SUPER EASY HELPPP!!! WILL GIVE BRAINLIEST

How does the Earth move within the Milky Way?

a.) The Earth, with the rest of the solar system, revolves around the galaxy’s core.
b.) The Earth, orbits the moon, which moves around the galaxy’s core.
c.) The Earth wanders through the galaxy.
d.) The Earth does not move in the Milky Way.

Answer:

the time it took Charilanda to get to the truck is 3s.

Explanation:

Given;

initial velocity of Charilanda, u = 2 m/s

final velocity of Charilanda, v = 5 m/s

acceleration of Charilanda , a = 1 m/s²

let her time of motion = t

\(a = \frac{v-u}{t} \\\\t = \frac{v-u}{a} \\\\t = \frac{5-2}{1} \\\\t = 3 \ s\)

Therefore, the time it took Charilanda to get to the truck is 3s.

Answer:

B

explanation:

The car is not making a change in speed.

In a Zigbee device, the layer responsible for detecting the presence of an RF (Radio Frequency) signal in the currently selected channel is the Physical Layer (PHY).

The PHY layer in Zigbee is responsible for managing the transmission and reception of RF signals. It handles functions such as channel selection, modulation, demodulation, and signal detection. When a Zigbee device is operating in a specific channel, the PHY layer continuously monitors that channel for incoming RF signals. It performs energy detection, which involves measuring the power level of the received signal. By analyzing the received signal strength, the PHY layer can detect the presence of an RF signal in the selected channel.

Learn more about devices:

https://brainly.com/question/28498043

#SPJ11

To calculate the energy stored in the capacitor, you can use the formula:
Energy (E) = 0.5 * Capacitance (C) * Voltage (V)^2

To determine how much energy was stored in the capacitor during the time it was tested, you will need to know the capacitance value of the capacitor and the voltage across it. In this case, you mentioned the voltage across the parallel portion of the circuit is 50 mV. However, the capacitance value is not provided.
To calculate the energy stored in the capacitor, you can use the formula:
Energy (E) = 0.5 * Capacitance (C) * Voltage (V)^2
Assuming you have the capacitance value (in farads) and the voltage (in volts), you can plug in the values into the formula and find the energy stored in the capacitor (in joules).

Learn more about energy at

brainly.com/question/1932868

#SPJ11

Answer:

Time,

t

=

3.1

s

Temperature,

T

=

23.0

∘

Speed of the sound at

23.0

∘

can be given as,

{eq...

Answer:

A.) r = 2t

B.) V = 33.5t^3

Explanation:

Given that a spherical balloon is being inflated and the radius of the balloon is increasing at a rate of 2 cm/s

A) Express the radius (r) of the balloon as a function of the time (t).

Since the rate = 2 cm/s that is,

Rate = radius/ time

Therefore,

2 = r/t

Make r the subject of formula

r = 2t

(B) If V is the volume of the balloon as a function of the radius, find V or and interpret it.

Let assume that the balloon is spherical. Volume of a sphere is;

V = 4/3πr^3

Substitute r = 2t into the formula

V = 4/3π(2t)^3

V = 4/3π × 8t^3

V = 32/3 × πt^3

V = 33.5t^3

Answer:

a. 3.75 s b. 28.125 m

Explanation:

Vi = 15 m/s

Vf = 0 m/s

a = -4 m/s²

i) t = ?

ii) S = ?

i) Using Newton's 1st Eq of Motion

Vf = Vi + at

t = (Vf - Vi) / a

t = (0 - 15) / -4

t = 3.75 s

ii) Using Newton's 3rd Eq of Motion

2aS = Vf² - Vi²

S = (Vf² - Vi²) / 2a

S = (0² - 15²) / 2 x -4

S = 28.125 m

The change in the internal energy of the ideal gas is determined as -28 J.

The work done on the ideal gas is calculated as follows;

w = -PΔV

w = -1.5 x 10⁵(0.0006 - 0.0002)

w = -60 J

ΔU = w + q

ΔU = -60J + 32 J

ΔU = -28 J

Thus, the change in the internal energy of the ideal gas is determined as -28 J.

Learn more about internal energy here: https://brainly.com/question/23876012

#SPJ1

Given,

The length of the slab, L=12 m

The initial temperature, T₁=10°C

The final temperature, T₂=30°C

The coefficient of the linear expansion of the concrete is α=12×10⁻⁶ /°C

The change in the length of the slab is given by,

Where ΔT is the change in the temperature.

Therefore,

On substituting the known values,

Thus the expansion in the length of the slab in the given temperature range is 0.003 m.

Thus the gap between the slabs should be 0.003 m

The longest wavelength of light in the visible region (400 nm - 700 nm) for which destructive interference occurs in a glass sheet coated with a 400 nm-thick layer of oil is 588 nm.

Destructive interference occurs when the path difference between the reflected waves from the top and bottom surfaces of the oil layer is equal to half the wavelength of light.

In this case, we need to consider the maximum path difference for destructive interference, which occurs when the wavelength of light is the longest.

The maximum path difference is given by 2t, where t is the thickness of the oil layer. In this case, t = 400 nm. To find the longest wavelength for destructive interference, we need to find the maximum path difference that is equal to half the longest wavelength in the visible region.

Half the longest wavelength = (700 nm - 400 nm) / 2 = 150 nm

Setting 2t equal to 150 nm and solving for t, we get:

2t = 150 nm

400 nm = 150 nm

t = 75 nm

Therefore, the longest wavelength for destructive interference is twice the thickness of the oil layer:

Longest wavelength = 2t = 2 * 75 nm = 150 nm.

Hence, the longest wavelength for destructive interference in this case is 150 nm, which is within the visible region.

To know more about wavelength, refer here:

https://brainly.com/question/31143857#

#SPJ4

Answer:

Option (c) is the correct answer.

Explanation: When two substances does not exchange any energy with each other then they are said to be in thermal equilibrium with each other. This means the temperature of both the substances will be equal, that is why, there is no exchange of energy between them. Thus, we can conclude that when the objects have the same temperature then you can tell the two objects are in thermal equilibrium.

The new period of oscillation if the mass of the bob is reduced by half is \(\frac{T}{\sqrt{2}}\) or T/√2.

Look at the attachment for a complete question. The period of oscillation of the simple pendulum

where

If we change the mass of the bob and didn't change the rope, the period also will change but the rope constant will not. The ratio of the period between the two condition

T² = 4π²m/k

T₁²: T₂² = m₁ : m₂

T²: T₂² = m : 0.50 m

T²: T₂² = 1 : 0.5

T₂² = 0.5T²

\(T_2 \:=\: \sqrt{0.5T}\)

\(T_2 \:=\: \sqrt{\frac{T}{2}}\)

T₂ = T/√2

Learn more about simple pendulum here: https://brainly.com/question/14005974

#SPJ4

Answer:

90.4 m/s

Explanation:

Take down to be positive.  For objects in free fall, the acceleration is 9.8 m/s².

Given:

Δy = 354 m

v₀ = 35 m/s

a = 9.8 m/s²

Find:

v² = v₀² + 2aΔy

v² = (35 m/s)² + 2 (9.8 m/s²) (354 m)

v = 90.4 m/s

Ferromagnetic materials can be magnetized more easily than other materials due to their ability to have their magnetic domains aligned. This property allows for a stronger and more pronounced magnetic effect compared to non-ferromagnetic materials.

Ferromagnetic materials, such as iron, nickel, and cobalt, have a unique property called ferromagnetism, which allows them to exhibit strong magnetic behavior. One of the key factors contributing to this property is the presence of magnetic domains within the material. Magnetic domains are regions within the material where the magnetic moments of individual atoms align in the same direction.

In the absence of an external magnetic field, the magnetic domains in ferromagnetic materials are randomly oriented, resulting in a net magnetic field of zero. However, when an external magnetic field is

applied, the domains can align in the direction of the field, resulting in a magnetized state.

What sets ferromagnetic materials apart from other materials is their ability to have their magnetic domains easily aligned. This means that the material can be magnetized more easily and exhibit a stronger magnetic effect. Once the external magnetic field is removed, the ferromagnetic material retains some degree of magnetization due to the aligned domains.

This characteristic of ferromagnetic materials makes them highly useful in various applications, including electromagnets, transformers, and magnetic storage devices.

Learn more about ferromagnetic materials here:

brainly.com/question/8266319

#SPJ11

Answer:

Given Mas (m) =63kg

velocity (v) =4.3m/s

momentum (p) =?

p=mv

63kgx4.3m/s

270.9kg.m/s

the momentum =270.9kg.m /s

If a ball of mass 0.63 kilograms is moving at 4.3 meters/seconds, then the momentum of the ball would be 2.709-kilogram meters/second.

It can be defined as the product of the mass and the speed of the particle, it represents the combined effect of mass and the speed of any particle.

Momentum = mass of the object × velocity of the object

As given in the problem we have to calculate the momentum of the ball if it has a mass of 0.63 kilograms and moving with a speed of  4.3 meters/seconds,

The momentum of the ball = 0.63× 4.3

                                             =2.709 kilogram meters/second

Thus, the momentum of the ball comes out to be 2.709-kilogram meters/second.

To learn more about momentum from here, refer to the link;

brainly.com/question/17662202

#SPJ2

This is not a gamma radiation because there is a change in the atomic number of the daughter nucleus. It is rather a beta decay.

We have to note that when we talk about a decay we are talking about the manner that we can be able to break up the atom of a radioactive substance so that we can be able to produce a new substance.

We can see now that what we have here is the loss of a beta ray or an electron from the specie that is shown. This is evidenced by the change in the atomic number of the daughters nucleus.

Learn more about radioactive decay:https://brainly.com/question/1770619

#SPJ1

Answer:

See below

Explanation:

The weight of an object on the surface of a planet is given by

\(F = G\dfrac{mM}{r^2}\\\\\)

where F is the force or weight in Newtons

G is the universal gravitational constant

m is the mass of the object

M is the mass of the planet

r is the radius of the planet

Mars has a smaller radius and smaller mass than the Earth.

The gravitational force on Mars is approximately 38% of the gravitational force on Earth because of the smaller mass and smaller radius

So an object weighing about 10N on earth will weigh only about 3.8N ≈ 4N

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:

d 200 I'm 50 50 on it though

Answer:

Well okay do it what's your question ?

Answer:

yes

Explanation:

Answer:

try  asking ur mom or sibling they might can help u im not sure

Explanation:

Given,

The mass of an object is m = 3 kg

Initial temperature, T1 = 400 K

The specific heat of this object is c = 478 J/kg.K

The heat is Q = 13 kJ

Let T2 be the final temperature.

The formula is used to calculate the final temperature.

Thus, the value of the final temperature is

Therefore, the given answer (a) is correct.

When an object reaches terminal velocity its acceleration becomes zero.

Terminal velocity is also called constant velocity. When there is no acceleration in the moving object. We can take the example of sedimentation.

Sedimentation is the process of settling down the soil particles at the bottom of the water. When soil particles comes down in water there are three forces which act on the particles. Downward force is weight of the particle. Upward force buoyant force of the water, and drag force. When upward forces become equal to the downward force then particles begins to settle down with a constant velocity. which is called terminal velocity.  

To know more about acceleration, here

https://brainly.com/question/12550364

#SPJ4

Answer:

42.69J

Explanation:

The question is not complete, here the complete one

A 2.3 kg mass oscillates back and forth from the end of a spring of spring constant 120 N/m. Depending on that x max =0.7 calculate the total energy

and it velocity vx= -3.4m/s

Step one:

given

mass m= 2.3kg

spring constant k= 120 N/m

x= 0.7m

vx=-3.4m/s

Step two:

The expression for the total energy is

\(Energy= 1/2mv^2 + 1/2Kx^2\)

substituting we have

\(Energy= 1/2*2.3*3.4^2+1/2*120*0.7^2\)

\(Energy= 13.29+29.4\\\\Energy=42.69J\)

Answer:

the photo is a bit blur

Truly, Earth is toward the sun in January than in July due to its elliptical orbit across the solar.

The difference in solar radiation is small between those months compared to the bigger version triggered by the tilt of the earth's axis towards the solar in the Northern Hemisphere summertime and away in NH iciness.

It is all astronomy the tilt of the Earth's axis. Many people consider that the temperature adjustments are due to the fact the Earth is towards the sun in summer and further from the sun in winter. In reality, the Earth is farthest from the solar in July and is closest to the sun in January.

The closer you are to the sun, the hotter the weather. Even a small circulation in the direction of the sun may want to have a huge effect. it is because warming would purpose glaciers to melt, raising sea degrees and flooding the maximum of the planet. without land to soak up a number of the solar's warmth, temperatures on this planet could hold to an upward push.

Learn more about astronomy here:-https://brainly.com/question/27928578

#SPJ4

Answer:

The length at the final temperature is 11.7 cm.

Explanation:

We need to use the thermal expansion equation:

\(\Delta L=\alpha L_{0}\Delta T\)

Where:

So, we have:

\(L_{f}-L_{0}=\alpha L_{0}(T_{f}-T_{0})\)

\(L_{f}=L_{0}+\alpha L_{0}(T_{f}-T_{0})\)

\(L_{f}=0.115+(12.5*10^{-6})(0.115)(1221-22)\)

\(L_{f}=0.117\: m\)

Therefore, the length at the final temperature is 11.7 cm.

I hope it helps you!

The capacitance of one of these axon membranes is 1.7× 10⁻⁸ Farad. The nervous system of the human body contains axons whose membrane each act as small capacitors.

The ability of a material object or device to store electric charge is referred to as capacitance. It is defined as the change in charge as a result of a difference in electric potential, expressed as a ratio of those quantities. There are two types of capacitance that are commonly recognized: self capacitance and mutual capacitance. An electrically charged object exhibits self capacitance, which is measured as the electric potential between the object and ground. Mutual capacitance is the measurement of capacitance between two components, and it is especially important in the operation of a capacitor, which is a basic linear electronic component designed to add capacitance to an electric circuit.

use formula ;

C = \(\frac{Q}{V}\)

Q =   1.2x10⁻⁹C

V =  0.070 V

Charge C = 1.7× 10⁻⁸ Farad

To know more about Capacitance , visit ;

brainly.com/question/28445252

#SPJ1