathers light.

It is thicker in the middle than at the ends.

It makes a larger image of the object.

It makes a smaller image of the object.

Answer:

False

Explanation:

The energy flow in the ecosystem is important to maintain an ecological balance. The producers synthesis food by the process of photosynthesis. A part of the energy is stored within the plants. The remaining energy is utilized by the plants in their growth and development.

Answer:

Wood and Cloth

Explanation:

(misread it the first time so I'm here to fix it) bur wood would burn and the same for cloth. Metal and rubber keep in electricity

Answer: If you used links, just insert them into the paper, if it was from a real life article or book just put "around the quote" and the say the book, author and page number

Explanation:

Like this,

Answer:

If you used links, just insert them into the paper, if it was from a real life article or book just put "around the quote" and the say the book, author and page number

Explanation:

Answer:

B.

Explanation:

Since the gravitational force is inversely proportional to the square of the separation distance between the two interacting objects, more separation distance will result in weaker gravitational forces. So as two objects are separated from each other, the force of gravitational attraction between them also decreases.

Answer:

Wind, tides last one is a?

Explanation:

Answer:

Answer choice B. 25 N to the left i think?

Explanation:

Answer: The one with 2 waves.

Explanation:

Wave length is the distance between the tips of each length, the greater the distance the larger the wavelength.

Answer:

Magnetic field lines are closest near the poles of a magnet. The closer the magnetic field lines, the stronger the magnetic field is at that point.

Explanation:

I hope this helps!

Answer:

C. Crest and Trough.

Explanation:

All the other properties are shared among longitudinal and transverse waves. Transverse waves are the technical term for electromagnetic waves because electromagnetic waves are transverse.

Answer:

39,200J

Explanation:

just took the test

The meteor's potential energy if it has a mass of 10kg at an altitude of 400 m will be 39200 J

Potential Energy that depend upon the relative position of various parts of system . It is an energy possessed by an object by virtue of its position or configuration.

mass(m)  = 10kg

g (acceleration due to gravity) = 9.8m/s^2

altitude(height (h)) = 400m

Meteor's Potential energy = m * g * h

                                           = 10 * 9.8 * 400 = 39200 J

correct option will be a) 39200 J

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Answer:

Given:

M= 8kg

F= 7N

Unknown:

Acceleration of a falling object

Formula:

a = F/m

Solution and Final Answer:

a = 7 kg.m/s² ÷ 8 kg

a = 0.88 m/s²

because the divisor and dividend there are the same units so cancel it(kg) then the rest is m/s² so it will be the unit of 0.88 will become 0.88 m/s²

Answer:

A break open rocks from in cracks

Explanation:

Ice freezes in the crack and expands. Plants start growing in the crack and grow out of it. Both of these cause the rock to slowly break in half from the crack.

Hope this helps :)

Answer: C: no change in motion

Explanation:

If two forces are balanced, the net force is 0, which is neither positive nor negative. there will thus be no change in motion

Answer:

A. Net force

Explanation:

Answer:

It would be C.

Explanation:

To receive the most accurate data, she should repeat the experiment multiple times.

Answer  the gerater mass and the faster the object moves the more kenetic enegry there would be

Explanation:

Answer:

The greater the mass and acceleration the more kinetic energy there will be.

Kinetic energy and Explanation

The kinetic energy of an object is the energy that it possesses due to its motion. It is defined as the work needed to accelerate a body of a given mass from rest to its stated velocity. Having gained this energy during its acceleration, the body maintains this kinetic energy unless its speed changes.

Mass and Explanation

Mass is both a property of a physical body and a measure of its resistance to acceleration when a net force is applied. An object's mass also determines the strength of its gravitational attraction to other bodies. The basic SI unit of mass is the kilogram.

Acceleration and Explanation

Acceleration is the rate of change of velocity. Usually, acceleration means the speed is changing, but not always. When an object moves in a circular path at a constant speed, it is still accelerating, because the direction of its velocity is changing.

Answer:

The subjects blood glucose levels will increase after 3 hrs

Explanation:

I had the lab assignment an got a 90

Answer:

Match with A) Single fixed pulley, B) block & tackle, or C) single moveable pulley

changes the direction of effort; input is 1/2 the distance; or system of pulleys

Explanation:

Answer:

single fixed pulley changes direction of effort

single movable pulley input is ½ the distance

block and tackle system of pulleys

Explanation:

I don't have an explanation so just trust me

Answer:

giving an educated guess (without background story) the answer that would make the most sense would be A. large seeds and large beaks

Explanation:

mr clean

Explanation:

Large seeds and large beaks

Answer:

a

Explanation:

Answer:

The voltage is 0.4 v

Explanation:

Given :

I = 0.2 A

R = 2 ohm

so,

=> V = IR

=> V = 0.2×2

=> V = 0.4v

Answer:

Fluorine

Explanation:

Halogens is the group right before Noble Gases, or Group 17. They consist of (from Period 1 to 7):

2 - Fluorine

3 - Chlorine

4 - Bromine

5 - Iodine

6 - Astatine

7 - Tennessine

We can see from the Periodic Table of Elements that Fluorine will be our answer.

Answer:

Fluorine

Explanation:

Answer:

Sound waves does not include in EM Spectrum

So, option C is your answer!

Explanation:

mark me brainliest!!

Answer:

the answer is C :D

Explanation:

Newton's first law states that unless acted with by an external force, the dinnerware will remain immobile. The horizontal force acting on the objects on the table in this example is the frictional force between them and the table cloth, which sets them in motion.

According to Newton's second law, the force required to accelerate the tableware is proportional to the rate of acceleration. When the tablecloth is slowly pushed, the dinnerware adjusts to fit the modest rate of acceleration and moves with it. When the tableware is pulled swiftly, it needs to accelerate at a faster pace to keep up; but, the effort required to do so is larger than the frictional force available, thus it lags behind. The tableware 'stays put' when the cloth is tugged quickly.''

This question covers one of the most enigmatic aspects of our universe! Inertia is the easy answer to your question. In other words, because of inertia, when you remove the table linen off a table full of dishes, the dishes stay put. Matter's inertia is a property that characterizes its resistance to change in motion. When you're jogging and try to turn, you'll find that the faster you go or the bigger you are, the more difficult it is to shift direction.

Other examples of inertia include the following. Another example of inertia is when you are riding in a car and the driver rounds a corner and you feel pushed toward the door or over to the driver.

The dishes' inertia comes into play when the magician removes the cloth from underneath them.

The propensity of objects to resist changes in their state of motion is known as inertia. The dishes seek to preserve their original condition of rest when the fabric is quickly pulled because of inertia.

The dishes' and the cloth's friction is insufficient to rapidly overcome this inertia. As a result, the dishes initially hold in place before friction gradually takes over and causes them to slide.

Thus, the careful balance between inertia and friction results in this seemingly supernatural effect, producing a visually stunning illusion.

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Answer:

Filter poisons from the blood!!! Hope this helped u have a great day :)

Explanation:

Answer:

Calories

Explanation:

mark me brainliest!!

Answer:

Tail Rotor

Explanation:

Although it is the smallest, it can rotate much faster than the other blades.

Answer:

C (the part of the blade that is halfway between the end and where it connects to the helicopter)

Explanation:

In photosynthesis chloroplast inside the leaf contain chlorophyll which captures light energy for photosynthesis.

hope this helps you

have a good day.