In recent years, astronomers have found planets orbiting nearby stars that are quite different from planets in our solar system. Kepler-12b, has a diameter that is 1.7 times that of Jupiter (RJupiter = 6.99 x 107 m), but a mass that is only 0.43 that of Jupiter (MJupiter = 1.90 x 1027 kg). Part A What is the value of g on this large, but low-density, world? Express your answer with the appropriate units. НА ? g= Value Units Submit Request Answer Provide Feedback

Answer:

the time will be 1.29 sec

The energy efficiency of the mixer is 70%.

The Sankey diagram shows the amount of energy absorbed, the amount of useful energy, and the amount of non-useful energy.

The efficiency of a device

η = (U/I) × 100%

I = U + W

100% = U + 30%

U = 100% - 30%

U = 70%

The efficiency of the mixer

η = (U/I) × 100%

η = (70%/100%) × 100%

η = (7/10) × 100%

η = 70%

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Answer:

right    

Explanation:

The up and down forces cancel

  then you are left with a    -200    and a  + 400

     resulting in a + 200   (to the right)

Velocity, acceleration, force, and displacement, have magnitude and direction (ie vector quantity) in common

This is a which have both magnitude and direction. Example include:

This is a quantity which has magnitude but no direction. Example include:

From the above, we can see that velocity, acceleration, force, and displacement, have magnitude and direction (ie vector quantity) in common

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Answer:

The crust in Item A is found partially below sea level as compared to the crust in Item B.

Explanation:

You're welcome!

Answer: c. The crust in Item A is found partially below sea level as compared to the crust in Item B.

Explanation:

Answer:

All objects on Earth, regardless of their mass, accelerate due to gravity at the same rate - that is, 9.8 m/sec2. The weight of an object can be calculated using the formula for force - F = m * a - where F equals the weight of the object and now the acceleration (a) is the acceleration of gravity (g).

Answer:

0.22 km/h

Explanation:

72 hours in 3 days

16/72 = 0.222222222

round to 0.22 km/h

For future reference, Distance/Time= Speed

Answer:

it is c

Explanation:

Answer:

just know that if the volume is reduced by 10 the the pressure is increased by 10

Answer:

C

Explanation:

Answer:

c

Explanation:

Pressing a lever in the box's corner is the sole method to get rid of the shocks. The rat picks up pressing the lever quite quickly. This is an illustration of negative reinforcement.

The technique of negative reinforcement can be applied to aid in teaching particular actions.

When something unpleasant or uncomfortable is taken away in response to a stimulus, this is known as negative reinforcement.

Target behavior should gradually grow better with the hope that the unpleasant item will go away.

A rat is placed in an environment where the floor gives the rat small electric shocks. The only way to get rid of the shocks is to press a lever in the corner of the box.

The rat quickly learns to press the lever. This is an example of  negative reinforcement

Hence the given condition is an example of negative reinforcement.

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The given statement "scientists are concerned about the decrease in ozone is allowing more ultraviolet" is true because ozone is a molecule made up of three oxygen atoms that exist in the Earth's atmosphere. It's a form of oxygen that absorbs almost all of the Sun's harmful ultraviolet light.

Ultraviolet rays are very harmful to humans, causing skin cancer, immune system breakdowns, and cataracts in the eyes. When the ozone layer is damaged or thinned, it can allow more ultraviolet rays to penetrate the atmosphere, which is why scientists are so concerned about ozone depletion.What are the impacts of ozone depletion?It is estimated that a 1% reduction in the ozone layer increases the incidence of non-melanoma skin cancer by 2%.A decrease of 10% in the ozone layer may result in a 20% increase in the incidence of skin cancer.The thinning of the ozone layer may result in a decrease in plant production, which may result in food supply shortages.A decrease in ozone may have an impact on phytoplankton, which play a crucial role in ocean food webs. These tiny creatures consume carbon dioxide and produce half of the world's oxygen. As phytoplankton numbers decline, ocean ecosystems may change, affecting everything from fish populations to weather patterns.

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Answer: Lisa Leslie

Explanation: On July 30, 2002, Leslie became the first woman to dunk the ball in a WNBA game.

Answer:

Lisa Leslie

Explanation:

On July 30, 2002, Leslie became the first woman to dunk the ball in a WNBA game

Approximately 7 grams of water were converted to steam when 3,611 calories of heat were added to water at 100 degrees Celsius.

To find out how much water was converted to steam when 3,611 calories of heat were added to water at 100 degrees Celsius, we can use the formula:

Amount of water converted (in grams) = Heat added (in calories) / Heat of vaporization of water (in calories per gram)

The heat of the vaporization of water is approximately 540 calories per gram.

Step 1: Divide the heat added by the heat of the vaporization of water.
Amount of water converted (in grams) = 3,611 calories / 540 calories per gram

Step 2: Calculate the amount of water converted.
Amount of water converted (in grams) = 6.69 grams

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Answer:

All the sides and inner angles of a regular form must be equal. The sides and angles of an irregular form aren't the same. An equilateral triangle, for example, is a regular form because all of its sides and angles are the same length.

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The voltage provided by the power supply = 20 V

The Voltage across resistors in series in a circuit is equal to the sum of the voltage drops across each resistor.

Therefore for two resistors in series the total voltage provided by the power supply is equivalent to the summation of the voltage drops acroos each resistor ( i.e 10 V + 10 V = 20 V )

Hence we can conclude that the voltage provided by the power supply is 20 V

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The acceleration of the edge of rotor will be 5707 rad/s^2

It is given that

r = 7.165 cm = 0.07165 m

Angular speed, w = 2695.0 rpm

2695 X 2π/60

282.2197 rad/sec

Acceleration is the rate at which the speed and direction of a moving object vary over time. A point or object going straight ahead is accelerated when it accelerates or decelerates. Even if the speed is constant, motion on a circle accelerates because the direction is always shifting.

The acceleration will be

a = w²r

a = 282.2197^2 x 0.07165

a = 5706.77 rad/sec²

Hence, acceleration of the edge of rotor will be 5707 rad/s^2

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The number of interference peaks in the central diffraction peak is 0, which means there are no secondary maxima or minima in the central peak.

The number of interference peaks in the central diffraction peak can be determined using the formula:

N = (2d sinθ) / λ

where N is the number of interference peaks, d is the distance between the slits (1200 nm in this case), θ is the angle of diffraction, and λ is the wavelength of the light (461.9 nm in this case).

To find θ, we can use the formula:

sinθ = mλ / d

where m is the order of the interference peak (m = 0 for the central peak).

Plugging in the values, we get:

sinθ = (0 x 461.9 nm) / 1200 nm = 0

Since sinθ is zero, θ is also zero, which means the central peak is straight ahead.

Now, we can plug in the values into the first formula:

N = (2 x 1200 nm x sin(0)) / 461.9 nm = 0

Therefore, the number of interference peaks in the central diffraction peak is 0, which means there are no secondary maxima or minima in the central peak.

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A ship travels across the water at a speed of 30 mph while angled 30 degrees south of east. The water is travelling 20 degrees east of north at a speed of 5 miles per hour. Vector for the ship is 25.98i - 15j mi/h.

The water is also travelling at a speed of 5 miles per hour at an angle of 20° south of east, which suggests that it is moving in the first quadrant at an angle of 90° - 20° = 70° east of north. So, the water's velocity has an x-component of v3 = 5cos70° = 1.71 mi/h and a y-component of v4 = 5sin70° = 4.7 mi/h.

V = velocity vector of ship as it goes through water + velocity vector of water current is the velocity vector that accurately depicts the ship's real motion.

V = v + v'

= 25.98i - 15j mi/h + 1.71i + 4.7j mi/h

= (25.98i + 1.71i + 4.7j - 15j )mi/h

= 27.68i -10.3j mi/h

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Answer:

5 cm.

Explanation:

If the glass is located upright, the height of water is about 5 cm because the height of glass is 10 cm and it is partially filled with water and we know that partial means 50 percent of something and here 50 percent of glass is 5 cm. If the glass is slightly bend, so we can't find its right height so the proper height of water is attain if it is placed on flat table and present upright.

As a roller coaster car crosses the top of a 60-m-diameter loop-the-loop, its apparent weight is the same as its true weight. The car's speed at the top will be 24.25 m/s

Any object moving in a circle (or along a circular path) experiences a centripetal force. That is, there is some physical force pushing or pulling the object towards the center of the circle. This is the centripetal force requirement.

diameter = 60 m

weight + normal = m\(v^{2}\)/r

m = mass

v = velocity

r= radius

since , apparent weight is the same as its true weight

2W = m\(v^{2}\)/r

2 * m * g = m\(v^{2}\)/r

v = \(\sqrt{2gr}\)

v = \(\sqrt{2 * 9.8 * 30}\) = 24.25 m/s

The car's speed at the top will be 24.25 m/s

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Answer:

Explanation:

\(V^2=V^2_i+2a(x_f-x_i)\)

\(0.76^2=0^2+2a(15.2)\)

\(0.5776=30.4a\)

\(a=0.019m/s^2\)

Answer:

They will repel each other since they have the same charge specifically negative

Explanation:

Answer:

The magnets will repel in other words they will pull away

Explanation:

In magnets like poles repel each other and unlike poles attract each other. So when placing the north pole of two magnets close together they will repel.

When two like-poles point together, the arrows from the two magnets point in OPPOSITE directions and the field lines cannot join up

Unlike-poles attract: When a north pole and south pole point together, the arrows point in the SAME direction so the field lines can join up and the magnets pull together

The mass of the honey collected is 1.30 kg.

mass can be defined as the quantity of matter a body contains.

The S.I unit of mass is kilogram (kg).

From the question, the mass of the honey can be calculated using the formula below.

Where:

From the question,

Given:

Substitute these values into equation 1

Hence, the mass of the honey collected is 1.30 kg.

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Answer:

12 pounds mine does

Explanation:

Answer: 10 pnds

Explanation:

The equivalent resistance between points A and B in the diagram is 22 Ω

We shall begin by obtaining the equivalent resistance in parallel (i,e the three 6 Ω resistor). Details below:

1/Rₜ = 1/R₁ + 1/R₂ + 1/R₃

1/Rₜ = 1/6 + 1/6 + 1/6

1/Rₜ = 3/6

1/Rₜ = 1/2

Rₜ = 2 Ω

Finally, we shall determine the equivalent resistance between A and B (i.e series arrangement). Details below:

R = R₁ + R₂ + R₃ + R₄ + R₅ + R₆ + R₇ + R₈ + R₉ + R₁₀ + R₁₁

R = 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2

R = 22Ω

Thus, we can conclude that the equivalent resistance is 22 Ω

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Yes, the velocity of the ball has changed as it changed its direction from hitting the wall and after it struck the wall.

Speed is a scalar which means it has magnitude but not the direction. Velocity, on the other hand, is a vector with both magnitude and a direction. As the speed of two cars may be the same, if they are heading to different directions, then their velocity are not identical.

The velocity of he ball has changed. Let's call that the initial direction positive, when the ball was going towards the wall, its velocity is positive +V. But when it bounces directly back, the direction is now is negative -V. The direction of the velocity has changed, even though the magnitude has not.

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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:

The distance from sphere A to sphere C on the right such that the original small sphere remains at rest is a/2

Explanation:

The force of a charge at a point is given as follows;

From an online source, we have;

E₁ + E₂ = 0

The electric field due to the sphere B of charge +8q = E₁

\(E_1 = \dfrac{k \cdot (8 \cdot Q)}{a^2}\)

The position of the sphere B = A distance 'a' to the left of 'A'

The electric field due to the sphere C of charge +2q = E₂

The position of the sphere C = A distance to the right of 'A'

Therefore, for the electric field strength of sphere 'B' at 'A', we have;

\(E_1 = \dfrac{k \cdot (8 \cdot Q)}{a^2} = 4 \times \dfrac{k \cdot (2 \cdot Q)}{a^2}\)

Let 'x' be the distance of the +2q charge to the right of 'A', we have;

\(E_2 = \dfrac{k \cdot (2 \cdot Q)}{x^2}\)

Therefore, for the force of the +2q charge to balance the +8q charge at C, we have;

\(\dfrac{k \cdot (2 \cdot Q)}{x^2} = \dfrac{k \cdot (8 \cdot Q)}{a^2} = 4 \times \dfrac{k \cdot (2 \cdot Q)}{a^2}\)

\(\therefore \ \dfrac{1}{x^2} = \dfrac{4}{a^2}\)

\(\therefore \ \sqrt{ \dfrac{1}{x^2} }= \sqrt{\dfrac{4}{a^2}}\)

\(\dfrac{1}{x} = \dfrac{2}{a}\)

\(x= \dfrac{a}{2}\)

Therefore, the distance, 'x', from sphere A to sphere C on the right such that the original small sphere remains at rest is x = a/2.

AP Physics 1 is a college-level introductory physics course designed to give high school students an understanding of the fundamental principles of physics.

The course covers topics such as mechanics, waves, thermodynamics, electricity, and magnetism. Students in AP Physics 1 learn to think critically and solve problems using scientific inquiry, experimentation, and analysis. The course is structured to provide students with hands-on laboratory experience and to develop their skills in using math and quantitative analysis to explain physical phenomena. At the end of the course, students take an exam that can qualify them for college credit and demonstrate their mastery of the concepts and skills covered in the course.

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