Knowing the constant g what will the gravitational force between two masses be if the gravitational force between them is 36n and the distance is tripled? answer

Answer:

C

Explanation:

im doing the test rn but i think this is right correct me if im wrong also have a good day or night

Warm front

Stationary front

Occluded front

An outward curving lens, or convex lens, converges light rays and is an essential element in optical devices like microscopes and cameras. It has a positive radius of curvature by convention. Convex lenses help correct farsightedness by focusing light rays onto a specific point.

An outward curving lens, also known as a convex lens or a converging lens, is a lens that is curved outward on both sides, resembling the intersection of two spheres. This type of lens causes parallel light rays to converge or come to a point after passing through it. The radius of curvature for a convex surface is positive by convention, which helps in the lens-maker's equation for calculating the focal length of the lens.

Convex lenses are widely used in various optical devices such as microscopes, telescopes, cameras, and eyeglasses to correct farsightedness by focusing light rays onto a specific point, resulting in a clear image.

When two velocities combine, to a ground observer, a package dropped from a plane falls at an angle, but to a pilot moving with the package, it appears to fall vertically. Using Pythagorean theorem, we calculate the speed of the pilot as √(v1^2 - v2^2).

This is a Physics problem that deals with relative velocities. We need to evaluate what is observed by two different observers stationed at different places. The first observer is stationary and they view the package at an angle with the speed v1. The second is a pilot who perceives the same package dropping vertically with the speed v2.

In this scenario, the package has two independent velocities, a horizontal one (which is the speed of the airplane), and a vertical one (which is the speed of the package falling down). To the observer on the ground (which is stationary), both these speeds combine, resulting in the package falling at an angle. But to the pilot, who moves with the package horizontally, only sees the vertical fall. Therefore, they perceive the package falling downwards with the speed v2.

Using the Pythagorean theorem for velocity addition for perpendicular components, we know that v1^2 = (speed of the pilot)^2 + v2^2. Therefore, using algebra, we find the speed of the pilot to be √(v1^2 - v2^2).

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False, you can't only use it to find the volume of liquids

The given statement is false.

At its most fundamental level, volume exists absolutely as a measure of space. When calculating the volume of a liquid, sometimes directed to as capacity, the units liters (L) and milliliters (mL) exist used. Devices used for this measurement include graduated cylinders, beakers, and Erlenmeyer flasks.

Graduated cylinders arrive in a range of sizes, or volume capacities, and much like a measuring cup, volume stands measured by adding liquid to the cylinder and corresponding the liquid level to the graduated scale. The measured volume compares to the volume of liquid contained in the cylinder.

The given statement is false. you can't only use it to find the volume of liquids.

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Answer:

A. Rubbing converts neutrons to protons, increasing the charge

Explanation:

Rubbing two objects creates static electricity. It is also known as charging by friction.  When two objects having different electron affinity are rubbed together, the one with greater electron attraction rips off the electrons from other object. In this way charge is transferred from one to another. The one losing the electrons becomes positively charged and the one gaining the electrons becomes negatively charged. Neutrons do not convert to protons. Thus, this is a wrong statement.

Final answer:

Nicolaus Copernicus is credited with challenging the geocentric model and proposing a sun-centered solar system, which was later supported by other astronomers like Tycho Brahe, Johannes Kepler, and Galileo Galilei.

Explanation:

The scientist who is credited with proposing the idea of a sun-centered solar system is Nicolaus Copernicus. Before the 16th century, the prevailing model of the cosmos was geocentric, developed by Aristotle and Ptolemy, with the Earth at the center. However, Copernicus challenged this view in his treatise "On the Revolutions of the Celestial Spheres", initiating a paradigm shift towards a heliocentric model. This change was further supported by the observations and analyses of Tycho Brahe, Johannes Kepler, and Galileo Galilei, as well as the theoretical framework provided by Isaac Newton's laws of motion and universal gravitation.

Answer:

C. Sore eyes, sore muscles, and lapses in short term memory

Explanation:

Fatigue refers to an overall feeling of tiredness or a lack of energy in accomplishing tasks, e.g. driving.

Causes of fatigue while driving  include;

Symptoms of fatigue  while driving

Fatigue is easy to detect, with symptoms including:

Answer:

B) The unit of the variable on the y-axis is incorrect.

Explanation:

The question to this exercise is in the picture. It is '' What makes the above graph incorrect? ''

Let's analize each option :

A) The variables are plotted along incorrect axes. This is wrong because actually the graph is well-plotted. In a displacement versus time graph we put the time variable in the x-axis and the displacement variable in the y-axis.

B) The unit of the variable on the y-axis is incorrect. This is true. In the graph we can see that [tex]''Displacement(\frac{m}{s})''[/tex] when the units of displacement are units of lengths such as meters or miles for example. Therefore, the B) is a correct option

C) The scale for each axis is not appropriate for the data. This is wrong. Because of the scale for each axis we are able to see the five  data points which are (1,2) ; (2,4) ; (3,6) ; (4,8) and (5,10)

D) The data points have not been plotted clearly. This is wrong. All data points are well-plotted signposted with a point at the intersection of the dashed coordinated lines. For example, the point (1,2) is at the intersection of two lines : one dashed line perpedicular to the x-axis at 1 and one dashed line perpendicular to the y-axis at 2

E) The data points have not been plotted accurately. This is wrong. The data points have been plotted accurately at the intersection of the coordinated dashed lines.

Finally, the only correct option is B)

Answer:  Groundwater exists only in regions that get a lot of rain.

Groundwater is the reservoir of water this water accumulates in the ground surface or subsurface of the earth crust through tiny pores and fractures in the rocks. The source of water are streams of rivers, oceans, lakes and large depositing is because of water from the rain and melting of the snow. It is a source of freshwater in nature.

According to the above description, Groundwater exists only in regions that get a lot of rain can be considered as correct option.

Hello. This question is incomplete. The full question is:

"Which statement best compares the accelerations of two objects in free fall?  1.The heavier object has a greater acceleration. 2.The object that has the greater surface area has the lower acceleration 3. The object that has the smaller mass has the greater acceleration 4.The objects have the same acceleration "

Answer:

The objects have the same acceleration.

Explanation:

The free fall movement was studied by the Italian physicist Galileo Galilei. According to his studies, Galileo showed that bodies in free fall, even those of different masses, would reach the ground at the same time, as they would be subject to the same acceleration. The free fall is, therefore, a movement described by the bodies, abandoned at a certain height, which happens exclusively by the effect of local gravity. In this type of movement, we disregard the effect of drag or friction forces.

The roadway with the highest number of hazards per mile is city roads and street.

The city has a high population of people, this is a combination of both men and women. These categories of people need vehicles to move around the city, they need it go to the office, school, markets and so on.

Due to the high number of individuals in the city there tend to be a high level of traffic, this can lead to accident or other type of road hazards.

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Answer:

Speed of the 100 kg crate, v = 136 m/s

Explanation:

It is given that,

Force exerted by a motor, F = (600+2 s²) N

mass of the crate, m = 100 kg

We have to find the speed of the crate. Force is given by the product of mass and acceleration.

F = m a

g is acceleration due to gravity

[tex]F=m\dfrac{d^2s}{dt^2}[/tex]

[tex]\dfrac{d^2s}{dt^2}=\dfrac{600+2s^2}{100}[/tex]

[tex]\dfrac{d^2s}{dt^2}=6+0.02s^2[/tex]

[tex]\dfrac{d^2s}{dt^2}-6-0.02s^2=0[/tex]

or

s"- 6 - 0.02 s² = 0

On solving the above differential equation using calculator with when initially the crate is at rest s(0) = 0 and s'(0) = 15 m

[tex]s(t)=150\ e^{-\sqrt{2}t}+150\ e^{\sqrt{2}t}-300[/tex]

Differentiating above equation w.r.t t to get velocity of the crate.

So, v = 136 m/s

Hence, this is the required solution.

The answer is Solor flare, this is because this is a sudden eruption of energy that is magnetic on or even near the surface of the star, the sun.

Hope this helps!

Answer:

semantic.

Explanation:

100% correct

Answer:

A

Explanation:

A compass can show that an electric field is present. So, a battery, a coil of wire and a compass together could demonstrate that an electric current produces a magnetic field.

Answer:

a battery, a coil of wire and a compass

Explanation:

A compass can show that an electric field is present. So, a battery, a coil of wire and a compass together could demonstrate that an electric current produces a magnetic field.