A truck uses 3750 j in 31 Seconds. Find its power

The age of the universe is 1.4 x 10⁹ years or 4.4 x 10¹⁶ seconds.

Significant figures are used to establish the number which is presented in the form of digits.

14 billion years = 14,000,000,000 years

in two significant figure = 1.4 x 10⁹ years

1 year = 3.154 x 10⁷ seconds

1.4 x 10⁹ years = ?

= 1.4 x 10⁹ x 3.154 x 10⁷

= 4.4 x 10¹⁶ seconds

Thus, the age of the universe is 1.4 x 10⁹ years or 4.4 x 10¹⁶ seconds.

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Here is a draft of the worksheet for the three main plate boundary types:

Plate Boundary (Movement)      Convergent (Colliding)

Diagram

        ||

        ||

        ||

Lithosphere (Created or Destroyed)  

       Created

Geologic Process      Mountain building

Real World Example

        Himalayas (Along India-Eurasia plate boundary in Asia)

References        

APA reference for research      

Plate Boundary (Movement)        Divergent (Separating)

Diagram

          |||||

Lithosphere (Created or Destroyed)      

        Destroyed  

Geologic Process        

         Volcanic eruptions and rift valleys

Real World Example  

        Mid-Atlantic Ridge (Between North America and Europe plates)

References        

         APA reference          

Plate Boundary (Movement)     Transform (Sliding)

Diagram

          |||||||||

Lithosphere (Created or Destroyed)  

       Neither          

Geologic Process  

       Earthquakes

Real World Example        

         San Andreas Fault (California, USA along Pacific-North America plates)

References

          APA reference

Two things are said to be in contact if the smallest distance between a point in one of them and a point in the other one is zero.

Answer:

6.5 ly is equal to 6.15 x 10¹⁶ m

Explanation:

Light year is the unit of length. It can easily be calculated by multiplying the speed of light in vacuum withe no. of seconds in an year. Let us calculate the value of 1 light year in meters.

1 Light Year = (Speed of Light)(Seconds in 1 Year)

1 Light Year = (3 x 10⁸ m/s)(1 year)(365 days/year)(24 h/day)(3600 s/h)

1 Light Year = 9.46 x 10¹⁵ m

Hence, to get the value of 6.5 Light years, in meters, we will multiply both sides by 6.5.

6.5 Light Years = (6.5)(9.46 x 10¹⁵ m)

6.5 Light Years = 6.15 x 10¹⁶ m

OR

6.5 ly =  6.15 x 10¹⁶ m

Therefore, there are 6.15 x 10¹⁶ m in 6.5 ly

Hi there!

False.

Imagine if we released a positive charge between two parallel charged plates (one negative, and the other positive).

Since like charge repels, the positive charge would be repelled by the positive plate and would move towards negative plate, as opposite charge attracts.

The Electric potential of the POSITIVE charge increases as you move closer to the positive plate, with the potential decreasing as you move closer to the negative plate. Since the positive charge will accelerate towards the negative plate, it is LOSING electric potential energy.

As it loses electric potential energy, due to the conservation of energy, it must GAIN kinetic energy. There is work being done on the positive charge due to the potential difference between the plates, which increases its kinetic energy.

Therefore, the given statement is false.

the magnitude of the torque about the point where the beam is bolted into place is 2232.17 N⋅m.

The torque about the point where the beam is bolted into place can be calculated as:

τ = Fd sinθ

where F is the force, d is the distance from the point where the force is applied to the pivot point, and θ is the angle between the force vector and the position vector.

In this case, the force is the weight of the construction worker, which can be calculated as:

F = mg

where m is the mass of the worker and g is the acceleration due to gravity (9.81 m/\(s^2\)).

Substituting the given values, we get:

F = (69.0 kg)(9.81 m/\(s^2\)) = 676.89 N

The distance d can be calculated as the length of the beam from the pivot point to the point where the worker is standing:

d = 3.30 m

The angle θ between the force vector and the position vector is 90 degrees, since the force is acting perpendicular to the beam.

Substituting the values in the torque equation, we get:

τ = Fd sinθ = (676.89 N)(3.30 m)(sin 90°) = 2232.17 N.

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Answer:

\((75.0 \times 30) + (60.0 \times 6.0) = (75.0 \times V) + (60.0 \times 0) \\ 2250 + 360 = 75V \\ 75V = 2610 \\ V = 34.8 \: m {s}^{ - 1} \)

Answer:

The first law of motion describes the principle of law of inertia.

Explanation:

i hope i have been useful buddy.

good luck ♥️♥️♥️.

Given parameters:

Distance 1 = 319 miles  

Time taken 1 = 6 hours

Distance 2 = 221 miles

Time taken 2 = 3 hours

Unknown:

Average speed  = ?

To find the average speed we need find the total distance traveled and divided by the total time taken for the travel.

Speed is a scalar quantity that expresses the distance covered per unit of time.

Mathematically;

   Average speed  = \(\frac{Total distance }{Total time taken }\)

                                = \(\frac{distance 1 + distance 2}{time taken 1 + time taken 2}\)

                               = \(\frac{319 + 221}{6 + 3}\)

                               = 60miles/hr

The average speed of the bus is 60miles/hr

The electron number cannot be used instead because electrons can be removed from or added to an atom (option C)

The element of an atom is determined by its proton count, while the electron count can exhibit variability. Take, for instance, a sodium atom, which encompasses 11 protons and 11 electrons. However, it has the capacity to relinquish one electron, transforming into a sodium ion housing only 10 electrons.

This occurs due to the relatively loose binding of electrons to the nucleus, enabling their removal through the influence of an electric field or alternative mechanisms.

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The work done is 8427 J while the energy expended is  80.25 W.

Work done is defined as the product of the force and the distance. We know that the work done in a gravitational field is given as;

W = mgh

Total mass of the water bucket and chain = 13.9 kg +  19.3 kg = 33.2Kg

Distance covered =  25.9 m

W = 33.2Kg * 9.8 m/s^2 * 25.9 m

W = 8427 J

Recall that the work done = Energy expended

Power = Energy expended/ Time

Power = 8427 J/ 1.75 * 60 seconds

Power = 80.25 W

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In a DC generator, the generated electromotive force (emf) is directly proportional to the rotational speed of the generator's armature and the strength of the magnetic field within the generator.

This relationship is described by the equation for the generated emf in a DC generator:

Emf = Φ * N * A * Z / 60

Where:

Emf is the generated electromotive force (in volts),

Φ is the magnetic flux density (in Weber/meter^2\(meter^2\) or Tesla),

N is the number of turns in the armature winding,

A is the effective area of the armature coil (in square meters),

Z is the total number of armature conductors, and

60 is a constant representing the conversion from seconds to minutes.

From this equation, we can see that the generated emf is directly proportional to the magnetic flux density (Φ) and the product of the number of turns (N), effective area (A), and the total number of armature conductors (Z). This means that increasing any of these factors will result in a higher generated emf.

The magnetic flux density (Φ) can be increased by using stronger permanent magnets or increasing the strength of the field windings in the generator.

The number of turns (N) and the effective area (A) are design parameters and can be optimized for a specific generator. Increasing the number of turns or the effective area will result in a higher generated emf.

Similarly, the total number of armature conductors (Z) can be increased to enhance the generated emf.

By controlling and optimizing these factors, the generated emf in a DC generator can be increased, resulting in higher electrical output. However, it is important to note that there are practical limits to these factors based on the design and construction of the generator.

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Answer:

Explanation:

The diagram showing the illustration of the question is shown on the first uploaded image

Here G represents the base

So the displacement in the x -axis is mathematically represented as

\(X = 11200 + 8400 = 19600 \ m\)

The displacement in the y -axis is mathematically represented as

\(Y 3200 + 1700 = 4900 \ m\)

Generally the resultant displacement is

\(R = \sqrt{ X^2 + Y^2}\)

\(R = \sqrt{ 19600^2 + 4900^2}\)

\(R = 20200\ m \)

Generally the direction of this resultant displacement is mathematically represented as

\(\theta = tan ^{-1} [\frac{Y}{X} ]\)

=>       \(\theta  =  tan ^{-1} [\frac{4900}{19600} ]\)

=>            \(\theta  = 14.03 ^o  \)

Hence the direction is  \(14.03 ^o[\tex] from the horizontal axis

I would say that you may check in ..........g....o...o...g....l....e

Answer:

Option A

Explanation:

In this experiment, when balloon is rubbed on the chair electrons are transferred from the hair to the surface of the balloon thereby making balloon negatively charged and hair positively charged. When two negatively charged balloon are brought close to each other, they repel while when balloon is brought closer to the hair, they attract each other

Hence, option A is correct

Ritalin and Demerol are both controlled substances that have a high risk of abuse and dependence.

Schedule II drugs are believed to have a high abuse potential that could lead to severe psychological or physical dependence. They do, however, occasionally have other known medical applications and can be prescribed by a licensed healthcare provider.

Ritalin is an example of a stimulant, whereas Demerol is an example of an opioid. Thus the drugs that have been mentioned here are drugs that are strictly controlled.

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(a) The amplitude of the wave is 0.2 m.

(b) The period of the wave is  4 s.

(c) The wavelength of the wave is 100 m.

(a) The amplitude of the wave is the maximum displacement of the wave.

amplitude of the wave = 0.2 m

(b) The period of the wave is the time taken for the wave to make one complete cycle.

period of the wave = 5.5 s - 1.5 s = 4 s

(c) The wavelength of the wave is calculated as follows;

λ = v / f

where;

f = 1/t = 1 / 4s = 0.25 Hz

λ = ( 25 m/s ) / 0.25 Hz

λ = 100 m

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Answer:

4m/s

Explanation:

To calculate the speed of an object, we use the formula:

Speed = Distance / Time

So, You can it your self inspect of me.

Good luck

Answer:

Explanation:

Let the required depth be d .

Sound will first travel trough 480 m deep lake . Then it will enter granite layer .   Sound travelling through granite will reach oil level , get reflected and come back to the surface of lake as echo . Total time taken by sound to travel total distance  is .93 s

Total distance = 2d + 2 x 480 m

= 2d + 960 m

speed of sound in granite is given as 6000 m / s and speed through water is 1480 m /s

total time taken

= 2d / 6000 + 960 / 1480 = .93

2d / 6000 + .6486 = .93

2d / 6000 = .2814

d= 844.2 m

Over the time period from t₁ to just before t₃, the two-block-spring system is linear momentum does not change because there are no external forces acting on the system to change its momentum.

Explain why the linear momentum of the two-block–spring system is either constant or not during the time period between t₁ and the time just before t₃?

The linear momentum of the two-block-spring system remains constant from t₁ until just before t₃.

Prior to the collision at time t₂, block A has a momentum to the right that is Pa = ma ×va, whereas block B has a momentum that is Pb = 0 because it is at rest. Because there is no external force acting on the system, its overall momentum is conserved.

All out Ptotal = Dad + Pb = mama × va

Expect there is immaterial erosion between each block and the surface. Take into consideration the spring, block A, and the system for parts (a) to (d).

Following the collision at time t₂, block B experiences a velocity of vb to the right and comes to a stop. Because the collision is elastic, all of the system's kinetic energy is conserved, but momentum is still conserved:

The two-block system is moving to the right at a constant velocity vb from time t₂ to just before time t₃, so the momentum of the system is constant. Ptotal = ma₀ plus mbvb plus mb ×vb

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Answer: In picture 1, heat is flowing from the liquid to the air. In picture 2, heat is flowing from the air to the liquid

Explanation:

I don't know if I answered correctly, if not I can provide another answer

Answer:

The answere is A force that pulls objects toward the center of Earth

Explanation:

Hope this helpe! :)

Answer: It's A because I did this test

Explanation:

Answer:

i got u

Explanation:

The iron will have the higher final temperature. This is because the specific heat capacity of iron is much lower than the specific heat capacity of ice. Specific heat capacity is the amount of heat energy required to raise the temperature of a substance by a certain amount, and it varies from substance to substance. Since the specific heat capacity of iron is lower, it means that it takes less heat energy to raise the temperature of iron than it does to raise the temperature of ice by the same amount. Therefore, when equal amounts of heat are added to equal masses of ice and iron at the same initial temperature, the iron will have a higher final temperature than the ice.

Answer:

A. it contains ultraviolet, visible, and infrared light

Answer:

It is divided into seven ranges of wavelengths

Explanation:

i took the test

The angle to the horizontal the ball was launched at can be determined using trigonometry. Once you have the initial horizontal and vertical velocities, you can use the tangent function to calculate the launch angle.

Velocity is a physical quantity that describes the rate at which an object changes its position. It is a vector quantity, which means it has both magnitude and direction. The magnitude of velocity is the speed of the object, while its direction is the direction of motion.

Time is a concept that refers to the sequence of events that occur in a continuous progression, from the past, through the present, and into the future. It is a way to measure the duration or the length of events or periods, and it is a fundamental aspect of our experience and understanding of the world.

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Answer:

Total energy = 1000J

KE = 500J

PE = 500J

Explanation:

As you may know, the equation for gravitational potential energy is mgh (weight x height)

If the skateboard is halfway down, that means it is at half the height. As the skateboard speeds up (as it goes downward), the potential energy becomes kinetic energy. Since it has 500J of kinetic energy at half way down, it means it had double that amount of Potential energy at the top (1000J). Since half of that became kinetic energy, there is only 500J of PE left.

Total energy = KE + PE = 1000J

KE = 500J

PE = 500J