Question 13 of 32
1 Point
For a satellite to orbit Earth at a constant distance, its centrifugal acceleration
must be equal and opposite Earth's gravitational acceleration. If a satellite is
to orbit at a constant distance from Earth at a circular radius of 7,000,000 m,
what is the required velocity of the satellite? (Assume the acceleration due to
Earth's gravity is 8.2 m/s2 at this altitude.)
O A. 8239 m/s
O B. 7576 m/s
C. 6818 m/s
D. 7043 m/s

Answer:

4km/m

Explanation:

She was going at 2km/m, so 2 kilometers per minute. She has 2 minutes therefore she needs to double her rate to 4 kilometers per minute.

Answer:

Is this multiple choice answers?? Or fill in the blank??

Explanation:

Answer:

B

Explanation:

i worked it out on a diffrent sheet so its hard to explain

The current, according to Ohm's law if, if The voltage between two points in a circuit is 5 V and the resistance between the points is 80 ohms, is 0.063 A so, option B is correct.

Electric currents can be created by the movement of any electric charge carriers, including ions (atoms that have gained or lost one or more electrons), holes, or subatomic charged particles (such electrons with a negative charge or protons with a positive charge) (electron deficiencies that may be thought of as positive particles).

Given:

The voltage between two points in a circuit is 5 V,

If the resistance between the points is 80 ohms,

Calculate the current using Ohm's law as shown below,

Current = The voltage between two points / the resistance between the points

Current = 5 / 80

Current = 0.0625

Current = 0.063 A,

Thus, the current according to Ohm's law is 0.063 A.

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Answer:

Decaying

Explanation:

Dead plants and animals go through decaying process as their body is broken down into many pieces which later becomes the part of soil. Decaying process is done by decomposers like bacteria, fungi, etc.

Answer:

Yes

Explanation:

When the planet moves farther away, the speed and kinetic energy decrease, and the gravitational potential energy increases.

Answer:

inverse

Criminology

Explanation:

Answer:

positive

Explanation:

Answer:

Explanation:

Work = Force times displacement. Therefore,

W = 3150(75.5) so

W = 238000 N*m

An oscillating LC circuit consisting of a 2.4 nF capacitor and a 2.0 mH coil has a maximum voltage of 5.0 V. The maximum energy stored in the magnetic field of the coil is approximately 10.78 millijoules (mJ).

To solve the given questions, we can use the formulas related to the LC circuit: (a) The maximum charge (Q) on the capacitor can be calculated using the formula: Q = C * V where C is the capacitance and V is the maximum voltage. Given:

C = 2.4 nF = 2.4 × 10^(-9) F

V = 5.0 V

Substituting the values into the formula:

Q = (2.4 × 10^(-9)) * 5.0

≈ 1.2 × 10^(-8) C

Therefore, the maximum charge on the capacitor is approximately 1.2 × 10^(-8) C.

(b) The maximum current (I) through the circuit can be calculated using the formula:

I = (1 / √(LC)) * V

Given:

C = 2.4 nF = 2.4 × 10^(-9) F

L = 2.0 mH = 2.0 × 10^(-3) H

V = 5.0 V

Substituting the values into the formula:

I = (1 / √((2.4 × 10^(-9)) * (2.0 × 10^(-3)))) * 5.0

≈ 3.28 A

Therefore, the maximum current through the circuit is approximately 3.28 A.

(c) The maximum energy stored in the magnetic field of the coil can be calculated using the formula:

E = (1/2) * L * I^2

Given:

L = 2.0 mH = 2.0 × 10^(-3) H

I = 3.28 A

Substituting the values into the formula:

E = (1/2) * (2.0 × 10^(-3)) * (3.28^2)

≈ 10.78 mJ

Therefore, the maximum energy stored in the magnetic field of the coil is approximately 10.78 millijoules (mJ).

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Answer:

It is an essential concept of physics. In sports momentum term is commonly used. Like, if a team has the momentum then it is on the move and is going to take some effort to stop. But if a team has lot of momentum then it is really on the move and is going to be hard to stop

Explanation:

Answer:

Wtens = (20 N) * (5 m) * cos (0 deg) = +100 Joules

Wgrav = (20 N) * (5 m) * cos (180 deg) = -100 Joules

Wapp= (10 N) * (5 m) *cos (0 degrees) = +50 Joules

Wfrict =(10 N) * (5 m) * cos (180 degrees) = -50 Joules

Wapp = (10 N) * (5 m) * cos (0 deg) = +50 Joules

Wfrict = (10 N) * (5 m) * cos (180 deg) = -50 Joules

Explanation:

Apply the work equation to determine the amount of work done by the applied force in each of the three situations described below.

44.97 g of excess F2 will be left after the reaction is complete.

To determine the mass of the excess reactant left, we first need to determine the limiting reactant. This can be done by comparing the amount of each reactant with the stoichiometric coefficients in the balanced chemical equation.

The balanced chemical equation for the reaction between sulfur (S) and fluorine (F2) is:

S (s) + F2 (g) → SF2 (g)

From the equation, we can see that 1 mole of S reacts with 1 mole of F2 to produce 1 mole of SF2.

To calculate the moles of each reactant:

moles of S = 49.8 g / 32.06 g/mol = 1.552 mol

moles of F2 = 103.9 g / 38.00 g/mol = 2.734 mol

According to the stoichiometry of the balanced equation, S is the limiting reactant, since it produces less product (SF2) than the amount produced by F2. For every 1 mole of S, only 1 mole of SF2 is produced, while for 1 mole of F2, 1 mole of SF2 is produced.

Therefore, all the S will react with 1.552 mol of F2 to produce 1.552 mol of SF2, and there will be an excess of 2.734 - 1.552 = 1.182 mol of F2 left.

To calculate the mass of the excess F2:

mass of F2 = moles of F2 x molar mass of F2

mass of F2 = 1.182 mol x 38.00 g/mol

mass of F2 = 44.97 g

Therefore, 44.97 g of excess F2 will be left after the reaction is complete.

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The distance from the Sun where ice and gases become prevalent on a planet's surface relative to liquid water is defined as the frost line.

A frost line also known as frost depth or freezing depth, is the depth to which the groundwater in soil is expected to freeze.

It is the distance from the Sun where ice and gases become prevalent on a planet's surface relative to liquid water.

Thus, the distance from the Sun where ice and gases become prevalent on a planet's surface relative to liquid water is defined as the frost line.

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The mass of the wheel is approximately 8.48 kilograms.

The distance moved by the object hanging from the wheel in a time of 2.01 seconds is equal to the distance traveled by a point on the wheel's circumference in the same time period. Let's call the radius of the wheel "r". The distance traveled by a point on the wheel's circumference is equal to the circumference of the wheel, which is 2πr.

So, we can write:

distance = 2πr

We know the distance traveled by the hanging object is 3.40 m, so we can write:

3.40 m = 2πr

Solving for r, we get:

r = 3.40 m / (2π) ≈ 0.541 m

Now we can use the formula for centripetal force, which relates the force required to keep an object moving in a circle to the object's mass, the radius of the circle, and the speed of the object:

force = (mass x speed²) / radius

We don't know the speed of the object, but we do know that it moved 3.40 m in 2.01 s, so we can find the speed using the formula for average speed:

speed = distance / time = 3.40 m / 2.01 s ≈ 1.69 m/s

Now we can plug in the known values and solve for the mass:

force = (mass x speed²) / radius

The force is the weight of the hanging object, which is given as 53.0 N. The radius is 0.541 m, and the speed is 1.69 m/s. Plugging these values in,

53.0 N = (mass x 1.69²) / 0.541 m

Solving for mass, we get:

mass = (53.0 N x 0.541 m) / 1.69² ≈ 8.48 kg

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Answer:

21.18 L

Explanation:

From the question given above, the following data were obtained:

Initial pressure (P₁) = 1 atm

Initial volume (V₁) = 18 L

Final pressure (P₂) = 0.85 atm

Final Volume (V₂) =?

With the application of the Boyle's law equation, we can obtain the final volume (i.e the new volume) of the gas as follow:

P₁V₁ = P₂V₂

1 × 18 = 0.85 × V₂

18 = 0.85 × V₂

Divide both side by 0.85

V₂ = 18 / 0.85

V₂ = 21.18 L

Therefore, the new volume of the gas will be 21.18 L

A 20m long metal rod has a radius of 1.0 cm and a resistance of 3.2 x 10-5 ohms. The resistivity of the metal is 5.0 * 10 -8 ohm - m.

The value of the metal's resistivity must be determined in accordance with the question.

resistivity = π* r * R / L

= 3.14 * 0.01 * 0.01 * 3.2*10^-5 / 0.20 m

= 5.0 * 10 ^ -8 ohm - m

The Greek letter omega () represents resistance, which is measured in ohms. Ohms are named after the German physicist Georg Simon Ohm (1784-1854), who studied the relationship between voltage, current, and resistance. Ohm's Law is credited to him.

All materials, to some extent, resist current flow. They are divided into two categories:

Conductors are materials with very little resistance that allow electrons to move freely. Silver, copper, gold, and aluminum are just a few examples.

Insulators: Materials with high resistance to electron flow. Rubber, paper, glass, wood, and plastic are just a few examples.

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Answer:  21 kgm/s

Explanation:

momentum

p=mv  (mass*velocity )

m= 6kg

v=3.5 m/s

6*3.5= 21 kgm/s

Answer:

The acceleration of the object is \(17\ m/s^2\)

Explanation:

Force

Newton's second law states the net force exerted by an external agent on an object of mass m is:

F=m.a

Where a is the acceleration produced on the object.  The acceleration can be calculated by solving for a:

\(\displaystyle a=\frac{F}{m}\)

We have an object with a mass of m=40 kg that is acted on by a net force of F=680 N.

Calculate the acceleration:

\(\displaystyle a=\frac{680\ N}{40\ kg}\)

Calculating:

\(a = 17\ m/s^2\)

The acceleration of the object is \(17\ m/s^2\)

In order to find how many centimeters are in 15 kilometers, we can use the following conversion rate:

1 km = 100,000 cm.

So, for 15 kilometers, we have:

Therefore the correct option is C.

Answer:

what does it mean for a plate to subduct?

Explanation:

Subduction is a geological process in which the oceanic lithosphere is recycled into the Earth's mantle at convergent boundaries. Where the oceanic lithosphere of a tectonic plate converges with the less dense lithosphere of a second plate, the heavier plate dives beneath the second plate and sinks into the mantle.

Answer:

1. Following the recoil principle, rockets use combustion (a controlled explosion) to work against earth's gravitational attraction.

2. A force is a push or a pull that acts upon an object as a results of its interaction with another object. ... These two forces are called action and reaction forces and are the subject of Newton's third law of motion. Formally stated, Newton's third law is: For every action, there is an equal and opposite reaction.

(via physicsclassroom.com)

3. The combustion throws out material with very high momentum and is, physically speaking, the action. In reaction to that that, the rocket moves away from it (upward when in starts and has the action underneath it)

4. To show the world that commercial manned space missions are safely possible. Some may also like the fact that the US can now do, or rather order, manned flights into space without the help of the russian space agency (Roskosmos).

5. Robert Behnken and Douglas Hurley

6. The international space station (ISS)

7. Yes, Stage 1 of the rocket landed on the drone ship. The crew opened the hatch to enter the space station after 21 hours and 39 minutes after the launch from Cape Canaveral.

8. To have private contractors such as SpaceX actively in the field, there are now more interest groups that participate in space travel. And they can interact with other companies as well.

Also, due to Musks dream and efforts of SpaceX, space travel seems to get a lot cheaper.

That might indeed open the way back to the moon and further to the Mars for human space flight.

Governments such as the US planned on such things for decades, but changed plans ever since, and routinely changed leadership and the opinion on what's important.

Now Spaceflights can become less politically motivated and more commercially. That seems to be a more stable way over long periods of time.

(wrote most of it for you myself, even tough I'm not a native English speaker. would really appreciate the brainliest if you appreciate the work)

Answer:

yhgfty

Explanation:

cdfgv

Answer:

2nd law of motion

Explanation:

Answer:

Newton's 2nd Law of Motion

Explanation:

The amount of force needed to make an object change its acceleration depends on the mass of the object. In other words, the amount of force thrown by a professional quarter-back has more acceleration from his mass.

Answer: A.

current (thumb) to magnetic field (fingers)

Answer:

A. current (thumb) to magnetic field (fingers)

Explanation:

According to the Right-Hand Thumb rule, if we are holding a current- carrying straight conductor in our right hand such that the thumb points toward the direction of current, then the fingers will wrap around the conductor in the direction of the field lines of the magnetic field.

Hope it helps.

If you have any query, feel free to ask.

The amount of substance affects the total energy through the concept of molar heat capacity. Molar heat capacity is defined as the amount of heat required to raise the temperature of one mole of a substance by one degree Celsius. Therefore, the more substance there is, the more heat energy is required to raise its temperature.

For example, if we have one mole of a substance, it will require a certain amount of energy to raise its temperature by one degree Celsius. However, if we have two moles of the same substance, it will require twice as much energy to raise the temperature of the larger amount by the same one degree Celsius.

Additionally, the amount of substance can affect the total energy through the concept of specific heat capacity. Specific heat capacity is defined as the amount of heat required to raise the temperature of one unit of mass (usually one gram) of a substance by one degree Celsius. Therefore, if we have more mass of a substance, it will require more energy to raise the temperature of the larger amount by the same one degree Celsius.

In summary, the amount of substance affects the total energy through the concepts of molar heat capacity and specific heat capacity, which determine how much energy is required to raise the temperature of a given amount of substance.

Answer: the answer Is A. Maria checked her ice cube every half hour and forgot to reseal the container she put the ice cube in

Explanation: I just took the test

Answer:

A

Explanation:

APEX:)

Responder:  

18.75 atmósferas  

Explicación:  

Paso uno:  

datos dados

volumen inicial V1 = 25L

Presión inicial P1 = 7.5 atm

volumen final V2 = 10L

presión final P2 = ??

Segundo paso:

Aplicando la expresión de gas que relaciona el volumen y la presión, es decir

P1V1 = P2V2

sustituyendo nuestros datos tenemos

7.5 * 25 = P2 * 10

187.5 = P2 * 10

divide ambos lados por 10

P2 = 187.5 / 10

P2 = 18.75 atmósferas

La presión final es de 18.75 atm.

Answer:

Atoms are composed of protons,

and electrons.

Explanation:

To maintain steerage on a personal watercraft, you must apply the throttle, apply the brakes and turn hard, and drag a foot in the water,as you move forward, the watercraft will start moving in the direction you want it to go

Steering a personal watercraft is not as simple as it looks. It can be dangerous and can lead to accidents if the rider does not know how to handle the watercraft. To maintain steerage on a personal watercraft, you must first apply the throttle. As you move forward, the watercraft will start moving in the direction you want it to go. Applying the brakes and turning hard will help you steer the watercraft in the desired direction.

This is achieved by slowing down the watercraft and allowing it to turn naturally in the water. The final step is to drag a foot in the water. This is important when you want to make a sharp turn. Dragging a foot in the water helps to create a pivot point that helps you turn the watercraft in the desired direction, this technique is also used to help you maintain balance on the watercraft. So therefore to maintain steerage on a personal watercraft, you must apply the throttle, apply the brakes and turn hard, and drag a foot in the water,as you move forward, the watercraft will start moving in the direction you want it to go.

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Answer:

An electrically polarized object can have zero net charge, while a charged object cannot have zero net charge.

I hope this helps :D

Answer:

understand Newton's second law of motion,F is equal to ma where F is the force ,m is the mass of the object,a is acceleration