Please help with theses 2 questions.

1. What is the name of 2F?

2.Using the diagram what is the name of the distance between O and 2F?

Answer:

4 times as far

Explanation:

It is kinda hard but this equation should explain x−x0=v0v0a0−a0v202a20=v202a0 so 4 times (and if you would have been going 3 times as fast it would be 9 times as far...)

Answer:

The car would have skidded 4 times as far if it had been traveling twice as fast.

Answer:

The answer is "folding".

Explanation:

It is a physical reconfiguring of the process, which gives a fabric a softer, lightweight shape. It is achieved in a far less simple space to carry or store products.  

Answer:

The power will increase

Explanation:

Power is the rate in which work is done or the rate of doing work

The formula for power is given as follows;

[tex]Power = \dfrac{Work \ done}{Time \ taken \ to \ do \ the \ work}[/tex]

Therefore, power is directly proportional to work, and when work is increased provided all other factors remain constant, the power will be increased proportionately.

As such, for example, when the work is doubled, and the time to do the work is the same, the power has also doubled.

Answer:

The frequencies of the first four harmonics are 248 Hz, 496 Hz, 744 Hz, and 992 Hz

Explanation:

Given;

fundamental frequency, f₀ = 248 Hz

Frequency of the nth harmonic = n x fundamental frequency

First harmonic, f₁ = 1 x f₀ = 248 Hz

Second harmonic;

2f₀ = 2 x 248 Hz = 496 Hz

Third harmonic

3f₀ = 3 x 248 Hz = 744 Hz

Fourth harmonic

4f₀ = 4 x 248 Hz = 992 Hz

Therefore, the frequencies of the first four harmonics are 248 Hz, 496 Hz, 744 Hz, and 992 Hz

Explanation:

a. Net force is mass times acceleration (Newton's second law).

∑F = ma

∑F = (5.0 kg) (2.0 m/s²)

∑F = 10 N

b. The net force is the sum of the individual forces.

10 N = F − 5 N

F = 15 N

c. Friction force here is mgμ.

mgμ = 5 N

(5.0 kg) (10 m/s) μ = 5 N

μ = 0.1

Answer:

1.) 0.68 g/cm^3

2.) 4.3 × 10^16 m^2

Explanation:

Given that the radius of the planet Saturn is 5.85 ✕ 107 m, and its mass is 5.68 ✕ 1026 kg.

Where (The volume of a sphere is given by 4/3 πr3.)

Substitutes r into the parameters

V = 4/3π × ( 5.85 × 10^7)^3

V = 8.39 × 10^23 m^3

Convert cubic meters to cubic centimeters by multiplying the result by 1000000

V = 8.39 × 10^29 cm^3

The mass in gram will be

5.68 ✕ 10^26 × 1000 = 5.68 × 10^29g

Density = mass/ volume

Substitute all the parameters into the formula

Density = (5.68 × 10^29) / (8.39 × 10^29)

Density = 0.68 g/cm^3

2.) The surface area of a sphere is given by 4πr^2.

Substitute r into the formula

Surface area = 4π × (5.85 ✕ 10^7) ^2

Surface area = 4.3 × 10^16 m^2

Explanation:

Speed = distance / time

v = 560 m / 25 s

v = 22.4 m/s

Answer:

22.4

Explanation:

Hope this helps

S= 560m÷25s=22.4m/s

Answer:

To use them in future projects and saving the community.

Explanation:

An explanation about using them in future projects is that you can, for example, use plastic for a biology project. It's also a proven fact that recycling can help the environment so there will be less pollution due to having certain recyclables in the wrong places such as the ocean.

Answer:

Potential energy = 3635.8 Joules

Explanation:

Given that,

Weight lifted by a weight lifter is 12 kg

It lifts to a height of 1.75 m

We need to find the potential energy to the wights now have. The energy possessed by an object due to its position or height above ground is called potential energy. Its formula is given by :

P = mgh

g is the acceleration due to gravity

[tex]P=212\ kg\times 9.8\ m/s^2\times 1.75\ m\\\\P=3635.8\ J[/tex]

So, the potential energy is 3635.8 joules.

Answer: Work can transfer energy between objects and cause a change in the amount of total energy. Work can transfer energy between objects and cause a change in the form of energy. ... When a spring is compressed, the energy changes from kinetic to potential.

Answer:

work can transfer energy

Explanation:

sense there is a ton of effort in work it can accumulate energy. physical and thermal energy. :)

Answer:

A. freezing water widens the cracks in rocks

Explanation:

chemical weathering (from what i can tell anyways) is when water comes in contact with rocks and over time wears it down.

Answer:

11.63

Explanation:

Answer:

If the ball is accelerating down through the air with no horizontal motion, the net forces acting on the ball must follow: C. The gravitational force is greater than the drag.

Explanation:

This is because the gravitational force is directed downward and the drag force opposes the direction of motion (therefore the drag force is directed upwards).  Since the ball is accelerating downwards, the gravitational force must be greater than the drag force in order to create this acceleration.

We know that the other options are incorrect because if the net force on the ball was directed upwards, the ball would be accelerating upwards.  If the net force on the ball was zero, the ball would not be accelerating at all.  If the drag was greater than the gravitational force, then the ball would be accelerating upwards as well.

Hope this helps!

Answer:9

Explanation:

we are adding the numbers given to find the total.

Answer:

free-fall acceleration = 12.25 m/s²

Explanation:

Formula for free fall acceleration is given by the gravity equation;

g = Gm/r²

Where;

M is mass of the Earth

r is radius of the Earth

G is the gravitational constant

Now, that equation applies to the earth.

For this new planet, we are told that the mass = 5 × mass of earth

And radius = 2 × radius of earth.

Thus, free fall acceleration for this planet is;

g_p = G(5m)/(2r)²

g_p = (5/4)(Gm/r²)

Gravitational constant has a value of 6.674 × 10^(−11) N.m²/kg²

Mass of the earth = 5.972 × 10^(24) kg

Radius of the earth = 6378 km = 6378000

Thus;

g_p = (5/4)(6.674 × 10^(−11) × 5.972 × 10^(24))/(6378000²) = 12.25 m/s²

Answer:

the Battery of the phone contains chemical energy which transfers Light and Sound energies.

Answer:

 a = 1.66 m /s²

Explanation:

This is a kinematics exercise

       v = v₀ + a t

        x = v₀ t + ½ a t²

we solve for the initial velocity in the first equation and substitute in the second

       v₀ = v - at

        x = (v- at) t + ½ a t²

        x = vt - a t² + ½ a t²

        x = v t - ½ a t²

we seek acceleration

       a = (v t -x) 2 / t²

let's calculate

        a = (15 6 - 60) 2/6²

        a = 1.66 m /s²

Explanation:

They should make sure the area is dry

Answer:

A pie is cooked in an oven at 200 °C. The aluminium film that covered the pie can be touched soon after it is removed while the pie is still dangerously hot, explain this.

Explanation:

Answer:

Chemical change is characterized by the formation of new substances, and the making and breaking of strong chemical bonds.

Explanation:Decomposition of a compound into its elemental constituents certainly falls under this umbrella

Answer:

Child maltreatment or child abuse is a phenomenon of sexual, physical,  and/or psychological abuse of children.

Five different psychological perspectives of childhood maltreatment are as follows:

Answer:

gravity

Explanation:

gravity pulls you down so for example you will weigh more on earth than on the moon because earths gravitational pull is greater.

Answer:

Explanation:

Allison can measure the mass of the rock by using a scale. An electronic beam balance will be able to give her the mass of the rock to a fairly accurate degree.

To go about measuring the volume of the rock, an indirect approach has to be adopted since the rock is not regular in shape.  Allison would have to adopt a principle that explains that the volume a solid body displaces when immersed in a pool of liquid, is directly equal to the volume of the solid itself.

This means that if the stone is placed in a beaker of water containing an already measured volume of water, the increase in the volume of the water when the stone is immersed is equivalent to the volume of the stone.

Answer:

La frecuencia será la misma en los dos medios, y en el vacio, no varia.

b) Vacío : n = 3,684 10 m 1,33 = 4 900 Å ,3161 10 m 55,1 n

,6 105 10 Hz

3,161 10 m

v 1,93 10 m/s 193548,38 km/s =

1,55

10 3 m/s

n

c

Vidrio v: =

,6 107 10 Hz

3,684 10 m

v 2,25 10 m/s 225 000km/s =

33,1

10 3 m/s

n

c

a

Answer:

Respuesta correcta, opción D: Es la fuerza que un cuerpo ejerce perpendicularmente sobre el área en la que actúa.

Explanation:

La definición de presión es la fuerza que un cuerpo ejerce en dirección perpendicular sobre el área en la que actúa.

Cuando se aplica una fuerza sobre la superficie de un cuerpo, la presión es la siguiente:

[tex] P = \frac{F}{A} [/tex]

En donde:

F es la fuerza aplicada.

A es el área del cuerpo.  

Por lo tanto la opción correcta es la D: es la fuerza que un cuerpo ejerce perpendicularmente sobre el área en la que actúa.

Espero que se sea de utilidad!      

Answer:

Aim at the base of the fire and use short bursts until the fire is out.

Explanation:

Fire extinguishers use CO2 (Carbondioxide) as the extinguishing agent. This is because CO2 is denser than air, and does not support combustion.

Aiming at the base of the fire causes the CO2 to fall on the base of the fire, where the source of the fire is, trapping it, and preventing it from further reacting with air in a combustion reaction. Also, the short burst creates a strong wind that forces the flame to blow out.

Answer:

Objects are affected by gravity the same, but air resistance can affect the speed of an object's descent. An object with more surface area will have more air resistance.

Explanation:

The more surface area the object has to get through the air particles, the slower it will take to fall. ... In space, there is no air

Explanation:

the rock will go in constant slow speed

Answer: Acceleration

Explanation: In this case its most likely acceleration as it has the definition of quick change in velocity. Therefore, the answer is acceleration.

Acceleration refers to the rate of the change in the velocity , therefore the correct answer is option B .

The rate of change of the velocity with respect to time is known as the acceleration of the object. Generally, the unit of acceleration is considered as meter/seconds².

As given in the problem statement we have to find out which terminology from the given list of options refers to the rate of change in velocity .

Speed refers to the rate of the change in the distance, while magnitude refers to the numerical quantity of any measured quantity .

The acceleration of any material = rate of the change of the velocity of the material

Thus , Acceleration refers to the rate of the change in the velocity, therefore the correct answer is option B.

To learn more about acceleration from here , refer to the link given below ;

brainly.com/question/2303856

#SPJ6`

Answer:

A hypothesis is an idea or explanation that you then test through study and experimentation.

Answer:an educated guess