take a picture of an object in your house, describe the
energy stores and transfers that happen with it. You can be as imaginative as you wish
with the object (choose something unusual), but the stores you identify and transfers
that happen must be real.


pls give me ideas of what to take a photo of for this I'm really stuck :(​

1.25 MV is the numbers below correctly describes.

We know, 1000 volts = 1MV

Given, 1250 volts

We have to convert 1250 volts in MV.

1 volt = \(\frac{1}{1000}\) MV

1250 volts = 1.25 MV

Hence, the correct answer is 1.25 MV.

To learn more about Volts, click here: https://brainly.com/question/29014695

#SPJ4

Answer:

A) refraction experiment   n = n₁ sin θ₁ / sin θ₂

B)  n_A = 1.19 ,    n_B = 1.53

Explanation:

A) This exercise is a method to measure the refractive index of materials, a very useful and simple procedure is to create a plate of known thickness from each material, place the material on a paper with angle measurements (protractor), incline the laser beam and measure the angles of incidence and refraction (within the material), repeat for about three different angles of incidence and use the equation of refraction to determine the index

            n₁ sin θ₁ = n₂ sinθ₂

            n₂ = n₁ sin θ₁₁ /sin θ₂

If the medium surrounding the plate is air, its refractive index is n₁ = 1, the final expression is

            n = n₁ sin θ₁ / sin θ₂

B) For this part, no data are given in the exercise, but we can take 50º as the angle of incidence and measure the angle of refraction. Suppose it is 40º for material A and 30º for material B, the refractive index would be

material A

             n_A = sin 50 / sin 40

             n_A = 1.19

material B

              n_B = sin 50 / sin30

              n_B = 1.53

Mass is constant

\(\\ \rm\Rrightarrow F=ma\)

\(\\ \rm\Rrightarrow m=\dfrac{F}{a}\)

\(\\ \rm\Rrightarrow \dfrac{F_1}{g_1}=\dfrac{F_2}{g_2}\)

\(\\ \rm\Rrightarrow \dfrac{85}{g_1}=\dfrac{490}{10}\)

\(\\ \rm\Rrightarrow \dfrac{85}{g_1}=49\)

\(\\ \rm\Rrightarrow g_1=\dfrac{85}{49}\)

\(\\ \rm\Rrightarrow g_1=1.73m/s^2\)

The strength of the electric field at that point and the force would this charge experiences at that point will be 4.587 N/C and  12.38 N.

The electric field strength is defined as the ratio of electric force to charge.

Given data;

q₁ = 5.4 C

F₁ is the electric force in case1

E is the electric field =?

F₂ is the electric force in case 2

q₂ is the charge 2

The strength of the electric field at that point is;

F₁=Eq₁

E₁=F/q₁

E₁=25.0 N / 5.4 C

E₁=4.587 N/C

The force would this charge experience at that point when the charge is 2.7 C;

F₂=Eq₂

F₂=4.587 N/C × 2.7 C

F₂ = 12.38 N

Hence the strength of the electric field at that point and the force would this charge experiences at that point will be 4.587 N/C and  12.38 N.

To learn more about the electric field strength, refer to the link;

https://brainly.com/question/4264413

#SPJ1

Answer:

The acceleration of the particle as it travels one semicircle is

\(a= \frac{\pi R}{t^2}\)

Explanation:'

Kindly see attached a sketch of a semi-circle

Step one:

given data

velocity =v

let the time taken be t

The path PQM is the distance covered

so distance \(d= \pi R\)

we know that time= distance/velocity

t= πR/v

step two:

velocity =distance/time

\(velocity=\frac{\pi R}{t}\)

also, we know that acceleration is velocity/time

\(a= \frac{\pi R}{\frac{t}{t} }\)

\(a= \frac{\pi R}{t}*\frac{1}{t}\)

\(a= \frac{\pi R}{t^2}\)

The bowling ball has a rotating kinetic energy of 8.573 J and a total velocity of 134.573 J.

A particle or an item that is in motion has a sort of energy called kinetic energy. An item accumulates kinetic energy when work, which involves the energy transfer, is done on it by exerting a net force. The word "kinetic" derives from the Greek "kinesis," which means motion. Any direction can be used to move it. As can be seen, kinetic energy rises with increasing mass and/or speed, and it stays unchanged if an object slows down or accelerates up.

To calculate rotational kinetic energy:

Rotational kinetic energy = (1/2) * I * ω^2

where I is the intertia of solid

I = (2/5) * m * r^2, m is the mass and r is radius

Substituting the given values, we get:

I = (2/5) * 7 kg * (0.109 m)^2

I = 0.00265 kg * m^2

The angular velocity of the ball ω = v / r

let v is the linear velocity of the ball.

Substituting the given values, we get:

ω = 6 m/s / 0.109 m

ω = 55.046 rad/s

by substituting this values into formulae we get

Rotational KE= (1/2) * 0.00265 kg * m^2 * (55.046 rad/s)^2

Rotational KE = 8.573 J

Therefore, the rotational kinetic energy of the bowling ball is 8.573 J.

The translational kinetic energy can be calculated as:

Translational kinetic energy = (1/2) * m * v^2

Substituting the given values, we get:

Translational KE= (1/2) * 7 kg * (6 m/s)^2

Translational KE = 126 J

Therefore, the total KE of the ball is:

Total kinetic energy = Rotational kinetic energy + Translational kinetic energy

Total KE = 8.573 J + 126 J

Total kinetic energy = 134.573 J

Therefore, the total kinetic energy of the ball is 134.57

To know more about motion visits:

https://brainly.com/question/29255792

#SPJ1

The speed of the waves can be expressed to two significant figures as 0.2 m/s. The unit for this expression is meters per second (m/s).

A wave crest is the highest point of a wave. It is the top of the wave, where the wave is moving most up and away from the equilibrium position. It is the point of highest amplitude (height) of the wave and is followed by a wave trough, which is the lowest point of the wave.

The speed of the waves can be calculated using the formula speed = distance over time.

We know the distance between wave crests is 9.0 m and the time it takes for 12 waves to pass the boat is 45 s. Therefore, the speed of the waves can be calculated as:

Speed = 9.0 m / 45 s

Speed = 0.2 m/s

The speed of the waves can be expressed to two significant figures as 0.2 m/s. The unit for this expression is meters per second (m/s).

This calculation shows that the speed of the waves passing the boat is 0.2 m/s. This speed can be further broken down into how many meters the waves travel in one second if necessary.

For more questions related to speed

https://brainly.com/question/13943409

#SPJ1

The acceleration of Thomas is 0.233 m/s^2.

Acceleration is the rate of change of velocity. Thomas the Train chugs along at a velocity of 2 m/s.

Thomas needs to go faster so more coal is shoveled into his engine and he accelerates for 10 seconds until he is going 4.33 m/s.

We are to find the acceleration of Thomas.

The formula for acceleration is given as :

acceleration = (final velocity - initial velocity) / time

In the given problem, the initial velocity of Thomas, u = 2 m/s.

The final velocity of Thomas, v = 4.33 m/s The time for which Thomas accelerates, t = 10 s.

Therefore, the acceleration of Thomas will be given as:

a = (v - u) / ta = (4.33 - 2) / 10s => 2.33 / 10s => 0.233 m/s^2

Thus, the acceleration of Thomas is 0.233 m/s^2.

To summarize, the acceleration of Thomas is 0.233 m/s^2.

For more such questions on acceleration, click on:

https://brainly.com/question/460763

#SPJ8

Answer:

Explanation:

Initial velocity is 18 m/s horizontal.

Time for the car to hit the ground.

t = √(2h/g) = √(2(60) / 9.8) = 3.5 s

The car will land 3.5(18) = 63 m from the base of the cliff.

The energy lost to friction and air resistance is 186 J.

option B.

The energy lost to friction and air resistance is calculated from the change in the mechanical energy of the pendulum.

The initial potential energy of the pendulum at the initial position is calculated as;

PEi = mghi

where;

P.Ei = 12 kg x 9.8 m/s² x 20 m

P.Ei = 2,352 J

The final kinetic energy of the pendulum is calculated as follows;

K.Ef = 0.5 x 12 kg x (19 m/s)²

K.Ef = 2,166 J

ΔE = 2,166 J - 2,352 J

ΔE = -186 J

Learn more about energy lost here: https://brainly.com/question/29148452

#SPJ1

According to Chargaff's rule, the amounts of adenine (A), thymine (T), and guanine (G) in the DNA molecule are equal to each other. The amounts of cytosine (C) and guanine (G) are also equal.

Erwin Chargaff was a biochemist, author, Bucovinian Jew who immigrated to America during the Nazi era, and professor of biochemistry at Columbia University's medical school.

Chargaff found patterns among the four bases, or chemical building blocks, of DNA, which are directly related to DNA's function as the genetic material of living things.

He was born in Austria-Hungary. Heraclitean Fire: Sketches from a Life Before Nature, an autobiography he penned, received positive reviews.

Learn more about Erwin Chargaff here:

https://brainly.com/question/14083251

#SPJ1

The magnitude of the resultant vector, representing the actual path of the boat, is approximately 1.42 m/s.

To find the magnitude of the resultant vector, we need to consider the boat's velocity and the velocity of the river. The boat's velocity is given as 0.75 m/s, and the river's velocity is given as 1.2 m/s.

Since the boat is moving in a river, we can think of the boat's velocity as a combination of two velocities: its own velocity and the velocity of the river. The resultant vector represents the actual path of the boat, considering both velocities.

To calculate the resultant vector, we can use vector addition. The magnitude of the resultant vector can be found by taking the square root of the sum of the squares of the boat's velocity and the river's velocity. Mathematically, we have:

Resultant magnitude = √(boat velocity^2 + river velocity^2)

Plugging in the given values, we have:

Resultant magnitude = √(0.75^2 + 1.2^2)

= √(0.5625 + 1.44)

= √2.0025

≈ 1.42 m/s

For more such questions on resultant vector,click on:

https://brainly.com/question/110151

#SPJ11

To better understand crash dynamics we have to look at "the laws of motion."

The laws of motion

The laws of motion were introduced by Sir Isaac Newton in 1687 in his book Philosophiæ Naturalis Principia Mathematica ("Mathematical Principles of Natural Philosophy"), which defined the laws of motion, or three fundamental laws that govern the movement of bodies. The laws of motion, according to Newton, govern the motion of an object or a system of objects that interact.

It defines the concepts of force and mass, and the fundamental dynamics of motion.The following are the laws of motion:Every object will remain at rest or in uniform motion in a straight line unless compelled to change its state by the action of an external force. The velocity of an object changes proportional to the force applied to it, and the acceleration of an object is proportional to both its force and its mass. For every action, there is an equal and opposite reaction.

Therefore, these laws are necessary to fully grasp crash dynamics because they explain how objects respond to outside forces that cause them to accelerate or decelerate.

For more question laws of motion

https://brainly.com/question/15683343

#SPJ8

Answer:5kgs

Explanation:

Answer:

1.) Q T U W 

Explanation:

1.) QTUW

2.) UW

3.) QU

4.) QTUC

According to first law of thermodynamics

dU = Q - W

Where

dU = change in internal energy

Q = heat added

W = work done by the system

2.) UW

Work is been done on the system. The pressure will surely distort the internal energy of the system

Pressure = Force/area.

3.) QU

The melting process begins because the air temperature around the ice cubes is warmer

The solid ice particles absorb heat energy from the warmer air, giving the particles energy and enabling them to move away from one another.

4.) Chemical reaction can be exothermic or endothermic which involves absorption or release of heat. Since it is subjected to small spark, there is definitely a change in internal energy.

In this exercise we have to have knowledge about thermodynamics in order to identify the alternatives that are correctly classified, so we can say that:

1.) QTUW

2.) UW

3.) QU

4.) QTUC

According to first law of thermodynamics:

\(dU = Q - W\)

Where:

1.) The first alternative corresponds to:

In other words QTUW.

2.) The second alternative corresponds to:

Work happen been finished ahead of the system. The pressure will without doubt deform the internal strength of bureaucracy:

\(Pressure = Force/area\)

In other words UW.

3.) The third alternative corresponds to:

The softening process begins cause the air coldness of some degree around the frozen water cubes happen warmer The complete frozen water particles take in heat strength from the warmer air, bestowing the piece energy and allowing to happen them to move out each one.

In other words QU.

4.) The fourth alternative corresponds to:

Chemical reaction maybe exothermic or endothermic that involves assimilation or release of heat. Since it happen commit small spark, skilled happen certainly a change in within strength.

In other words QTUC

See more about thermodynamics at brainly.com/question/7206767

Pushing on a car will not change cars mechanical energy because  it does not create mechanical energy.

Mechanical energy is the energy of either an item in motion or the energy that is saved in object via their position. Mechanical strength is also a driving force of renewable strength.

There are types of mechanical energy:  Potential energy and Kinetic energy. Combined, the sum of the 2 is called the overall mechanical power. Mechanical power is countless in nature.

Advantages of Mechanical energy are that this energy source does not not run out and can also be transformed into different types of power. Disadvantages of mechanical energy is that the machines that permit you to have the benefits of mechanical energy can create protection issues and also grow to be worn out and costly to fix.

Learn more about Mechanical energy here:- https://brainly.com/question/28351693

#SPJ1

Answer:

Explanation:

they both involve nuclear reactions that produce energy, but the application are not the same  

Answer:

920000

Explanation:

Each kg contains 1,000 grams

Answer:

I think you are trying to ask 'what happens to the average speed (of humans or animals.) if the distance decreased and time stayed the same (the time such as what hour it is or what second?)' If that is the case then the average speed will be more since the distance decreased. And the time staying the same might affect it I am not fully sure so I will not say anything about that. I hope this helps!

Answer:

weight, acceleration

Explanation:

weight = mass x gravity(meaning the direction of the mass)

acceleration = v-u/t

v-u is the change in velocity

Answer:

3.16 m·s⁻¹ at an angle of 71.6°  

Explanation:

Assume that the diagram is like Fig. 1 below.

The boat is heading straight across the river and the current is directed straight downstream.

We have two vectors at right angles to each other.

1. Calculate the magnitude of the resultant

We can use the Pythagorean theorem (Fig. 2).

R² = (3 m·s⁻¹)² + (1 m·s⁻¹)² = 9 m²·s⁻² + 1 m²·s⁻² = 10 m²·s⁻²

R = √(10 m²·s⁻²) ≈ 3.16 m·s⁻¹

2. Calculate the direction of the resultant

The direction of the resultant is the counterclockwise angle (θ) that it makes with due East .

tanθ = opposite/adjacent = 3/1 = 3

θ = arctan 3 = 71.6°

To an observer at point O, the velocity of the boat is 3.16 m·s⁻¹ at an angle of 71.6°.

The sprinter uses starting blocks to enhance running. When the sprinter pushes on the block the block push in turn with the same force and helps the runner to move forward. Hence, they are using Newton's third law of motion.

Newton proposed three laws of motion. The first law describes the inertia of an object to stay in its current state until an external force acts on it. Second law of motion states that, the force exerted on an object is the product of its mass and acceleration.

Newton's third law of motion states that , for every action, there is an equal and opposite reaction. The sprinters uses the starting blocks to start running where, they push against the block results in a push with an equal force from the block.

This opposite force from the block helps to make the runner run fastly. Hence, Newton's third law is used here.

Find more on Newton's third law of motion:

https://brainly.com/question/29775827

#SPJ1

Answer:

Friction always opposes the motion

HAVE A GREAT DAY :)

The input to the power station is 5x10^9 W. This means that the power station requires an input of 5x10^9 watts to produce an electrical power output of 1.9x10^9 watts with an efficiency of 38%.

The efficiency of a power station is defined as the ratio of its output power to input power. Therefore, we can use the efficiency and the electrical power output of the power station to calculate its input power as follows:

Efficiency = Output power / Input power

Solving for input power, we get:

Input power = Output power / Efficiency

Substituting the given values, we get:

Input power = 1.9x10^9 W / 0.38

Input power = 5x10^9 W (to two significant figures)

The rest of the input power is lost as heat due to inefficiencies in the power generation process.

for more questions on power
https://brainly.com/question/1634438
#SPJ11

Answer:

I cant really see the imagine

Explanation:

This is the period in a simple harmonic motion which is 2 seconds in this question.

The period of an oscillatory object can be defined as the total time taken  by a vibrating body to make one complete revolution about a reference point.

We are given the below question

2×3.14√(1.0m/(9.8〖ms〗^(2) )= T

This question can as well be expressed as

2π√(L/g) which is equal to period T.

In a nut shell, Period T = 2×3.14√(1.0m/9.8)

T = 6.28√0.102

T = 6.28 × 0.32

T = 2.006 s

Therefore, the period T of the oscillation is 2 seconds approximately.

Learn more about Period here: https://brainly.com/question/12588483

#SPJ1