Please help with this question !!!!!

To start the magnetic field

Answer: Core muscles protect the spine and keeps it stabilized. Also they can help control movements such as walking and standing. The core helps transfer energy and help us move in different directions. It's important to have a strong set of core muscles.

Explanation:

Answer:

The core muscles stabilize and protect the spine. They help control all movements and make it possible for us humans to walk and stand up right. The core helps us transfer energy, shift our body weight and reach/move in different directions. It is important to have a strong set of core muscles because it makes everyday activities easier.  

Explanation:

Answer:

It’s 12 m/s

Explanation:

Khan approved

A horizontal net force F is exerted on a 2.0 kg object at rest. The object starts at x = 0 m and travels 4.0 m along a horizontal frictionless surface. The net force F as a function of the object's position x is shown below.

What is the velocity of the object?

Answer: 12 m/s

Answer:

68.6N

Explanation:

Given parameters:

Mass of object  = 7kg

Unknown:

Weight  = ?

Solution:

The weight is the downward force of gravity on a body;

              Weight  = mass x acceleration due to gravity

             Weight  = 7 x 9.8 = 68.6N

Answer:

42 Joules

Explanation:

Given that a force of 6.0 Newtons is applied to a block at rest on a horizontal frictionless surface over a 7.0 meter span. How much energy is gained by the block?

The parameters given are:

Distance covered = 7.0 m

The force = 6.0 m

The formula for work done is the product of force and distance. That is,

Work done = force × distance

Where work done is the same as energy.

Energy = force × distance

Energy = 6 × 7

Energy = 42 Joules.

Therefore, the energy gained by the block is 42 Joules.

Answer:

942.75J

Explanation:

Change in thermal energy is equal to the mass of the given substance times the specific heat capacity times the temperature change.

We've already been given the specific heat capacity, the mass as well as the initial and final temperatures.

So change in temperature will be 35° - 20° = 15°

Thermal energy change = 15 × 15 × 4.19

The final answer is 942.75J

Hope that helped.

Answer:

c

Explanation:

Answer:

it's d

Explanation:

because if you had energy you could do anything but without energy you won't be able to so anything

hope this helps

The horizontal velocity : vox = 1.33 m/s

Given

time 0.75 s

distance = 1 m

Required

the horizontal velocity

Solution

vox = horizontal velocity

x = distance

Can be formulated :

x = vox . t

Input the value :

1 m = vox . 0.75s

vox = 1 : 0.75

vox = 1.33 m/s

Answer: Cross-cutting features are always younger than the surrounding rock.

When material erodes before sediment is deposited on it, a geologic gap results.

Explanation:

The options include:

1. An unconformity is created when lava pours out on Earth’s surface.

2. Faults are the result of volcanic activity.

3. Intrusions and extrusions are sedimentary formations.

4. Cross-cutting features are always younger than the surrounding rock.

5. When material erodes before sediment is deposited on it, a geologic gap results.

The law of superposition simply states that when there is a layers of rocks, we would see that the younger layers will lie and be on top of the layers that are older.

Other tools that can help scientist with relative dating are:

• Cross-cutting features are always younger than the surrounding rock.

• When material erodes before sediment is deposited on it, a geologic gap results.

Explanation:

It's on Edge

Answer:

The correct answer is -

A (the entire green box): Chemical Equation

B (the blue box): Reactants

C (the arrow): Reacts to Form

D (the number): Coefficient

E (the purple box): Products

Explanation:

The chemical reaction of burning methane and oxygen is as follows;

Here, the green part A is the chemical equation that includes various parts that are reactants B, methane, and oxygen, C is an arrow that indicates the formation of products.

2 is here coefficient that indicates the moles of the oxygen which forms carbon dioxide and water in box E is products

Answers:

A (the entire green box):  chemical equation

B (the blue box): reactants  

C (the arrow):  reacts to form

D (the number):  coefficient

E (the purple box):  products

Explanation:

As seen in the picture below,

Answer:

Their differences are most likely due to non shared environmental influences

Zero, neutral means no extra electrons.

Answer:

1600 years half life

3200/1600 is 2 half lifes

first half life takes the sample to 1/2 it's original amount and the second takes it to 1/4 of it's original amount

so 1/4*7gm is 1.75gm

Explanation:

Answer:

16 mm with 14 mm inside diameter.

Answer:

Organic matter decomposition serves two functions for the microorganisms, providing energy for growth and suppling carbon for the formation of new cells. ... Dead plant residues and plant nutrients become food for the microbes in the soil

Explanation:

Answer:

Your answer should be B. a parabola.

Explanation:

The path of the projectile in the absence of friction is a parabola. Therefore, option (b) is correct.

Projectile motion can be described as a form of motion experienced by a projectile that is projected near the surface of the earth and moves along a curved path under the action of gravity. This curved path is to be a parabola, but may also be a straight line in special cases when the projectile is thrown directly upwards.

The study of such motions is known as ballistics and the only force that is actively exerted is gravity, which acts downward, thus giving the object a downward acceleration toward the Earth’s center of mass.

No external force is required to maintain the horizontal velocity component of the object's motion because of the object's inertia. Other forces, such as aerodynamic drag or internal propulsion need additional analysis.

Therefore, the path of an object or projectile is generally parabola in the absence of friction.

Learn more about projectile motion, here:

https://brainly.com/question/11049671

#SPJ2

Answer:

Explanation:

b

Answer:

B. Tomatos reflect red light

Explanation:

The only reason colors exist is because the objects with color reflect all other light except for what they are portrayed as. White reflects all colors, and black absorbs all colors.

If you have any questions feel free to ask :)

Answer:

Explanation: the pigment atoms in the skin absorb photons of all energies except those that correspond to red wavelengths of light, which they reflect back to your eye.

B is more likely the answer

Answer:

The loudness of sound is most closely related to

The pressure within a sound wave determines the loudness of the sound. In this lesson, learn how to calculate the sound pressure level of a sound wave and what this measurement represents.

Explanation:

Answer:

the anwser you are looking for is B

Explanation:

Answer:

(3rd Question about the Black Widow Pulsar)

J1311 is a fast spinning neutron star, which means it emits strong beams of radiation from it's poles.

As the beam of the pulsar sweeps across the surface of the companion star, it heats it up and blows its material outward into space, thus decreasing its mass.

Answer:

A

Explanation: A is a example of Air resistance force, which is a contact force.

Answer:

It is cause by radiation that's the answer

Explanation: the heat project sun rays towards the popcorn which causes it to pop

Answer:

A. you would want to use the 12 ound ball and the 18 mph speed in order to transfer the most kinetic energy

B. KE= 1/2 MV^2 so you would want to maximize both your Mass(weight of the ball) and Velocity(speed of the roll) in order to achive the greatest KE.

C. see image

Explanation:

Full disclosure not totally sure what you are being asked in the last one but I put togethere a rough sketch that is my best guess.

Answer:

Explanation:

The pendulum is at rest ( or balance due to the equal action of opposing forces).

Answer:

Equilimbru or maximum displacement is question.

Answer:

D

Explanation:

a twist is an event that a reader probably wouldn't have been able to predict

Answer:

B- 7

Explanation:

its how many elements, you don't need the amound of each element. you have to count the number of capitalized letters. Hope this helps!