In terms of diameter, the planet Saturn is larger than _______ , but smaller than _______.

A.
Venus; Jupiter
B.
Uranus; Mars
C.
Mercury; Venus
D.
Jupiter; Earth

Planets A, B and F are the outer planets.

Planets C, D and E are the inner planets .

What are outer and inner planets ?

Outer planets: These are four in number which are Jupiter, Saturn, Uranus and Neptune. The atmosphere of these planets are mainly made up from hydrogen and helium. These planets have many number of moons around them and they all have ring systems.

Inner planets: These are four in number which are Mercury, Venus, Earth and Mars. The atmosphere of these planets are made up from mixture of gases. Main gases are nitrogen and carbon dioxide. These planets have maximum moons of 2 around them and they does not have ring systems.

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The acceleration of an object depends directly upon the net force acting upon the object, and inversely upon the mass of the object. As the force acting upon an object is increased, the acceleration of the object is increased. As the mass of an object is increased, the acceleration of the object is decreased.

Before opening her chute, Suzie Skydiver would experience a force of air pressure of approximately 450 N at terminal velocity.

Terminal velocity is the point where the force of air resistance, or drag, acting on the skydiver becomes equal in magnitude to the force of gravity pulling the skydiver down. At this point, the net force acting on the skydiver is zero, and they fall at a constant velocity. At terminal velocity, Suzie Skydiver is falling at a constant rate, meaning that the force of gravity pulling her down is balanced by the force of air resistance pushing her up.

This force of air resistance, also known as drag, can be calculated using the formula:

F = 1/2 * rho * v^2 * Cd * A,

where F is the force of drag, rho is the density of the air,

v is the velocity of the object,

Cd is the drag coefficient

A is the cross-sectional area of the object.

Assuming that Suzie Skydiver falls in a typical skydiving posture with a drag coefficient of around 1.0 and a cross-sectional area of 1.0 square meter,

Using the standard atmospheric density of 1.2 kg/m³,

We can calculate that her terminal velocity is approximately 54 m/s.

At this velocity, the force of air resistance, or drag, acting on Suzie Skydiver is equal in magnitude to the force of gravity, which is approximately 450 N.

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To find the induced emf in the coil, we can use Faraday's law of electromagnetic induction, which states that the emf induced in a coil is equal to the rate of change of magnetic flux through the coil.

The magnetic flux through the coil can be calculated using the formula:

Φ = B * A * cosθ,

where B is the magnetic field, A is the area of the coil, and θ is the angle between the magnetic field and the normal to the coil.

Given:

B_initial = 0.50 T (initial magnetic field)

B_final = 2.5 T (final magnetic field)

θ = 60° (angle between the magnetic field and vertical)

r = 2.0 cm = 0.02 m (radius of the coil)

N = 100 (number of turns)

Δt = 0.40 s (change in time)

First, let's calculate the change in magnetic flux (ΔΦ):

ΔΦ = B_final * A * cosθ - B_initial * A * cosθ,

The area of the coil (A) can be calculated as the area of a circle:

A = π * r^2,

Now, substitute the values and calculate ΔΦ:

ΔΦ = (2.5 T) * (π * (0.02 m)^2) * cos(60°) - (0.50 T) * (π * (0.02 m)^2) * cos(60°).

Next, we can calculate the average rate of change of magnetic flux (ΔΦ/Δt):

average rate = ΔΦ / Δt.

Finally, we can find the induced emf (ε) by multiplying the average rate of change of magnetic flux by the number of turns in the coil:

ε = N * (ΔΦ/Δt).

Now, substitute the values and calculate the induced emf:

ε = 100 * ((2.5 T) * (π * (0.02 m)^2) * cos(60°) - (0.50 T) * (π * (0.02 m)^2) * cos(60°)) / (0.40 s).

Simplifying the expression will give us the final numerical value of the induced emf in the coil.

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Answer:

6.9 m/s

Explanation:

Answer:

C

Explanation:

Mass remains constant whilst weight varies based on the gravitational field strength. Weight is actually a measure of how much gravity affects the mass of an object.

Answer:

C

Explanation:

The mass of the object is the same wherever it is. Weight is measured by the force exerted on the mass by the amount of gravity.

Answer:

Explanation:

We can use the following equation to calculate the normal force at the top and bottom of the ride:

N = mg ± mv^2/r

where N is the normal force, m is the mass of the child (30 kg), g is the acceleration due to gravity (9.81 m/s^2), v is the velocity of the child, r is the radius of the Ferris wheel (15.0 m), and the ± sign indicates that we need to use the plus sign for the bottom of the ride and the minus sign for the top of the ride.

At the bottom of the ride, the child is moving in the same direction as the force of gravity, so we use the plus sign:

Nbottom = mg + mv^2/r

The velocity of the child can be calculated using the formula for centripetal acceleration:

a = v^2/r

We can rearrange this formula to solve for v:

v = sqrt(ar)

where a is the centripetal acceleration (which is equal to g at the bottom of the ride), so:

v = sqrt(gr) = sqrt(9.81 m/s^2 × 15.0 m) = 11.2 m/s

Now we can substitute the values into the equation for Nbottom:

Nbottom = mg + mv^2/r = (30 kg)(9.81 m/s^2) + (30 kg)(11.2 m/s)^2/15.0 m = 536 N

Therefore, the normal force at the bottom of the ride is 536 N.

At the top of the ride, the child is moving in the opposite direction as the force of gravity, so we use the minus sign:

Ntop = mg - mv^2/r

The velocity of the child at the top of the ride is the same as at the bottom, so we can use the same value of v:

Ntop = mg - mv^2/r = (30 kg)(9.81 m/s^2) - (30 kg)(11.2 m/s)^2/15.0 m = 344 N

Therefore, the normal force at the top of the ride is 344 N.

Answer:

225

Explanation:

Answer:

I am doing the test now let me make sure then I tell you ok, just a second..

225 is correct

Explanation:

A automobile will have trouble while going through a curve when there is little friction between the car's tyres and the road during an ice storm and the banking of the road allow vehicles to move at 15 m/s.

The lack of friction will still cause the car to tend to slide towards the outside of the curve even though it is going more slowly. If the car slides off the road or into oncoming traffic, it might be very dangerous.

When the surface of a curving road is inclined towards the horizontal to generate the required centripetal force for a safe turn, the phenomenon known as "banking of roads" takes place.

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Answer:

1 hour

Explanation:

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Answer:

1 hour

Explanation:

MPH stands for miles per hour. So on a highway, if you were going 80MPH, you would go 80 miles, every hour. In this scenario we are going 50 MPH, it would take an hour to go 50 miles.  If, however, the car was going slower, like 25mph, it would take 2 hours because 25+25 is 50.

In contrast to steam-powered trains, maglev trains move forward using a different method. Maglev trains use magnets to lift the train above the tracks rather of burning coal to produce steam.

The Maglev is based on magnetic levitation, as opposed to regular trains, which have wheels. The train is raised briefly above the tracks by electromagnets. The thrust that propels the train is also produced by these magnets.

The primary draw of maglev trains is their speed, which is far greater than that of conventional rail trains. The Shanghai Maglev, the only commercial high-speed maglev, is currently the fastest train in use. Almost 50 mph (80 kph) quicker than the quickest high-speed vehicle

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Using a cable with a tension of 1350 N , a tow truck pulls a car 5.00 km alone a horizontal roadway. Therefore,

(a) Cable work: 6,750,000 J horizontally.

(b) Cable work: 6,308,250 J at 35.0° above horizontal.

(c) No work by gravity.

To calculate the work done by the cable in each scenario, we need to consider the angle between the direction of the force applied and the displacement.

(a) If the cable pulls horizontally (0° above the horizontal):

In this case, the angle between the force and the displacement is 0 degrees, so the work done can be calculated as:

Work = Force * Displacement * cos(Ф)

Work = 1350 N * 5000 m * cos(0°)

Work = 1350 N * 5000 m * 1

Work = 6,750,000 J

The cable does 6,750,000 Joules of work on the car when it pulls horizontally.

(b) If the cable pulls at 35.0 degrees above the horizontal:

In this case, the angle between the force and the displacement is 35.0 degrees, so the work done can be calculated as:

Work = Force * Displacement * cos(Ф)

Work = 1350 N * 5000 m * cos(35.0°)

Work = 1350 N * 5000 m * 0.819

Work = 6,308,250 J

The cable does approximately 6,308,250 Joules of work on the car when it pulls at 35.0 degrees above the horizontal.

(c) The work done by gravity on the car is zero because gravity acts vertically downward, perpendicular to the displacement along the horizontal roadway. Therefore, the gravitational force does not contribute to the work done on the car in this scenario.

In both cases (a) and (b), the cable does the same amount of work on the tow truck as on the car since they are connected by the cable. So the work done by the cable on the tow truck would be equal to the values calculated above: 6,750,000 J in case (a) and 6,308,250 J in case (b).

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Answer:

net force= -50N +70N

=20N

Explanation:

The balls are moving in opposite directions as indicated and to the right is (-) while to left is (+). Therefore net force is equal to sum of the force

The cue ball travels to the left with a force of +70 N and collides with the four-ball moving towards the right with a force of -50 N.

A push or a pull that alters or tends to alter an object's uniform motion or state of rest, as well as altering an object's direction or shape, is referred to as force. It either accelerates items or increases the pressure they are under. The interaction between two items is, to put it simply, a push or a pull on the object. It is the fundamental driver of motion starting from stillness.

Given information according to the question,

The cue ball travels to the left with a force of +70 N and,

The force by four balls moving to the right is -50 N.

Net force, N = 70 N - 50 N

N = 20 N towards the left direction.

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Answer:

search easy colleges to get into ig

Explanation:

Answer:

Chemical property

Explanation:

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The speed of light Slows because the lens has a greater refractive index.

In a vacuum, which has a refractive index of 1, light moves at a speed of about 300,000 km/s, but in water and glass, its speed drops to 225,000 km/s and 200,000 km/s, respectively.

Light moves. Slower in lens but faster in the air That’s because light refracts when it comes into contact with various materials.

The density of the medium affects the speed at which light propagates. The only thing that happens when a light beam enters glass from a vacuum (air) is that the wave is delayed (takes longer to go the same distance as a result of the delay).

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Correct question:

When light generated by a lamp in a microscope passes into a lens, the speed of the light _______ because the glass lens has a _______ refractive index than the air from which the light came.

Answer:

480m/s²

Explanation:

Acceleration is the change in velocity of a body with respect to time;

Acceleration = change in velocity/change in time

change in velocity = 29,500 - 24,000

change in velocity= 5,500

Change in time = 55 - 5

change in time = 50secs

Substitute into the formula;

spaceships acceleration = 24000/50

spaceships acceleration = 480 m/s²

Hence the spaceships acceleration is 480m/s²

Answer:

-1.46 m/s^2

Explanation:

Write down what is given first:

v0 = 12 m/s

vf = 0 m/s

d = 45 m

We are trying to find acceleration, so we will use the equation vf^2 = v0^2 + 2ad

Plug in the values we have:

0^2 = 12^2 + (2 x 45 x a)

a = - 1.46 m/s^2

Note that this acceleration is negative because the body is slowing down, so the acceleration with be negative, because the change in velocity is negative.

According to the given statement - 1.46 m/s²  is the acceleration of the body.

Acceleration is the rate of change in a moving asteroid's speed and direction over time. When something moves faster or slower, it is considered to be accelerating.

Use the formula a = v / t to determine acceleration, where v stands for the change in velocity and t for the time it took for the change to take place. Use the formula v = vf - vi to determine v, where vf stands for final velocity and vi for starting velocity.

Write down what is given first:

v0 = 12 m/s

vf = 0 m/s

d = 45 m

We are trying to find acceleration, so we will use the equation

vf² = v0² + 2ad

Plug in the values we have:

0² = 12² + (2 x 45 x a)

a = - 1.46 m/s²

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The final speed of both playdoughs which stick together after the collision is 0.5 m/s

The mass of the first playdough = 0.5 kg

The mass of the second playdough = 0.25 kg

The initial speed of the first playdough =  1.5 m/s

The initial speed of the second playdough = 2 m/s

The final speed of both playdoughs can be found using the formula,

       m₁u₁ + m₂u₂ = (m₁ + m₂) v

where m₁,m₂ is the mass of the first and second playdough respectively

           u₁,u₂ is the initial speed of the first and second playdough respectively

           v is the final speed of both playdough

Let us substitute the known values in the above equation, we get

          0.5 x 1.5 + 0.25 x 2 = (0.5 + 0.25) v

                         0.75 x 0.5 = 0.75v

                                  0.375 = 0.75v

                                         v = 0.375 / 0.75

                                            = 0.5 m/s

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Answer:

Explanation:

Kinetic energy formula

Given

Solving

m=0.038kg

v=80m/s

Kinetic energy

Answer:The principle that states that a change in pressure at any point in a fluid in a closed container is transmitted equally and unchanged in all directions throughout the fluid is known as Pascal's principle.

Explanation:.

Answer:

All cells come from pre-existing cells

Explanation:

Rudolf Virchow, a German Physician, stated the theory that all cells arise from pre-existing cells. He used this theory to explain disease pathology at the cellular level. His work helped clarify that diseases occur not at tissue or organ level, but at the cellular level. This resulted in more accurate diagnosis of diseases by other scientists.

His legacies includes being among the first to use animals in his research, first to name numerous diseases and also the creation of many medical terms still in use today.

The velocity of the canoe is  1.7 m/s.

Momentum in physics is the products of mass and velocity. Now we have to find momentum with the formula; p = mv

a) Initial momentum = (15)8 m/s + 135 = 255 Kgms-1

b) Since momentum is conserved, the total momentum after throwing the anchor is still 255 Kgms-1

c) The final velocity of the boat is obtained from;

255 Kgms-1 = (15Kg + 135 Kg) v

v = 255 Kgms-1/(15Kg + 135 Kg)

v = 1.7 m/s

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