What single color of light illuminating a ripe banana will make it appear black?.

Answer:

then it's a rock

Explanation:

i. The gravitational force between the earth and sun can be obtained as follow:

F = GM₁M₂ / r²

F = (6.67×10¯¹¹ × 5.987×10²⁴ × 1.989×10³⁰) / (1.5×10¹¹)²

F = 3.53×10²² N

Thus, the gravitational force between the earth and sun is 3.53×10²² N

ii. The gravitational force between the earth and moon can be obtained as follow:

F = GM₁M₂ / r²

F = (6.67×10¯¹¹ × 5.987×10²⁴ × 7.347×10²²) / (3.844×10⁸)²

F = 1.99×10²⁰ N

Thus, the gravitational force between the earth and moon is 1.99×10²⁰ N

Comparison = G₁ / G₂

G₁ / G₂ = 3.53×10²² / 1.99×10²⁰

G₁ / G₂ = 177

Cross multiply

G₁ = G₂ × 177

Thus, we can say that the gravitational force between the earth and sun is 177 times bigger than the gravitational force between the earth and moon

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ANSWER

EXPLANATION

We want to find out how wings help a plane to fly.

The wings of an airplane are there to help lift the plane. They are shaped to make air move faster over the wings.

They are used for lifting, landing, turning and controlling the airplane. The curve on the wings make the air move faster than the air at the bottom of the wings which appropriates Bernoulli's principle to push the plane into the air.

Answer: The correct option is A ( because the Earth is rotating, with the telescope attached to it).

Explanation:

A telescope is a device that is used mostly for viewing distant objects. It's an optical instruments as it's made up of lens and curved mirror depending on the type of telescope. The first telescope was invented by Hans Lippershey in 1608. It is used extensively in war,sea and astronomical discoveries.

Parts of a typical telescope includes:

--> the optical system: this is the most important part of a telescope. This determines the optical aperture of the telescope, how bright or how sharp the formed image would be. This can be a lens or a mirror.

--> Eyepiece: this magnifies the image formed.

--> Motorized drive system: these drive system are mounted with the telescope to aid in a quick and smooth movement while detecting, for example, celestial bodies. This part of the telescope is important as the telescope is mounted on the earth surface which rotates about its axis from west to east. Since the drive system is motorized, it can automatically move very smoothly from east to west at exactly the same rate that Earth is rotating from west to east, so it can continue to point at the object being observed.

To find the number of turns in the coil, we need to know the value of the magnetic field strength. Without that information, we cannot give a numerical answer.

To solve this problem, we need to use Faraday's Law, which states that the induced EMF in a coil is proportional to the rate of change of magnetic flux through the coil. The magnetic flux is given by the product of the magnetic field strength and the area of the coil perpendicular to the direction of the field. Let's begin by finding the initial magnetic flux through the coil when its area is 0.6 m^2. We know that the induced EMF is 9 V, so we can write:

EMF = -N(dΦ/dt)

where N is the number of turns in the coil, Φ is the magnetic flux, and dΦ/dt is the rate of change of magnetic flux. We also know that the initial area of the coil is 0.6 m^2, so the initial magnetic flux is:

Φ_0 = BA_0 = B0.6

where B is the magnetic field strength.

Now, the area of the coil is halved to 0.3 m^2 in 2 minutes. This means that the area is changing at a rate of:

dA/dt = (0.3 - 0.6)/(2*60) = -0.005 m^2/s

The negative sign indicates that the area is decreasing.

Using Faraday's Law and the above information, we can solve for N:

N = -EMF/(dΦ/dt) = -9/[(d/dt)(BA)] = -9/[B(dA/dt)]

Plugging in the values, we get:

N = -9/[B*(-0.005)] = 1800/B

So, to find the number of turns in the coil, we need to know the value of the magnetic field strength. Without that information, we cannot give a numerical answer.

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The things that get in the way of electrical flow is called insulator.

An insulator is a material (body or substance) that resists electrical flow through it. Therefore, it can be said that the insulator gets in the way of electricity flow. Electrical insulators usually have electrons that are tightly bounded to each other, making them not able to move freely.

Electrical insulators are usually used to support and separate electrical conductors in various electrical equipment. The purpose is to hold the conductors in position without allowing electrical current through itself.

Some examples of electrical insulators are:

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Answer: Insulator

Explanation:

If something gets in the way or breaks the flow of electricity, it is called an insulator.

The source of protons that are pumped out of the mitochondrial matrix in Stage 1 of oxidative phosphorylation is NADH (A).

During Stage 1, electrons from NADH are passed through the electron transport chain (ETC) and this process results in the pumping of protons across the inner mitochondrial membrane from the matrix to the intermembrane space. This proton gradient is then used by ATP synthase to generate ATP during Stage 2 of oxidative phosphorylation.

FADH can also donate electrons to the ETC, but it does not contribute as many protons to the gradient as NADH. H₂O and H₂S are not involved in the electron transport chain or the proton pumping process during oxidative phosphorylation. Understanding the role of NADH and FADH in the electron transport chain is crucial to understanding how cells generate ATP, the primary energy currency of the cell. Hence, the correct answer is Option A.

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Moons of the outer planets may provide a home for life because some of them have environments that are potentially habitable.

For example, Europa, a moon of Jupiter, has an ocean of liquid water underneath its icy surface. The ocean is kept in a liquid state by the tidal forces of Jupiter's gravity, and it is thought to contain more water than all of Earth's oceans combined. This has led scientists to speculate that Europa could harbor life, as liquid water is a necessary ingredient for life as we know it. Other moons such as Enceladus, a moon of Saturn, have also shown evidence of subsurface oceans and possible hydrothermal vents, which are environments that could support life.

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Answer:

potential energy=mgh

=50×10×20

=10000 J

Answer:

m = 3.75 [kg]

Explanation:

We must remember that momentum is defined as the product of mass by Velocity, therefore it can be represented by means of the following equation.

\(P=m*v\)

where:

P = momentum = 93.75 [kg*m/s]

m = mass [kg]

v = velocity = 25 [m/s]

Now replacing, we can clear the mass:

\(P=m*v\\m=P/v\\m=93.75/25\\m=3.75 [kg]\)

The poison was most likely found was B)arsenic

What is poisioning?

Poisoning is defined as harm or death brought on by ingesting, inhaling, touching, injecting, or ingesting different medications, chemicals, venoms, or gases. Many chemicals, including pharmaceuticals and carbon monoxide, become dangerous only when they are consumed in large quantities. While some cleaners only cause harm when consumed, others also release hazardous vapors or fumes.

When large doses of arsenic are ingested or inhaled, arsenic poisoning, also known as arsenicosis, occurs. Gray, silver, or white in hue, arsenic is a form of carcinogen. For humans, arsenic is exceedingly dangerous. Because it has no taste or odor, arsenic is particularly hazardous because you can be exposed to it covertly. After death, the toxin leaves residues on the body.

Hence the poison was most likely found was B)arsenic

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Answer:

That's why if you lean against the wall, you don't just fall through it. The wall pushes back on you as hard as you push on it, and you and the wall stay in place. If you throw something, you put more force behind it than just leaning on it, so it pushes back with more force.

Explanation:

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Answer:

0.451

Explanation:

Problem 1:Consider the waveform shown in figure 7-71 to be the input waveform of an active-low s-r latch. The solution to the problem is as follows:A clock pulse is used to trigger the latch. As a result, the input is latched into the output. When the clock pulse goes low, the latch is turned off, and the output is latched.

As a result, the output is determined by the input. As seen from the waveform, the output follows the input in a digital waveform. In this way, a simple waveform is converted to a digital waveform.The active low s-r latch consists of two NAND gates and two NOR gates. As a result, the inputs of the NAND gates should be connected to the NOR gates. The outputs of the NAND gates should be connected to the input of the NOR gates.

To construct an active low s-r latch, this arrangement is necessary. The S-R latch, in general, has four types of outputs, and the output is determined by the input. Thus, the solution to the problem is that the waveform of figure 7-71 is latched into the output of the active low s-r latch.

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Explanation:

the correct answer is C. that is = 2N-1N = 1N left .

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Force applied is directly proportional to displacement.

It is given by the formula

Here F is the force , k is the spring constant , x is the displacement.

Substituting the values,

Answer:

Explanation:

a)

By Hooke's law

F=kx

⇒kd

=83.8×0.0546

=4.575N

By Hooke's law, F=kx ⇒kd =83.8×0.0546 =4.575N.

The first traditional example of an explanation of elasticity is Hooke's law. Elasticity is the quality of a substance or item that allows it to return to its original shape after distortion.

It is possible to refer to a "restoring force" as the capacity to restore normal shape after distortion. This restoring force, when viewed in the context of Hooke's Law, is often proportional to the degree of "stretch" encountered.

These experiments can range from blowing up a balloon and pulling on a rubber band to calculating the amount of wind pressure required to bend and wobble a tall building.

Therefore, By Hooke's law, F=kx ⇒kd =83.8×0.0546 =4.575N.

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The example provided, where Isaac Newton showed that the same laws govern motion in both realms of Earth and space, best fits the theory of explanation known as Causal Unifications'.

Causal Unifications theory aims to explain phenomena by identifying common causes or underlying principles that apply to seemingly distinct phenomena. In this case, Newton's discovery of the laws of motion demonstrated that the same fundamental principles govern both celestial and earthly motion.

To summarize, the example of Isaac Newton demonstrating that the same laws govern motion on Earth and in space aligns with the Causal Unificationist theory of explanation, which seeks to identify common causes or underlying principles that apply to seemingly distinct phenomena. By discovering the laws of motion, Newton provided a unified explanation for motion in both realms, challenging the previous belief in separate laws for celestial and earthly motion.

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The amount of time taken by her to lift 3,200 kg of snow 1.20 m is 1792 s

η = Pout / Pin

η = Efficiency

Pout = Output power

Pin = Input power

η = 3 %

Pin = 700 W

Pout = η * Pin

Pout = 0.03 *  700

Pout = 21 W

W = F * d

F = m g

F = 3200 * 9.8

F = 31360 N

W = 31360 * 1.2

W = 37632 J

P = W / t

t = 37632 / 21

t = 1792 s

Therefore, time taken by her to lift the snow is 1792 s

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A. Light travels in a straight line.

Expliantion: study island

A stone dropped from a 26 m bridge, takes 2.3 s to reach the water.

A stone is dropped from a bridge and it experiences a uniformly accelerated rectilinear motion. It takes 2.3 s for the stone to reach the water.

We can calculate the height of the bridge, which is equal to the displacement of the stone, using the following kinematic equation.

\(s = ut + \frac{1}{2} a t^{2} = (0m/s)(2.3 s) + \frac{1}{2} (9.8m/s^{2} ) (2.3s)^{2} = 26 m\)

where,

A stone dropped from a 26 m bridge, takes 2.3 s to reach the water.

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Answer:

Plane (or) regular surface

Explanation:

A smooth surface is also called as plane surface. (It is like a mirror)

Newton's second law and the Atwood machine are often used together in high school physics labs to study the relationship between force, mass, and acceleration.

Newton's second law states that the acceleration of an object is directly proportional to the net force applied to it and inversely proportional to its mass.

The Atwood machine is a simple device that consists of a pulley and two masses connected by a string. By varying the masses and measuring the resulting acceleration, students can experimentally verify Newton's second law.

In the lab, students typically set up the Atwood machine, measure the masses of the two objects, and attach them to opposite ends of the string. They then release the system and measure the time it takes for the masses to move a certain distance.

Using this data, they can calculate the acceleration of the system. By applying Newton's second law, which states that the net force is equal to the mass times the acceleration, students can analyze the relationship between the masses and the resulting acceleration.

This lab provides a hands-on approach for students to understand and apply Newton's second law, reinforcing the concept of force, mass, and acceleration. It also helps students develop skills in data collection, analysis, and drawing conclusions based on experimental evidence.

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Answer:

M a = (M1 + M2) a = F         Newton's Second Law

F = (M2 - M1) g         net force on the system

a = (M2 - M1) / (M1 + M2) g

a = (9 - 7) / (9 + 7) g = 2 / 16 * 10.0 m/s^2 = 1.25 m/s^2

Answer:

i got 6

Explanation:lmk if i’m wrong

A stationary proton is in a uniform magnetic field of 0.20 t. What is the magnitude of the magnetic force on the proton is zero.

Magnetic Field is the region around a magnetic material or a moving electric charge within which the force of magnetism acts.

Magnetic field, B = 0.2 T

Magnetic Force, F = B × v × q,

Here, v = speed = 0,

Hence, the magnetic force on the proton by the above formula,

⇒ F = B v q = 0.

What is the shape of magnetic field lines?

The shape of the magnetic field lines is of around a straight current carrying conductor.

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