please help lol- brainlist to whomever- P.S---> Do it all please, and don't get any wrong. Then you get brainiist.

the answer is speaker it transform electrical energy into sound energy

Answer:

Lightbulb.

Electric stove element.

Electric space heater.

lightning but it's not a device

Explanation:

Lightning converts electrical energy into light, heat and sound energy

Answer:

I don't do physics , I'm sorry can't help you

Answer:

Hubble's Discovery

cosmic microwave background radiation

Answer:

Three main pieces of evidence for the Big Bang theory are the red-shift of light, cosmic background radiation and types of elements.  

Explanation:

Two major scientific discoveries provide strong support for the Big Bang theory: • Hubble's discovery in the 1920s of a relationship between a galaxy's distance from Earth and its speed; and • the discovery in the 1960s of cosmic microwave background radiation.

Answer:

The correct option is;

d) All of the above

Explanation:

a) In an electric circuit through which electric current flows, it is due to the electric charges which can be the negatively charged electrons or the positively charged protons

b) Voltage is the potential difference that results in current flowing through the circuit, therefore, the voltage is applied across the circuit through which current flows

c) The voltage which is the electric potential difference is the change in potential energy in joules of a given system due to the movement of a test charge (in Coulombs) between points in the electric field, ΔE, divided by the value of the test charge, 'q'

V = ΔE/q

Therefore, all of the above are correct.

Answer:

D is the answer

Explanation:

Answer:

J = 8 kg-s

Explanation:

Given that,

Force, F = 40 N

Time, t = 0.2 s

We need to find the impulse. We know that,

Impulse, J = F×t

So,

J = 40 × 0.2

J = 8 kg-s

So, the impulse is 8 kg-s.

Answer:

2892.31 N

Explanation:

Applying,

P = F×v................ Equation 1

Where P = power of the motor, F = Weight of the load the motor can lift, v = velocity

make F the subject of the equation

F = P/v.............. Equation 2

Given: P = 188 W, v = 0.065 m/s

Substitute into eequation 2

F = 188/0.065

F = 2892.31 N

Hence the weight of the load is 2892.31 N

Answer:

A)   t = 900 s,  the meeting time is 2 h 15 min p.m,   B)  x = 15000 m

Explanation:

A) This is an exercise in kinematics, we must assume that car A is behind so that it can catch up with the slower car B.

car A

           x = x₀ₐ + v₀ₐ t

car B

           x = x_{ob} + v_{oB} t

in this case x₀ₐ = 5 km and the initial position. B is zero

at the bare point the position of the two vile cars is the same.

         x₀ₐ + v₀ₐ t = v_{ob) t

        x₀ₐ = (v_{ob} - v₀ₐ) t

         t = [tex]\frac{x_{oa}}{v_{ob} - v_{oa} }[/tex]

let's reduce the magnitudes to the SI system

          x₀ₐ = - 5 km (1000m / 1 km) = -5000 m

          v₀ₐ = 80 km / h (1000 m / 1km) (1 h / 3600 s) = 22.22 m / s

          v_{ob} = 60 km / h (1000 m / 1 km) (1 h / 3600s) = 16,667 m / s

let's calculate

          t = [tex]- \frac{5000}{16.667 - 22.222}[/tex]

          t = 900 s

let's reduce to minutes

         t = 900 s (1 min / 60 s) = 15 min

Therefore, the meeting time is 2 h 15 min p.m.

B) at what point are they

          x = v_{ob} t

          x = 16,667  900

          x = 15000 m

Answer:

Genotypes are determined by tests. Genotype and phenotype sound the same but mean different things. The phenotype is determined by your genotypes and by your genes or traits, like hair color or type, eye shape and color, body and height. Were all unique, even identical twins, based on the way they look or act. Your uniqueness is based on your genetic make-up, that we inherited from our parents.

Is this better?

Brainliest please!

Answer:

neutral

Explanation:

Answer:

electrical energy into light energy.

hope it helps.

Answer:

electrical energy to light energy

is the correct answer

hope it is helpful to you

and the above answer is correct

Answer:

True

Explanation:

Answer: Fill the cup with water

Add a handle to the cup

Lift the cup over the counter.

Explanation:

The options given are:

- Slide the cup away from the edge

- Fill the cup with water

- Turn the cup upside down

- Add a handle to the cup

- Move the cup to the floor

- Lift the cup over the counter

Potential energy refers to the energy that's being stored in a particular object. The formula for potential energy is given as:

PE = mgh

where,

m = mass

g = gravitational field.

h = height

The actions that'll increase the potential energy of the cup that's placed on the kitchen counter will be:

1. Fill the cup with water - This increases the weight of the cup.

2. Add a handle to the cup - The mass is increased as well.

3. Lift the cup over the counter - The height is increased.

Explanation:

Management is important in every organization for smooth operation, development, and growth, coordination, optimum use of resources, etc. Functions of management include planning, organizing, staffing, directing and controlling.

Answer:

+ 0.07 C

Explanation:

From the question given above, the following data were obtained:

Potential difference (V) = 12 V

Energy (E) = 0.418 J

Charge (Q) =?

The energy (E) , potential difference (V) and charge (Q) are related by the following equation:

E = ½QV

With the above formula, we can obtain the charge as follow:

Potential difference (V) = 12 V

Energy (E) = 0.418 J

Charge (Q) =?

E = ½QV

0.418 = ½ × Q × 12

0.418 = Q × 6

Divide both side by 6

Q = 0.418 / 6

Q = + 0.07 C

Answer:

.0348

Explanation:

right on Acellus

If the needle in the galvanometer is going up, the conclusion about the motion of the magnet is it must be moving right.

The galvanometer is the device used to detect the small current when moving coil is deflected.

When the magnet is moved towards or into the coil of wire, the magnetic field will change and voltage will be generated into the coil. The coil  must be moving to the right when galvanometer going up.

Thus, the conclusion about the motion of the magnet is, it must be moving to the right.

Learn more about galvanometer.

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A scooter is moving with a speed of 18 m/s. Its mass is 20 kg. What is the magnitude of its momentum?

A. 360 kg.m/s

B. 2 kg.m/s

C. 3600 kg.m/s

D. 1.1 kg.m/s

Speed (v) of a scooter = 18 m/s

Mass (m) = 20 kg

Magnitude of its momentum (p) = ?

Since, we know that,

p = mv

So,

p = 20 kg × 18 m/s

p = 360 kg.m/s

Answer:

0 J is left (No amount of the original 35000 J energy is left)

Explanation:

From the question

Kinetic Energy (K.E) = 1/2mv²................... Equation 1

Where m = mass of the car, v = velocity of the car.

make m the subject of the equation.

m = 2K.E/v²..................... Equation 2

Given: K.E = 35000 Joules, v = 120 km/h = (120×3600/1000) = 432 m/s

Substitute these values into equation 2

m  = (2×35000)/432²

m = 0.375 kg.

If a brake is suddenly apply,

Then, the velocity of the car = 0 m/s.

Therefore,

K.E = 1/2(0.375×0²)

K.E = 0 J.

From the baove analysis, No amount of the original 35000 J energy is left.

Answer:

,1) point B

2) point A

I hope it's helps you

Answer:

Learn vocabulary, terms, and more with flashcards, games, and other study tools. ... the complete transfer of valence electron(s) between atoms. It is ... The compound is neutral overall, but consists of positively charged ions called cations and negatively ... an ion with net negative charge, having more electrons than protons.

Explanation:

(a) The magnification is less than 1, the image is smaller than the object. Therefore, the image is real, inverted, and smaller than the object. (b)The  magnification is less than 1 in magnitude, the image is also smaller than the object. Therefore, the image is virtual, inverted, and smaller than the object.

In mirrors, magnification refers to the degree to which an object's size appears to be larger or smaller when reflected in a mirror. The magnification of a mirror is determined by its curvature and distance from the object being reflected.

We can use the mirror equation and magnification formula to solve the problem:

Mirror equation:

1/f = 1/do + 1/di

Magnification formula:

m = -di/do

where

f = focal length of the mirror

do = object distance from the mirror

di = image distance from the mirror

m = magnification

Given:

Radius of curvature, R = 25.0 cm (since the mirror is concave, R is negative)

focal length, f = R/2 = -12.5 cm

(a) For an upright pencil placed 46.0 cm from the mirror:

do = 46.0 cm

Using the mirror equation, we can solve for di:

1/f = 1/do + 1/di

1/-12.5 = 1/46.0 + 1/di

di = -17.2 cm

Since di is negative, the image is formed behind the mirror, which means it is real. Also, the magnification is:

m = -di/do = -(-17.2 cm)/46.0 cm = 0.374

Since the magnification is less than 1, the image is smaller than the object. Therefore, the image is real, inverted, and smaller than the object.

(b) For an upright pencil placed 5.0 cm from the mirror:

do = 5.0 cm

Using the mirror equation, we can solve for di:

1/f = 1/do + 1/di

1/-12.5 = 1/5.0 + 1/di

di = 3.33 cm

Since di is positive, the image is formed in front of the mirror, which means it is virtual. Also, the magnification is:

m = -di/do = -3.33 cm/5.0 cm = -0.666

Since the magnification is negative, the image is inverted. Since the magnification is less than 1 in magnitude, the image is also smaller than the object. Therefore, the image is virtual, inverted, and smaller than the object.

Learn more about magnification here:

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The radiation dose absorbed by a person is measured using the conventional unit rad or the SI unit gray. The biological risk of exposure to radiation is measured using the conventional unit rem or the SI unit sievert.

I hope this helps!

Answer:

change of speed or direction

Answer:

gamma rays

Explanation:

Electromagnetic waves is a propagating medium used in all communications device to transmit data (messages) from the device of the sender to the device of the receiver.

Gamma rays is a type of electromagnetic waves that are dangerous enough to be used to kill cancerous cells.

In the electromagnetic spectrum, gamma rays are known to have the greatest amount of energy and shortest wavelength among the wave particles. They are generally produced through the disintegration of radioactive elements.

Answer:

A. Gamma rays

Explanation:

Proof:

Answer:

please give me brainlist and follow

Explanation:

How to Make Paper Spinners

Step 1: Materials. All you really need is a normal sheet of paper. ...

Step 2: Fold Paper in Half. ...

Step 3: Tear/Cut Along the Fold. ...

Step 4: Fold the Half Sheets. ...

Step 5: Fold Down the Corners of Each Piece. ...

Step 6: Attach the Two Pieces to Create the Spinner. ...

Step 7: Shape Spinner for Best Spinning Abilities. ...

Step 8: Customize.

Answer:

10 points u liar so i wont answer

Explanation:

Answer:

The four forms of energy are:

1. Kinetic Energy

2. Radiation Energy

3. Potential Energy

4. Chemical Energy

Explanation:

Above are listed the four main types of energy. Hope this helps! :)