I’ll give brainliest if you can answer the question in the picture and the question below

After the tuning fork a is vibrated, the tuning fork b is vibrated. The tuning fork b is vibrating because...

A. Resonance
B. Interference
C. Doppler effect
D. Phase

Answer:

Workdone = 3000Nm

Explanation:

Given the following data;

Force, F = 1000 N

Distance, d = 30 m

We know that workdone is given by the formula;

Workdone = force * distance

Substituting into the equation, we have;

Workdone = 1000 * 30

Workdone = 3000Nm

Answer:

Metamorphic

Explanation:

Metamorphic rocks form when rocks are subjected to high heat and high PRESSURE.

Answer:

C. [tex]6.9\times 10^2\ \text{N}[/tex]

Explanation:

[tex]\text{Supplied force}=2\times 10^2\ \text{N}[/tex]

M = Mechanical advantage = 3.43

Mechanical advantage is given by

[tex]M=\dfrac{\text{Weigh of crate}}{\text{Supplied force}}\\\Rightarrow \text{Weigh of crate}=M\times \text{Supplied force}\\\Rightarrow \text{Weigh of crate}=3.43\times 2\times 10^{2}\\\Rightarrow \text{Weigh of crate}=6.86\times 10^2\ \text{N}\approx 6.9\times 10^2\ \text{N}[/tex]

The weight of the crate is [tex]6.9\times 10^2\ \text{N}[/tex].

Answer:

brainliest please

Explanation:

The answer would be static electricity

Answer:

a = 7.5 [m/s²]

Explanation:

To solve this type of problem we must remember Newton's second law, which tells us that the sum of forces on a body is equal to the product of mass by acceleration.

∑F = m*a

where:

∑F = sum of forces [N]

m = mass = 0.1 [kg]

a = acceleration [m/s²]

Now replacing:

[tex]0.9-0.15=0.1*a\\a=7.5 [m/s^{2} ][/tex]

Answer:

Grounded ( neutral)

Explanation:

In electrical works there are usually safety measures which needs to be specially adhered to.

We have to take into perspective the dangers associated with the open neutral (grounded conductor) which is the main treason why NEC 300.13(B) does not permit the continuity of the grounded(neutral) conductor to depend on a receptacle.

Answer:

The mechanical energy of the airplane is 100,500 joules

Explanation:

The given parameters are;

The mass of the airplane = 10 kg

The height at which the airplane is located = 1000 meters

The potential energy of the airplane, P.E. = 100,000 joules

The speed of the airplane = 10 m/s

The kinetic energy of the airplane, K.E. = 500 joules

The Mechanical Energy, M.E. = The Potential Energy, P.E. + The Kinetic Energy, K.E.

M.E. = P.E. + K.E.

∴ M.E. = 100,000 joules + 500 joules = 100,500 joules

The mechanical energy of the airplane, M.E. = 100,500 joules.

Answer:

See explanation

Explanation:

Heat is defined as a form of energy due to temperature difference. Heat is also a measure of the total internal energy of a body.

Heat  has the following effects;

1) Heat causes change of state of a body

2)  Heat changes the temperature of a body

3) Heat causes expansion of a body

4) Heat may alter certain physical properties of a body such as electrical conductivity, density etc

5) Heat causes a change in the pressure and volume of a body

6) Heat may lead to the emission of electrons from metals(thermionic emission)

[tex]ke = \frac{1}{2} m{v}^{2} \\ = \frac{1}{2} (600)( {40}^{2} ) \\ = 300 \times 800 = 240000 = 240kjoule[/tex]

Answer:

237,825 J

Explanation:

Answer:

Explanation:

Try using Density calculator I think it will work

Answer:

180000N

Explanation:

Given parameters:

Acceleration  = 600m/s²

Mass  = 300kg

Unknown:

Force  = ?

Solution:

From Newton's second law of motion;

    Force  = mass x acceleration

Force  = 300 x 600 = 180000N

Answer:

Exons

Explanation:

The sections of DNA (or RNA) that code for proteins are called exons

Answer:

I wants to be a successful person because is wants to stay happy life and I don't wants

Answer: 288 m

Explanation: 288 m is the correct answer because the question states that the ball is thrown at 96 m every second, and our question tells us that the ball travels 3 seconds. This means we have to multiply 96 x 3 = 288 m.

Answer:

288

Explanation:

Answer:

The amount of heat absorbed or released by a substance.

[tex]Q = ml _{v} \\ or \\Q = ml _{f}[/tex]

Answer:

The amount of heat released or absorbed by a substance.

Explanation:

Answer:

sign of the other charge is -ve

Answer:

7.5s

Explanation:

Given parameters:

Velocity  = 30m/s

Deceleration  = 4m/s²

Unknown:

Time it takes for the car to come to complete rest  = ?

Solution:

 To solve this problem, we use the kinematics expression below:

        v  = u + at

 Since this is a deceleration

         v  = u - at

v is the final velocity

u is the initial velocity

a is the acceleration

t is the time taken

         v - u  = -at

         0  - 30  = -4 x t

              -30  = -4t

               t  = 7.5s

Answer:

A parallel circuit

Explanation:

there you go

hope that helps

thanx

Answer:

parallel circuit

Explanation:

Answer:

3.mechanical is the answer

Mechanical energy is missing in the windmill energy transformation.

Wind> Mechanical> Electrical. Hence option (3) is correct.

The process of using the wind to produce mechanical or electrical energy is known as wind power or wind energy. The kinetic energy of the wind is transformed into mechanical power by wind turbines. This mechanical energy can be used to particular activities (such pumping water or grinding grain) or can be transformed into electricity by a generator.

When the project size is created to match the energy requirements of the load while simultaneously monetizing economies of scale and equipment track record, wind turbine economics are maximized. A modest turbine (usually less than 10 kW) that can produce the amount of electricity needed by a residence for daily operation is needed for residential onsite energy consumption.

Learn more about wind power here:

https://brainly.com/question/13266865

#SPJ2

saitama is the strongest

Answer:

  R = 0.14  Ω

Explanation:

The resistance of a metal is given by the relation

         R = [tex]\rho \frac{L}{A}[/tex]

where ρ the resistivity is 5.6 10-8 Ω m, they also give the length and the cross section (area)

Let's reduce the magnitudes to the SI system

        L = 200cm (1m / 100cm) = 2.00m

        A = 8.0 10⁻⁷ m²

let's calculate

       R = 5.6 10⁻⁸  [tex]\frac{2.00}{8.0 \ 10^{-7} }[/tex]

       R = 1.4 10⁻¹ Ω

       R = 0.14  Ω

Answer:

m = 80 kg

Explanation:

p = m × v

200 = m × 2.5

2.5m = 200

m = 200/2.5

m = 80 kg

Answer:

sorry for the late.... if u have queries comment me