when a resistor with resistance r is connected to a 1.50 v flashlight battery, the resistor consumes 0.0625 w of electrical power. (throughout, assume that each battery has negligible internal resistance.) (a) what power does the resistor consume if it is connected to a 12.6 v car battery? assume that r remains constant when the power consumption changes. (b) the resistor is connected to a battery and consumes 5.00 w. what is the voltage of this battery?

Answer:

i think it is 5 mg is the lowest

Explanation:

The acceleration brought on by gravity will be \(\frac{1}{372}\) g at a height of around 33,890,000 meters above the surface of the Earth.

The acceleration due to gravity decreases as you move farther away from the Earth's surface. To find the height above the Earth's surface where the acceleration due to gravity is \(\frac{1}{372} \cdot g\), we can set up the following equation:

\(g' = \frac{1}{372} \cdot g\)

where g' is the acceleration due to gravity at the desired height and g is the acceleration due to gravity at the Earth's surface.

The acceleration due to gravity at the Earth's surface is approximately 9.8 m/s². Substituting this value into the equation, we have:

\(g' = \frac{1}{372} \times 9.8 \text{ m/s}^2\)

Simplifying the equation, we find:

g' ≈ 0.02634 m/s²

Now, we can use the equation for gravitational acceleration near the surface of the Earth to find the height h where the acceleration due to gravity is g':

\(\begin{equation}g' = \frac{G \cdot M}{(R + h)^2}\)

where G is the gravitational constant, M is the mass of the Earth, and R is the radius of the Earth.

Substituting the known values, we have:

\(\begin{equation}0.02634 \, \mathrm{m}/\mathrm{s}^2 = \frac{(6.67430 \times 10^{-11} \, \mathrm{m}^3/\mathrm{kg}/\mathrm{s}^2) \times (5.972 \times 10^{24} \, \mathrm{kg})}{(6,371,000 \, \mathrm{m} + h)^2}\)

Solving for h, we find:

h ≈ 33,890,000 meters

Therefore, at a height of approximately 33,890,000 meters above the Earth's surface, the acceleration due to gravity will be \(\frac{1}{372}\) g.

To know more about the acceleration refer here :

https://brainly.com/question/29135987#

#SPJ11

The substance with meting point of 240 °C and boiling point of 300  °C is hard plastics. Any volume of alcohol has an 78 °C. Candle wax have higher melting point than water.

Boiling point of a substance is the temperature at which the substance is converts from liquid state to vapor state at which the the vapor pressure equal to the atmospheric pressure.

It is clear from the table that, substance with meting point of 240 °C and boiling point of 300  °C is hard plastics. Boiling point of a substance does not change with change in volume.

Hence, any volume of alcohol has an 78 °C. Candle wax have higher melting point than water.

Oxygen and nitrogen can be differentiated based on their densities and mass.

Find more on boiling point:

https://brainly.com/question/24168079

#SPJ1

Answer:

500ms times 2 would be when the ball reaches the max horizontal distance.

Then to find the angle, use the formula of time to reach max height t = u sin theta / g . With t being the max height time 500ms, u being 10m/s

For initial vertical velocity just use u sin theta.

The max horizontal height is "10 meters" and the initial vertical velocity is "4.9 m/s".

Given:

Horizontal velocity,

Time,

At max height,

(a)

→ Time to flight (T) will be:

= \(2t\)

= \(2\times 0.5\)

= \(1 \ second\)

→ Horizontal distance will be:

= \(V_x\times T\)

= \(10\times 1\)

= \(10 \ meters\)

(b)

→ The initial vertical velocity will be:

\(V_{yf} = V_y +gt\)

   \(0 = V_y - 9.8\times 0.5\)

  \(V_y = 4.9 \ m/s\)

Thus the above answers are correct.

Learn more:

https://brainly.com/question/3698280

Answer:

increase distance

Explanation:

Inclined planes make it easier to move objects to a higher elevation. The sloping surface of the inclined plane supports part of the weight of the object as it moves up the slope. As a result, it takes less force to move the object uphill.

Answer:

Hello your answer would be increase of distance

Explanation:

I know that because than you would have to go upward with the object.

mass = 2.76 g

volume = 25.5 mL

density of the fluid = 2.5 g/mL

R. D = Density of fluid

Density of water

Density of water = 1g/mL

R. D = 2.5/1

R. D = 2.5

a. The coefficient of static friction between the chair and the floor is 0.67.

b. The coefficient of kinetic friction between the chair and the floor is 0.52.

Given the following data:

Scientific data:

a. To find the coefficient of static friction between the chair and the floor:

Mathematically, the force of static friction is given by the formula;

\(F_s = uF_n = umg\)

Where;

Making μ the subject of formula, we have:

\(u=\frac{F_s}{mg}\)

Substituting the given parameters into the formula, we have;

\(u=\frac{165}{25 \times 9.8} \\\\u=\frac{165}{245}\)

μ = 0.67

b. To find the coefficient of kinetic friction between the chair and the floor:

Note: The normal force would be the same as above.

\(u_k = \frac{F_k}{F_n} \\\\u_k = \frac{127}{245}\\\\u_k =0.52\)

Read more on force of static friction here: https://brainly.com/question/25686958

The composition of the solution in terms of mole fraction will simply be equal to the mole fraction of the volatile liquid.

It is given that the liquid a is volatile and b is non-volatile. Since the solute a is not volatile, the mole fraction of the solute is not to be taken into account for. Being non-volatile, the liquid aa will not be contributing to the partial pressure. Hence, the partial pressure will only depend on the mole fraction of b which is given to be volatile.

Therefore, here we will only have to consider the mole fraction of the volatile liquid b and not the involatile liquid a.

Learn more about non-volatile here:

https://brainly.com/question/28206662

#SPJ4

The lightning strike is approximately 2 kilometers away if you hear the thunderclap 6.0 seconds after seeing the lightning bolt.

When lightning strikes, it produces both light and sound waves. Light waves travel at a much faster speed than sound waves, so we see the lightning before we hear the thunderclap. The speed of sound in air is approximately 340 m/s. To calculate the distance of the lightning strike, we can use the formula:
distance = speed x time
If we know that it took 6.0 seconds for the thunderclap to reach us, we can multiply this time by the speed of sound to find the distance.
distance = 340 m/s x 6.0 s = 2040 m
However, this distance only accounts for the time it took for the sound to reach us. The lightning bolt itself also has to travel from its location to our eyes, but we can assume that it travels at the speed of light, which is much faster than the speed of sound. Therefore, we can ignore the time it takes for the lightning to reach us and conclude that the lightning strike is approximately 2 kilometers away.

Learn more about sound here:

https://brainly.com/question/29707602

#SPJ11

Explanation:

The amount of CD is 35 g, and the amount of AC is 40 g.

Explanation:

AB + CD \rightarrow AC + BDAB+CD→AC+BD

The law of conservation of mass states that in any chemical reaction, the total mass of the reactants must be equal to the total mass of the products.

In this reaction, we know the mass of one reactant (AB, 15 g) and the mass of one product (BD, 10 g). In order to have the same total mass on the left side and on the right side of the equation, the mass of AC must be 5 g more than the mass of CD. We see that the only choice that satisfies this condition is:

The amount of CD is 35 g, and the amount of AC is 40 g.

In fact, if we assume these masses are correct, we have:

- on the reactant side: m(AB)+m(CD)= 15g + 35g = 50g

- on the product side: m(AC)+m(BD)= 40g + 10g = 50g

so, we have the same mass on both sides of the equation, and the law of conservation of mass is satisfied.

Answer:

B is  the answer on edge

Explanation:

B: The amount of CD is 35 g, and the amount of AC is 40 g.

Divergent boundaries are the result of the upward movement of material from the mantle. This leads to sea floor spreading and the creation of new lithosphere.

Explanation:

1A. The visible light portion of the electromagnetic spectrum shows the rainbow of colors, with violet and blue having shorter wavelengths, and therefore higher energy. At the other end of the spectrum toward red, the wavelengths are longer and have lower energy.

so its option 2

2A. Atom and molecules

PLEASE THANK, RATE AND FOLLOW ME,

AND PLEASE MARK ME AS "BRAINLIEST" ANSWER

HOPE IT HELPS YOU

Answer:

ok what is the question

Answer:

If the question is what is the magnitude of the final velocity of the combined cars ? Answer: 1.5 m/s

Explanation:

The potential difference across the ends of a wire is doubled in magnitude. If ohm’s law is obeyed, the resistance is not changed. Thus, option A is correct.

The current is the stream of charges which flow inside the conductors when connected across the end of voltage.

From Ohm's law, V =IR

Here, R is the proportionality constant called the resistance of the resistor.

The complete question is given in the image attached.

The potential difference across the ends of a wire is doubled in magnitude.2V = IRR =2 V/IAs, the resistance is a constant value, it does not change.

The following statements concerning the resistance of the wire true is :

The resistance is not changed

Thus, the correct option is A.

Learn more about current, here:

https://brainly.com/question/13076734

#SPJ1

A concave mirror is a type of optical surface that has a reflective surface that curves inward. This type of mirror is often used in optical devices, such as telescopes and magnifying glasses.

The design of these devices involves only one optical surface, the concave mirror, which is used to focus light onto a specific point or image. The curvature of the mirror determines how the light is reflected and focused, and the distance between the mirror and the object being viewed affects the magnification and clarity of the image. The simplicity of the design involving only one optical surface makes it easier to produce and maintain optical devices, and it also allows for greater precision and accuracy in the resulting images. Overall, the use of a concave mirror as the sole optical surface in a design offers a cost-effective and efficient solution for a variety of optical applications.

To know more about magnifying glasses visit :-

https://brainly.com/question/1932868

#SPJ11

the circumference of the CD is moving at a constant speed of 120 cm/s when the CD is rotating at a constant angular speed of 20 radians per second.

The circumference of the CD can be calculated using the formula C = πd, where d is the diameter. So, for a CD with a diameter of 12.0 cm, the circumference is C = π(12.0 cm) = 37.7 cm (rounded to one decimal place).
The linear speed of a point on the circumference can be found using the formula v = ωr, where ω is the angular speed and r is the radius of the circle. Since the radius of the CD is half the diameter, it is 6.0 cm.
So, the linear speed of a point on the circumference is v = (20 rad/s) x (6.0 cm) = 120 cm/s.

to know more about, circumference visit

https://brainly.com/question/28757341

#SPJ11

As the air cools, it becomes denser and sinks below warmer air (option b). Cooling causes a decrease in air molecules' kinetic energy, reducing their speed and increasing their proximity to each other.

This increased density leads to higher air pressure. According to the ideal gas law, decreasing temperature decreases the air pressure.

This denser, cooler air displaces the warmer, less dense air, causing it to rise. This process is known as convection.

It creates vertical air movements, with cooler air sinking and warmer air rising.

The resulting circulation patterns play a crucial role in weather and climate systems, influencing wind patterns, cloud formation, and precipitation. Thus, the correct option is b.

For more such questions on kinetic energy, click on:

https://brainly.com/question/8101588

#SPJ11

That identical spaceship takes around a year to get to mars.

The Earth's axial wobble is stabilized by the Moon, the biggest and brightest object in our night sky, leading to a typically stable climate. As a result, Earth is a more hospitable planet. Moreover, it produces tides, which result in a rhythm that has guided mankind for a very long time. The following calculation must be performed to determine how long it will take the same spacecraft to reach Mars given that Mars is 140 times further away from Earth than the Moon and that a spacecraft can traverse the 386,400 kilometers between the Earth and the Moon in 3 days:

140 x 3 = 420 days

This spaceship will travel from Earth to Mars in just about one year and two months, assuming a year has 365 days.

Learn more about Earth here-

https://brainly.com/question/14042561

#SPJ4

The phenomenon of sending vibrations to another body and resulting in the production of another sound wave is called resonance. Higher intensity resonance may cause damages to buildings.

Charged particles, mechanical systems, and objects frequently vibrate at a particular frequency. This frequency is also known as the natural frequency or the resonant frequency.

Resonance occurs when a light or sound wave meets an object that is already vibrating at a certain frequency, and if the frequency just so happens to match the resonant frequency of the thing being struck.

Resonance happens when an object's oscillations become more intense because they are matched by the vibrations of another object.When pushed, the swing goes both forward and backward. The motion of the swing can be developed by giving it a series of consistent pushes.

To find more on resonance, refer here:

https://brainly.com/question/25776637

#SPJ2

Answer:

experimental data obtained by using technology to get objective measuremennts

The light gathering power of a 4-meter telescope is 4 times larger than that of a 2-meter telescope. Therefore, the correct answer is (b) 4 times larger.

The light gathering power of a telescope is directly proportional to the square of the diameter of its aperture. To find the ratio of the light gathering power of the 4-meter telescope to the 2-meter telescope, we can follow these steps:

1. Calculate the square of the aperture diameter for both telescopes:
  For the 4-meter telescope: 4^2 = 16
  For the 2-meter telescope: 2^2 = 4

2. Divide the light gathering power of the 4-meter telescope by that of the 2-meter telescope:
  16 / 4 = 4

So, the light gathering power of a 4-meter telescope is 4 times larger than that of a 2-meter telescope. Therefore, the correct answer is (b) 4 times larger.

To know more about telescope refer here: https://brainly.com/question/31634676#

#SPJ11

Answer:

Festival dances should be introduced to the younger generations of today because they teach them about different cultures. Festival dances are also a way to be active and have a fun time.

Explanation:

1 watt = 1 joule/second

1 KW = 1,000 joule/second

Work = (power) x (time)

3.6 x 10⁴ J = (2,984 joules/second) x (time)

time = (3.6 x 10⁴J) / (2,984 J/s)

time = (36,000J) / (2,984 J/s)

time = 12.06 seconds

Answer:

Force = 304.5 Newton

Explanation:

Given the following data;

Initial velocity, u = 0m/s (since it started from rest).

Final velocity, v = 42m/s

Time, t = 0.02 secs

Mass = 0.145 kg

To find the force;

First of all, we would have to determine the acceleration of the ball;

Acceleration = (v - u)/t

Acceleration = (42 - 0)/0.02

Acceleration = 42/0.02

Acceleration = 2100 m/s²

Now, we solve for the force;

Force = mass * acceleration

Force = 0.145 * 2100

Force = 304.5 Newton

Answer: I think a

Explanation:

Answer:

he would have to run at a 7 and a half mile to get 8 miles in an hour

Explanation:

Answer:

7.5 minutes

Explanation:

We know that there are 60 minutes in an hour. So, we can say that Rogan can run 8 miles per 60 minutes. Now, we can create an equation to solve for how many minutes it would take per mile.

8/60 = 1/x

x = 7.5

So, it would take Rogan approximately 7.5 minutes to travel 1 mile.

Answer: b. 420 m/s

Explanation: ap3x

The frequency of the wave with the speed of 345 m/s and wavelength of 23 m is 15 Hz. With the same frequency the speed of wave t 28 m wavelength will be 420 m/s.

Frequency of a wave is the number of wave cycles per unit volume. It is the inverse of time period thus have the unit of s⁻¹ which is equivalent to one Hz. Frequency is inversely proportional to the wavelength.

The relation between frequency, wavelength and speed of a wave is written as follows:

c = νλ

Given that, speed of the wave = 345 m/s

wavelength =23 m

frequency = speed/wavelength

v = 345 m/s /23 m = 15 Hz.

New wavelength = 28 m

frequency = 15 Hz

then speed = 15 Hz × 28 m = 420 m/s.

Hence, the speed of the wave become 420 m/s. Option B is correct.

Find more on frequency:

https://brainly.com/question/14316711

#SPJ5

The procedure of the formal letter starts with your Name, Contact Information, and Date followed by the Recipient's Name and Contact Information. After this, the greeting and the body of the letter are prepared.

In literature, a letter may be characterized as a kind of non-fictional written, typed, or printed communication. These are usually written to facilitate communication between two individuals and are usually sent to the recipient via mail or post in an envelope.

From XYZ,

To Dr. Flores.

Subject: Discuss the principle of Kinetic energy "an energy of motion"

Respected sir,

The roles of kinetic energy and molecular attraction in phase change by completing a hands-on activity, and exploring the Simulation. After all the solid has melted, once again, the heat added goes to increasing the kinetic energy (and temperature) of the liquid molecules until they boil.

A phase change is a process of a substance gaining or losing energy so that molecules or atoms either come closer together or become farther. It also involves the freedom of movement of the gaseous particles when there is the process of phase change successfully accomplished.

Therefore,  a letter to Dr. Flores is well written in a proper format.

To learn more about Kinetic energy, refer to the link:

https://brainly.com/question/25959744

#SPJ1

Answer:

Sh = Vh t         horizontal distance traveled

Sh = 10.2 m/s * 3.7 s = 37.74 m