The phases of the moon occur because the moon revolves around the earth.

True

False

Racial equality directed to a scenario in which individuals of all races and ethnicities exists treated equally, regardless of any differences in physical characteristics.

Racial equality occurs when organizations, like schools, give people of all races equal chances regardless of their physical characteristics, such skin color. It has always been difficult for ethnic minorities to achieve equality, especially in educational institutions.

According to research, black pupils face fewer expectations from their teachers and are more likely to be suspended or expelled than white students. They are also less likely to be enrolled in gifted programs.

The term "racial equality" describes a situation in which people of all races and ethnicities are treated equally, regardless of any physical distinctions. Racial equality occurs when institutions uphold people's moral, legal, and political rights.

To learn more about Racial equality refer to:

https://brainly.com/question/12645755

#SPJ9

The number of oscillations of the toy in a second is 1.25.

The given parameter:

The frequency of an object is calculated as follows;

\(f = \frac{n}{t} \\\\\)

where;

The number of oscillations of the toy in a second is calculated as follows;

\(1.25 = \frac{n}{1} \\\\n = 1.25\)

Learn more about frequency here: https://brainly.com/question/10728818

v=λf

f=v/λ

f=5 m/s : 40 m

f=0.125/s = 7.5/min

When light is transmitted through an object things can happen. The light could be reflected by the thing. Or it could be absorbed by the object. Saying this based on what I know.

Answer:

lighter ones will go faster

Explanation:

assuming you throw both bolwing ball with 10N of force. one is 3kg and the other is 5kg.

by using the equation: F = ma

a = F/m

a = 10/5 = 2m/s^2

a = 10/3 = 3.33333 m/s^2

Answer:

wet farts, JK its condensation.

Without additional information, it is not possible to rank the stars according to size based solely on their apparent magnitude.

The apparent magnitude of a star refers to its brightness as observed from Earth. However, the apparent magnitude does not directly provide information about the size or physical dimensions of the star.

Therefore, without additional information about the stars' sizes or other properties, it is not possible to rank them according to size from largest to smallest based solely on their apparent magnitude.

Without additional information regarding the stars' sizes or physical properties, it is not possible to rank them according to size from largest to smallest solely based on their apparent magnitude.

Apparent magnitude is a measure of how bright a star appears from Earth, but it does not directly indicate the star's size. The size of a star is determined by its radius or diameter, which is not related to its apparent magnitude.

To determine the size of stars, additional measurements such as their luminosity, distance, or spectral type would be needed.

Learn more about magnitude

brainly.com/question/28714281

#SPJ11

Answer:

10 ohm

Explanation:

Since the resistors are arranged in series, their total resistance is their sum.

Hence, Total R = 2+3+5 = 10 ohm

Answer:

24.5 N

Explanation:

The falling object experiences its weight acting downwards and the air resistance in the opposite direction.

The air resistance increases with velocity so there may come a point, depending on the shape of the object and if there is sufficient height, where these 2 forces are equal.

Since the object has no net forces acting on it it will, according to Newton, no longer accelerate but continue with a constant velocity.

This is called Terminal Velocity.

So: Air resistance = weight R = m  R = 2.5 × 9.8  = 24.5N

Answer:

24.5 N

Explanation:

When an object in free fall reaches terminal velocity, Fd = Fg

Therefore, Fd (force of air resistance) = (2.5 kg)(9.8 m/s²) = 24.5 N

Note:  if you have to calculate the terminal velocity, use the formula

Vt = \(\sqrt{2gh}\)

We have that for the Question "Describe what a high and low frequency electromagnetic wave look like:" it can be said that

From the question we are told

Describe what a high and low frequency electromagnetic wave look like:

Generally the equation for the frequency  is mathematically given as

\(f=\frac{1}{t}\\\\and\\\\f=\frac{v}{\lambda}\\\\\)

Therefore

For more information on this visit  

https://brainly.com/question/17756498

The diameter of the moon is 3. 47x\(10^{6}\) m and it subtends an angle of 0. 00904 rad when viewed from the surface of the earth, the distance to the moon from the surface of the earth is approximately 3.83 × \(10^{8}\) meters.

We can use the small angle formula to relate the angle subtended by an object, the distance to the object, and its size

Angle = size / distance

Here, we know the size of the moon (its diameter), and the angle it subtends when viewed from the surface of the earth. We can use this formula to solve for the distance to the moon

Distance = size / angle

Substituting the values given, we get

Distance = 3. 47x\(10^{6}\) m / 0.00904 rad

Evaluating this expression, we get

Distance = 3.83 × \(10^{8}\) m

Therefore, the distance to the moon from the surface of the earth is approximately 3.83 × \(10^{8}\) meters.

To know more about diameter here

https://brainly.com/question/8001878

#SPJ4

Answer:

In the United States,cell carrier services are often considered to be a part of an oligopoly

Explanation:

Cell carrier services are a brand value and imagine

The time taken for the coffee to cool from 93°C to 73°C is approximately 36.1 minutes.

The cooling law is given by:

$$\frac{dQ}{dt}=-k(T-T_0)$$

where Q is the heat in the object, t is the time taken, T is the temperature of the object at time t, T0 is the temperature of the environment and k is a constant known as the cooling constant.

We need to find the time it takes for the coffee to reach a drinking temperature of 73°C given that its initial temperature is 93°C.

Therefore, we need to find the time it takes for the coffee to cool down from 93°C to 73°C when placed in a room temperature of 18°C.

Let’s assume that the heat energy that is lost by the coffee is equal to the heat energy gained by the environment. We can express this as:

dQ = - dQ where dQ is the heat energy gained by the environment.

We can substitute dQ with C(T-T0) where C is the specific heat capacity of the object.

We can rearrange the equation as follows:

$$-\frac{dQ}{dt}=k(T-T_0)$$

$$-\frac{d}{dt}C(T-T_0)=k(T-T_0)$$

$$\frac{d}{dt}T=-k(T-T_0)$$

The differential equation above can be solved using separation of variables as follows:

$$\frac{d}{dt}\ln(T-T_0)=-k$$

$$\ln(T-T_0)=-kt+c_1$$

$$T-T_0=e^{-kt+c_1}$$

$$T=T_0+Ce^{-kt}$$

where C = e^(c1).

We can now use the values given to find the specific value of C which is the temperature difference when t=0, that is, the temperature difference between the initial temperature of the coffee and the room temperature.

$$T=T_0+Ce^{-kt}$$

$$73=18+C\cdot e^{-0.09t}$$

$$55=C\cdot e^{-0.09t}$$

$$C=55e^{0.09t}$$

$$T=18+55e^{0.09t}$$

We can now solve for the value of t when T=93 as follows:

$$93=18+55e^{0.09t}$$

$$e^{0.09t}=\frac{93-18}{55}$$

$$e^{0.09t}=1.3636$$

$$t=\frac{\ln(1.3636)}{0.09}$$

Using a calculator, we can find that the time taken for the coffee to cool from 93°C to 73°C is approximately 36.1 minutes.

For more such questions on time, click on:

https://brainly.com/question/26046491

#SPJ8

Answer:

mm yummy

Explanation:

Displacement of diver , d = 6000-1260 = 4740 m.

Let, time taken be t .

By equation of motion :

\(v^2-u^2=2gs\\\\v=\sqrt{2gs}\\\\v=\sqrt{2\times 9.8\times 4740}\ m/s\\\\v=304.8\ m/s\)

Now , by equation :

v = u +gt

304.8 = 0 + 9.8t

t = 31.1 seconds

Hence, this is the required solution.

The correct answer is b) is positively charged. When the originally neutral electroscope is grounded briefly while a positively charged glass rod is held near it, the electroscope undergoes charging by induction.

Grounding allows the electroscope to temporarily connect to the ground, causing the redistribution of charges. The positively charged glass rod attracts the negative charges in the electroscope, causing them to move towards the ground.

As a result, the electroscope loses some of its negative charges, leaving behind a net positive charge. When the glass rod is removed, the excess electrons do not return immediately, resulting in the electroscope retaining a positive charge. Therefore, the electroscope is positively charged after the glass rod is removed.

To learn more about electroscope , click here: brainly.com/question/31600722

#SPJ11

Substance:-

1. Astronomical observational patterns are used to determine the history of the universe by studying the light emitted or absorbed by celestial objects. Scientists analyze the patterns in the electromagnetic spectrum, such as the distribution of wavelengths, intensity, and spectral lines, to gather information about the composition, temperature, motion, and evolution of celestial bodies.

Astronomical observational refers to the act of observing celestial objects and phenomena in the field of astronomy. It involves the use of telescopes, detectors, and other instruments to collect data and study various aspects of the universe.

2. Mount Wilson and Mount Palomar Observatories were used to observe and collect data about space due to several reasons. Firstly, the locations of these observatories provide advantages for astronomical observations.

3. The NASA Mission Statement is: "To pioneer the future in space exploration, scientific discovery, and aeronautics research." This mission statement reflects NASA's commitment to advancing human knowledge, technological innovation, and exploration beyond Earth's boundaries. NASA aims to push the boundaries of scientific understanding, develop and test new technologies, explore the cosmos, and inspire the next generation of scientists and engineers.

Learn more about spectrometry at:

https://brainly.com/question/27549121

#SPJ4

At the equator, the implied linear velocity is around 17 times quicker for constant. Thus, the day would consist of 85 minutes, or roughly 1.41 hours.

When an object moves across a straight path, its linear velocity is calculated to determine how quickly its displacement changes over time. The quantity is a vector. The linear velocity dimension formula is [M]0[L]1[T]-1.

Linear Feet / Minute is the most common metric of air speed (distance traveled in a unit of time) (LFM). You may calculate the amount of air passing past a point in a duct in a given amount of time by multiplying the air velocity but by cross section area of the duct. Cubic Feet / Minute is typically used to quantify volume flow (CFM).

To know more about Linear Velocity visit:

https://brainly.com/question/13723307

#SPJ4

Cold water does not react with iron. Iron, however, interacts with steam to create iron and hydrogen oxide. Fe3O4 + 4H2 = 3Fe(s) + 4H2O. Iron (II, III) oxide, also known as ferric oxide (Fe3O4), is a combination of Fe O and Fe2O3.

Ferric oxide (Fe2O3) and hydrogen gas are produced when ferrous oxide (Fe O) and water (H2O) combine (H2). This reaction yields a black solid called Fe3O4, which is frequently used as an antirust pigment. Understanding the chemical equation for this reaction is required to determine whether a specific mixture will produce Fe3O4: 2Fe3+(aq)+3H2 = 2Fe(s)+3H2(g) (g). According to this equation, two moles of iron metal will interact with to create two moles of ferric ion and three moles of hydrogen gas, it takes three moles of hydrogen gas. All of the iron will be transformed to Fe3+ ions and no Fe3O4 will occur if the combination only contains one mole of each component.

To know more about Rusting , visit-https://brainly.com/question/13026484

#SPJ13

Answer:

C

Explanation:

The shorter a wire, the less it will be worn down from moving around, and the thicker the wire, the longer it will last.

Short wires with a wide diameter will be the material utilized to build a circuit with the minimum amount of resistance. Then, C is the right answer.

Electrical devices such as resistance, transistors, capacitors, inductors, and diodes are connected via conductive wires or traces that allow the electric current to pass between them.

A closed-loop system in which electrons can move is called a circuit. Electricity is supplied to the circuit by an electricity source, such as a battery. No electrons will travel till the circuit is finished, that is, it goes full round back to the electricity source.

A student wants to build a simple circuit.

The material would be used to design a circuit with the least amount of resistance will be short wires with a large diameter. Then the correct option is C.

More about the circuit link is given below.

https://brainly.com/question/12608516

#SPJ6

Answer:

240.1 m

Explanation:

Potential energy  ( mgh)  is fully converted to Kintetic energy ( 1/2 mv^2)

  equate them

mgh = 1/2 mv^2     divide by 'm'

gh = 1/2 v^2

9.8 h = 1/2 v^2

    19.6 h = v^2         v = sqrt ( 19.6h)     (as given)

                               68.6 = sqrt (19.6 h)     solve for h = 240.1 m

(V(h) - V1) / R1 + (V(h) - V2) / R2 = 0

(V2 - V(h)) / R2 + (V2 - V3) / R3 + (V2 - V4) / R4 = 0

(V3 - V2) / R3 + (V3 - V(h)) / R5 + V3 / R6 = 0

for the 40V voltage source deliver to the circuit.

To use the node-voltage method to find the voltages in the circuit, we need to assign reference nodes and write the node equations based on Kirchhoff's current law.

Step 1: Assign variables to the node voltages.

Let's assign V(h) as the voltage at node h, V2 as the voltage at node 2, and V3 as the voltage at node 3.

Step 2: Write the node equations.

Apply Kirchhoff's current law at each of the nodes.

At node h:

(V(h) - V1) / R1 + (V(h) - V2) / R2 = 0

At node 2:

(V2 - V(h)) / R2 + (V2 - V3) / R3 + (V2 - V4) / R4 = 0

At node 3:

(V3 - V2) / R3 + (V3 - V(h)) / R5 + (V3 - 0) / R6 = 0

Step 3: Simplify the equations.

Rearrange the equations and simplify them:

(V(h) - V1) / R1 + (V(h) - V2) / R2 = 0

(V2 - V(h)) / R2 + (V2 - V3) / R3 + (V2 - V4) / R4 = 0

(V3 - V2) / R3 + (V3 - V(h)) / R5 + V3 / R6 = 0

To know more about Kirchhoff's current law:

https://brainly.com/question/32250936

#SPJ4

The missing word here is Asthenosphere.

The convection in the asthenosphere directly propels the tectonic plates of the earth.

Did you know that the asthenosphere is thought to remain malleable because of heat from deep within the Earth? It is thought to be lubricating the earth's tectonic plates' undersides and enabling movement.

The older, denser portions of the lithosphere that are dragged downward in subduction zones are stored in the asthenosphere, according to the theory of plate tectonics.

The lithosphere above is stressed by convection currents, and the cracking that frequently results manifests as earthquakes.

Magma is forced upward through volcanic vents and spreading centers by convection currents produced within the asthenosphere, which also results in the formation of new crust.

Learn why properties of the asthenosphere are important: https://brainly.com/question/11484043

#SPJ4

Answer:

It is important to use renewal resources because we use so many non- renewable resources that we may lose the ability to make a lot of things like gasoline or power for our cities.

Answer:

be negative

Explanation:

The centrifugal force C = mv^2/r = kq^2/r^2 = P centripetal force. m is the electron mass, q are the proton and electron charges (opposites), and r is the Bohr radius.

Thus 1/2 mv^2/r = 1/2 kq^2/r^2 and KE = 1/2 mv^2 = 1/2 kq^2/r = 1/2 PE

Therefore KE/PE = 1/2, no matter what state the electron is in.