Which of the following is composed of two conductors separated by an insulator? O A. A resistor O B. Light C. A point charge O D. A capacitor​

Answer:

Long question good luck:)

Explanation:

Answer:7

Explanation:

because its the right answer

Explanation:

Just one 60 minute walk through tiny hills, with a 10 pound backpack, can consume over 600 calories because you weigh about 100 lbs. Lead to increasing the slope of such hills, and it would be equal to 800 calories for calorie burning.

Answer:

Explanation:

Using the equation of motion

V² = u²+2g∆H

v is the final velocity

u is the initial velocity = 0m/s

g = 9.8m/s²

∆H = 12.7-1.5 = 11.2m

Substitute

v² =0²+2(9.8)(11.2)

v² = 219.52

v = √219.52

v = 14.82m/s

Hence the final.speed of the ball is 14.82m/s

The wave which has the longest frequency if, listed from smallest to largest are gamma ray, x-rays, ultraviolet, visible, infrared, microwave, and radio is radio waves and gamma rays have the highest frequency.

The oscillations between an electric field and a magnetic field produce waves known as electromagnetic waves or EM waves. In other words, magnetic and electric fields oscillate to form electromagnetic (EM) waves.

The term "electromagnetic spectrum" (EMS) refers to the entire range of electromagnetic radiation that is now understood. Wavelengths rise from roughly 10⁻¹⁸ m to 100 km, and frequencies fall from 3 × 10²⁶ Hz to 3 × 10³ Hz in this range.

The following list of the seven electromagnetic waves is organized by decreasing wavelength and increasing frequency and energy: X-rays, gamma rays, UV rays, visible light, radio waves, microwaves, and infrared waves.

Thus, radio waves have the longest frequency and gamma rays have the highest frequency.

To know more about electromagnetic waves:

https://brainly.com/question/3101711

#SPJ2

Answer:

C

Explanation:

The United States has a mixed economy it works according to economic system that features characteristics in both capitalism and socialism it makes economy system protects some private properties and allows a level of economic freedom in the use of capital

Answer:

C. is Levi's fav letter

Explanation:

i thought that ray was ugly but NAH

Answer:

definitely not me

Explanation:

why would I?

Answer:

A force is a push or pull upon an object resulting from the objects interaction with another object

Answer:

Why is gravity so weird? No force is more familiar than gravity — it's what keeps our feet on the ground, after all. And Einstein's theory of general relativity gives a mathematical formulation for gravity, describing it as a “warping” of space.

Answer:

Because it pulls us down to the centre the earth

The conservation of momentum P states that the amount of momentum remains constant when there are not external forces.

We don't have external forces, so:

[tex]P_0 = P_1\\m_bv_{0b}+m_pv_{0p}=m_bv_{1b}+m_pv_{1p}\\[/tex]

Where:

Solving for v0b:

[tex]v_{0b} =\dfrac{m_bv_{1b}+m_pv_{1p}- m_pv_{0p}}{m_{b}}\\\\v_{0b} =\dfrac{(7\;kg)(4\;m/s)+(2\;kg)(6\;m/s)- (2\;kg)(0 \;m/s)}{7\;kg}\\v_{0b}=\dfrac{40}{7}\;m/s\\\\\boxed{v_{0b}\approx5.71\;m/s}[/tex]

The original velocity of the ball is 5.71 m/s.

The principle of conservation of momentum: In a closed system, The total momentum before collision is equal to total momentum after collision.

From the principle of conservation of momentum,

MU+mu = MV+mv.................... Equation 1

Where M = mass of the bowling ball, m = mass of the pin, U = initial velocity of the bowling ball, u = initial velocity of the pin, V = final velocity of the bowling ball, v = final velocity of the pin.

From the question,

Given: M = 7 kg, m = 2 kg, u = 0 m/s (at rest), v = 6.0 m/s, V = 4 m/s.

Substitute these values into equation 1 and solve for U

7(U)+2(0) = 7(4)+2(6)

7U = 28+12

7U = 40

U = 40/7

U = 5.71 m/s.

Hence, The original velocity of the ball is 5.71 m/s.

Learn more about velocity here: https://brainly.com/question/6237128

Answer:

The shortest possible distance is  [tex]|s| = 91.9 \ m[/tex]

Explanation:

From the question we are told that

   The mass of the car is   [tex]m = 1800 \ kg[/tex]

    The speed along the horizontal road is  [tex]v_o =u = 18.4 \ m/s[/tex]

     The static friction coefficient is  [tex]\mu_s = 0.188[/tex]

      The kinetic friction coefficient is  [tex]\mu_k = 0.1316[/tex]

Generally the static frictional force acting on the car is  mathematically represented as

          [tex]F_f = m * g * \mu_s[/tex]

Generally the force propelling the car is mathematically represented as

        [tex]F = m * a[/tex]

Here a is the maximum acceleration

at the point which the car stops ,

       [tex]F = F_f[/tex]  

=> [tex]m * g * \mu_s = ma[/tex]

=> [tex]g * \mu_s =a[/tex]

=> [tex]a = 9.8 * 0.188[/tex]

=> [tex]a = 1.8424 \ m/s^2[/tex]

Generally from kinematic equation

    [tex]v^2 = u^2 + 2as[/tex]

Here v  is the final velocity of the car and the value is zero given that the car comes to rest

So

        [tex]0^2 = 18.4^2 + 2* 1.8424 s[/tex]

=>     [tex]s = - \frac{18.4^2}{2 * 1.8424}[/tex]

=>     [tex]|s| = 91.9 \ m[/tex]

Answer:

You can go to youtub and search 4 week flexibility programs and use that and add the principle of progression.

Answer:

r

Explanation:

Answer:Na2S

Explanation:

Doing assignment

Answer:

No, the size of a bicycle tire will not affect the distance traveled when pedaling, unless you are talking about the limits of the range. ...Proportional, which means that changes in wheel diameter or gear ratio X will cause the bicycle to travel X times.

Answer:

A.  Kinetic energies are equal.

Explanation:

The kinetic energy of the bodies will be equal since the mass and speed are the same.

Kinetic energy is the energy due to the motion of a body.

Mathematically;

           K.E  = [tex]\frac{1}{2}[/tex] m v²

m is the mass

v is the speed

 The kinetic energy is a scalar quantity with no regard for direction.

Answer:kinetic energies are equal

Explanation:

Answer:

0.667 m/s

Explanation:

Given that,

Mass of a rubber bullet, m₁ = 20 g = 0.02 kg

Initial speed of rubber bullet, u₁ = 60 m/s

Mass of the wood block, m₂ = 3 kg

Initial speed of the wooden block, u₂ = 0

A rubber bullet hits the stationary wood block. The rubber bullet  ricochets off the wood block with a velocity of 40.0 m/s in the opposite  direction.

Final speed of rubber bullet, v₁ = -40 m/s

Using the conservation of momentum. It will remains conserved. Let v₂ is the velocity of the wood block.

[tex]m_1u_1+m_2u_2=m_1v_1+m_2v_2\\\\0.02 \times 60+3\times 0=0.02 \times (-40)+3\times v_2\\\\1.2=-0.8+3v_2\\\\2=3v_2\\\\v_2=0.667\ m/s[/tex]

So, the velocity of the wood block is 0.667 m/s.

Answer:

B. Reaction time

Explanation:

Don't have an explanation. Sorry!

Answer:

b. Double the length of the wire

Explanation:

I just took the test.

When we Double the length of the wire would double the resistance in a wire would double. The correct option is B.

Resistance is the obstruction of electrons in an electrically conducting material.

The mathematical relation for variation in resistance with length is given by

R = ρ*L/A

where r is resistance

ρ is the resistivity constant for

L is the length of the wire

A is an area of the cross-section for the wire

As evident from the above relation that resistance is directly proportional to the length of the wire keeping other parameters constant

Thus, by Doubling the length of the wire the resistance of the wire will be doubled, therefore the correct answer is B.

Learn more about resistance,here

https://brainly.com/question/14547003

#SPJ2

Answer:

The helium molecules move closer together when it's cold causing the balloon to deflate

Explanation:

The possible reason behind it is: the temperature of outside was low, so the Helium gas inside the balloon compressed and  it was partially deflated at the car. When she returned to the house, temperature of the gas of the balloon rises again and  it was fully inflated again.

The experimental gas law known as Charles' law, commonly referred to as the law of volumes, illustrates how gases tend to expand when heated. Charles's law can now be expressed as follows:

The Kelvin temperature and the volume will be directly proportional when the pressure on a sample of a dry gas is kept constant.

This direct proportional relationship can be expressed as follows:

V∝T.

Hence, as the temperature is low outside the house, the balloon was partially deflated at the car and the temperature rises again when it was inside the house, so  it was fully inflated again inside the house.

Learn more about Charles' law here:

https://brainly.com/question/16927784

#SPJ2

Answer:

Explanation:

The answer is [C]

Substances like oil or graphite spray are examples of - lubricants.

Lubrication is the control of friction and a friction-reducing film between moving surfaces such as the given diagram. The lubricant used can be a fluid, solid, or plastic substance.

Thus, oil or graphite spray are examples of - lubricants.

Learn more:

https://brainly.com/question/1142755

Answer:

b) farther

Explanation:

The range of the bullet shot horizontally just above the horizontal ground is given as;

[tex]R_1 = \frac{u^2sin(2\theta)}{g}[/tex]

where;

θ is the angle of projection with the horizontal ground = 0

R₁ = 0

The range of the bullet shot at an angle of 30 degrees with the same initial velocity as the first bullet is given as;

[tex]R_2 = \frac{u^2sin(2 \theta)}{g} \\\\R_2 = \frac{u^2sin(2*30)}{9.8}\\\\R_2 = 0.088u^2[/tex]

Therefore, the second bullet will travel a horizontal distance that is farther

Answer:

The answer is "Slowing down ".

Explanation:

please find the complete question in the attached file.

In this question, if the block B weight were accounted for by kinetic the friction of frame A, because the blocks pushed at a consistent speed throughout the beginning.

Afterward, on block A, the resistance intensity rises, which allows frames to also be negative, which is defined in the graph, that's why the answer Slowing down is correct.

Answer:

reflection

Explanation:

Answer:

reflection

Explanation:

A p e x

Answer:

A. 148.23 m

B. 2.75 m/s

Explanation:

The following data were obtained from the question:

Time of flight (T) = 11 s

Maximum height (h) =?

Initial velocity (u) =?

Next, we shall determine the time taken for the ball to get to the maximum height. This can be obtained as follow:

Time of flight (T) = 11 s

Time (t) to reach the maximum height =.?

T = 2t

11 = 2t

Divide both side by 2

t = 11/2

t = 5.5 s

NOTE: Time to reach the maximum height is the same as the time taken for the ball to fall back to the plane of projection.

A. Determination of the maximum height to which the ball was thrown.

Time (t) to reach maximum height = 5.5 s

Acceleration due to gravity (g) = 9.8 m/s²

Maximum height (h) =?

h = ½gt²

h = ½ × 9.8 × 5.5²

h = 4.9 × 30.25

h = 148.23 m

B. Determination of the initial velocity.

Maximum height (h) reached = 148.23 m

Acceleration due to gravity (g) = 9.8 m/s²

Initial velocity (u) =?

u² = h/2g

u² = 148.23 / (2 × 9.8)

u² = 148.23 / 19.6

Take the square root of both side

u = √(148.23 / 19.6)

u = 2.75 m/s