the motion of earth’s molten rock shows characteristic patterns which can be analyzed and explained scientifically. such analysis and explanation is impossible without understanding the principles of which kind of energy?

Answer:

Given,

Object distance, u=25cm

Focal length, f=20cm

From mirror formula

f

1

​

=

v

1

​

+

u

1

​

−20

1

​

=

v

1

​

−

25

1

​

⇒

v

1

​

=−

20

1

​

+

25

1

​

v=100cm

The image will be real, inverted magnified

Explanation:

Given,

Object distance, u=25cm

Focal length, f=20cm

From mirror formula

f

1

​

=

v

1

​

+

u

1

​

−20

1

​

=

v

1

​

−

25

1

​

⇒

v

1

​

=−

20

1

​

+

25

1

​

v=100cm

The image will be real, inverted magnified

The net force performs a total amount of work equal to

(45 N) (0.80 m) = 36 J

on the bullet, and this is in turn is equal to the change in the bullet's kinetic energy by the work-energy theorem. So we have

W = ∆K = 1/2 mv²

since the bullet starts at rest, where m = its mass and v = its final velocity.

Solve for v :

36 J = 1/2 (0.0050 kg) v²   ⇒   v = 120 m/s

Answer:

Hunter is a electrician

Answer: He's an Electrician !

Explanation:

Answer:

Hands opening a bottle with bottle opener

Answer:

C.) 8.7 meters per sec*

Explanation:

Hope this helps!! ( Sorry if my handwriting is sloppy, I´m working on making it neater at the moment. )

The runner’s average speed will be 8.7 m/sec.Average speed is the ratio of the total distance to the total time.

The total distance traveled by an object divided by the total time taken is the average speed.

The given data in the problem is;

d is the distance traveled = 200-meter

t is the time period = 23 seconds.

v is the average velocity to be found;

The average velocity is found as;

\(\rm v = \frac{d}{t} \\\\ \rm v = \frac{200}{23} \\\\ v=8.7 \ m/sec\)

Hence the runner’s average speed will be 8.7 m/sec.

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The value of the total heat lost rate from the pipe is 3596.43 W

We know that the rate of heat loss, Q is given by:

Q = εσA(T1⁴ - T2⁴) + hA(T1 - T2)

where

σ is the Stefan-Boltzmann constant (5.67 × 10⁻⁸ W/m²K⁴)

A is the surface area of the pipe

h is the heat transfer coefficient between the pipe and the air

h = 10.45 + 10.8√V,

V is the wind speed

Here,A = 2πrL

where L is the length of the section of the pipe exposed to the air.

A = 2 × π × 6 × 0.12 = 1.44 m²

The heat transfer coefficient, h = 10.45 + 10.8√V

h = 10.45 + 10.8 × √7

h = 43.44 W/m²K

So, the rate of heat loss, Q = εσA(T1⁴ - T2⁴) + hA(T1 - T2)Q = 0.8 × 5.67 × 10⁻⁸ × 1.44 × (348⁴ - 278⁴) + 43.44 × 1.44 × (348 - 278)Q = 3596.43 W

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A spaceship is traveling at 0.7c when a laser beam is turned on, directed in the direction the ship is traveling.

According to the theory of relativity, the speed of light in a vacuum is always the same for all observers, regardless of their relative velocities.

The speed of the laser light is always c, which is the speed of light in a vacuum, approximately 3.0 x 10^8 meters per second. This is because the speed of light is constant and does not depend on the speed of the source (in this case, the spaceship).

Explanation:

In this scenario, the spaceship is traveling at 0.7c, which means that it is moving at a speed that is 0.7 times the speed of light. When a laser beam is turned on in the direction of the spaceship's motion, the speed of the laser light is still c, as measured by an observer on the spaceship. This is because the speed of light is always the same, regardless of the motion of the source or observer.

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A laser beam is activated and pointed in the direction of a spaceship that is moving at 0.7c.

The speed of light in a vacuum is constant for all observers, regardless of their relative velocities, according to the theory of relativity.

The speed of the laser light is always c, or around 3.0 x 108 metres per second, the speed of light in a vacuum. This is due to the fact that the speed of light is independent of the source's (in this example, the spacecraft's) speed and is always constant.

In this scenario, the spaceship is traveling at 0.7c, which means that it is moving at a speed that is 0.7 times the speed of light. When a laser beam is turned on in the direction of the spaceship's motion, the speed of the laser light is still c, as measured by an observer on the spaceship. This is because the speed of light is always the same, regardless of the motion of the source or observer.

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Answer:8

Explanation: 134.4 divided by 16.8

The Rio Grande is one of the largest river systems in the United States, running over 3,000 kilometers from the mountains of Colorado to the Gulf of Mexico. The river flows from north to south and passes through several states, including Colorado, New Mexico, and Texas.

A comparison of the discharge of the Rio Grande at Albuquerque and at Otowi Bridge (located upstream, near Santa Fe) is as follows: Albuquerque: It is the largest city in New Mexico, situated in the central part of the state. The Rio Grande flows through the city, where it is dammed to form a large lake known as Elephant Butte Reservoir. The discharge of the Rio Grande at Albuquerque is around 100 cubic feet per second (cfs) during normal conditions.

This means that the river has twice the volume of water at Otowi Bridge than at Albuquerque.During times of drought, the river's discharge can drop to dangerously low levels, affecting wildlife and human communities that rely on the river for water. The river's discharge can also increase during periods of heavy rainfall or snowmelt, leading to flooding in downstream communities.

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A.Bohr

His model postulated the existence of energy levels or shells of electrons. Electrons could only be found in these specific energy levels; in other words, their energy was quantised, and couldn’t take just any value. Electrons could move between these energy levels but had to do so by either absorbing or emitting energy.

A. Bohr!

This answer is correct because I read the information.

Answer:

1) 50 seconds 2) 100°C

Explanation:

(Follows formula of Power=Energy/Time)

1) 500W x X = 2000J/kg°C x .25kg x 50°C

X = 50 seconds.

2) 2000W x 300s = 1000J/kg°C x 2kg x X

X = 300

Initial temperature => 400°C-300°C = 100°C

The value that we get by solving the equation is 3. This we get by solving the equation and with the help of given values of u and t.

In mathematical formulas, the equals sign is used to indicate that two expressions are equal. The meaning of the word equation and its cognates might vary slightly depending on the language. For example, an equation in English is defined as any properly expressed formula that consists of two expressions connected by the equals sign, whereas an equation in French is defined as having one or more variables.

According to the question, the given values are :

u = 11 and,

t = 9.

The given equation is :

3 + 11 t - 9 u

Substitute the given values of u and t in the equation :

3 + 11 (9) - 9 (11)

= 3

Hence, after solving the equation, the value we get is 3.

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The potential energy of a current-carrying loop in a uniform magnetic field is at a minimum when the magnetic dipole moment of the loop is aligned with the magnetic field. This means that the loop is in a position of stable equilibrium.

The magnetic dipole moment of a current-carrying loop is given by the product of the current, the area of the loop, and a vector that is perpendicular to the plane of the loop. When the loop is aligned with the magnetic field, the angle between the magnetic dipole moment and the magnetic field is zero, and the potential energy of the loop is at a minimum.

If the loop is tilted away from this position, the potential energy increases, and the loop experiences a restoring torque that tends to align it with the magnetic field.

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Answer:

D

Explanation:

projectile motion

is the answer

The rare disorder that includes the inability to feel pain is called Congenital analgesia. That is option B.

Congenital analgesia is defined as ,the name implies, a genetic disorder that rarely occurs which makes one not to be able to feel pain.

It is an autosomal recessive disorder in which there is genetic changes in the PMRD12 gene.

Therefore, the rare disorder that includes the inability to feel pain is called Congenital analgesia.

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Answer:

4.2 km West of the start

Explanation:

Displacement is a vector quatitiy which means it has direction adn magnitude. It is the distance you are at the very end of the journey from the start.

We can assign one way as a positive direction and the other a negative and then add them

I will say that West is positive and East is negative:

(10.9) + (-6.7) = 4.2km

Once the atomic number of an atom is known, the number of electrons can be deduced depending on if the atom is an ion or a neutral one.

The atomic number of an atom is the number of protons in the nucleus of the atom.

For atoms that are neutral, that is, no net charges, the number of protons is always equal to the number of electrons. In other words, the positive charges always balance the negative charges in neutral atoms.

Thus, if the atomic number of a neutral atom is 6, for example, the proton number will also be 6. Since the proton must balance the electron, the number of electrons will also be 6.

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Let us find first the forces at 1, 2 & 3 points.

We know that ke= 8.99 * 109N.m2 / C2

The forces are: -

F1 = keq1q2 / r212 = {8.99 * 109N.m2 / C2} * {10 * 10-6 C} * {40 * 10-6 C} / {10 * 10-2 m}2

F1 = 359.6 N

F2 =keq1q3 / r213 = {8.99 * 109N.m2 / C2} * {10 * 10-6 C} * {30 * 10-6 C} / {30 * 10-2 m}2

F2 = 29.96 N

F3 = keq2q3 / r213 = {8.99 * 109N.m2 / C2} * {40 * 10-6 C} * {30 * 10-6 C} / {20 * 10-2 m}2

F3 = 269.7 N

Now,

The net force on q1 is F1 – F2,

i.e. F1 + F2 = 359.6 + 29.96

F(q1) = 389.56 N to the left

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Answer: The width of bands will be 2λ

Explanation: Please see the attachments below

Answer:

the ion of an atom will have a different charge but the same mass.The isotope of an atom will have a different mass

The statement that compares the atom of an element to an ion and isotope is: the ion of an atom will have a different charge but the same mass. The isotope of an atom will have a different mass.

Therefore, the statement that compares the atom of an element to an ion and isotope is: the ion of an atom will have a different charge but the same mass. The isotope of an atom will have a different mass.

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Answer:

1.5

Explanation:

resultant force=8-5=3N

using f=ma

a=f/m

=3/2

=1.5

Answer:

KI

Explanation:

Answer:

Look below.

Explanation:

If additives are having negative effects on health and the environment, it would be wise to not use detergents containing these additives. These additives could threaten living things such as humans and animals.

There is concern that extra additives in detergents can have negative health and environmental impacts, then it would be very unwise to use detergents containing these additives

It can be defined as the origination of the contaminant substance that poisonous or harmful to our natural environment.

There are several types of pollution that exist in our nature depending on the state and composition of the contaminant, for example, water pollution can exist due to the eutrophication process.

It would be quite unwise to use surfactants that include these additional ingredients since there is fear that they might have a harmful influence on your well-being and the environment.

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To produce thermal effects, microwave energy is converted to heat in the body or organism.

The answer is d. heat.

Microwave energy, like all forms of electromagnetic radiation, can interact with matter and be absorbed, which can result in the production of heat. In the context of the human body, this heat can cause thermal effects such as tissue damage or changes in cellular metabolism.

When microwave energy is absorbed by matter, it can cause the molecules in that matter to vibrate and generate heat. This is because the energy of the microwaves is converted into kinetic energy of the molecules.

In the human body, certain tissues may absorb more microwave energy than others, depending on their composition and density. For example, the eyes and testes are particularly sensitive to microwave radiation because they contain fluids that can absorb this energy.

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Answer:

\(displacement = ( + 100) + ( - 40) \\ = 60 \: m\)

Answer:

60m

Explanation:

Answer:

1.02s

Explanation:

In this situation the following equation will be useful:



Where:

 is Marissa's car  final velocity

 is Marissa's car initial velocity

 is Marissa's car constant acceleration  (assuming this is the acceleration, since 1269 m/s^{2} does not make sense)

 is the time  it takes to accelerato from  to 

The given statement " As the distance between the slits increases, the distance between the dark fringes decreases. " is False because,

As the distance between the slits increases, the distance between the dark fringes actually increases, rather than decreases. This phenomenon can be understood by considering the principles of interference in waves.

When light passes through multiple slits, such as in a double-slit experiment, it forms an interference pattern on a screen. The interference pattern consists of alternating bright and dark fringes.

The bright fringes occur where the waves from the two slits constructively interfere, resulting in a maximum intensity of light.

The dark fringes, on the other hand, occur where the waves from the two slits destructively interfere, resulting in a minimum intensity or complete darkness.

The distance between adjacent dark fringes, known as the fringe spacing or fringe separation, depends on the wavelength of the light and the distance between the slits. Mathematically, the fringe spacing can be calculated using the formula:

dsin(theta) = mlambda

where d is the distance between the slits, theta is the angle of the fringe from the central maximum, m is the order of the fringe, and lambda is the wavelength of the light.

We can see that as the distance between the slits (d) increases, the fringe spacing also increases, resulting in a greater distance between the dark fringes.

The statement that the distance between the dark fringes decreases as the distance between the slits increases is false.

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The current induced in the loop if its total resistance is 2.00 Ω is 0.0188 A

\(BAcos(theta) = (2.50 T)(0.15 m)(0.05 m)*cos(0)\)

= 0.01875 Wb

When the magnetic field is reduced to 1.00 T, the magnetic flux through the loop changes to:

\(phi_2 = BAcos(theta) = (1.00 T)(0.15 m)(0.05 m)*cos(0)\)

= 0.0075 Wb

The rate of change

\(= (0.0075 Wb - 0.01875 Wb) / (3.00 ms)\)

\(= -3.125*10^{-3} Wb/s\)

\(= -(12)(3.125*10^{-3} Wb/s)\)

= -0.0375 V

The current induced in the loop is given by Ohm's law:

I = EMF / R

where R is the total resistance of the loop. Plugging in the values, we get:

I = (-0.0375 V) / (2.00 Ω) = -0.0188 A

The current induced in the loop if its total resistance is 2.00 Ω is 0.0188 A

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