1. Find the work done:
a) work done = ?
force = 40 N
distance = 2.5m

​

The inverse square relation implies that  force resulting from gravity between two masses will decrease as the square of the distance between the two masses increases.

The force of gravity between any two objects is given by,

F = GM₁M₂/R²

Where,

M₁ and M₂ are the masses of the bodies.

R is the distance between them.

We know, if the masses are constant. then the force of gravity will be inversely proportional to the square of the distance between them.

This is what inverse square relation means here.

As the force of gravity and the square of the distance are inversely proportional to each other,

So, when the square of the distance between the masses increases, the force of gravity between the decreases.

Hence of all the options provided, b is the correc0,t which says, the force will decrease on increasing the square of the distance.

To know more about inverse square relation, visit,

https://brainly.com/question/2114742

#SPJ4

Complete question - Gravity obeys an inverse square relation. This statement implies that the force resulting from gravity between two masses a. will increase as the distance between the two masses increases b. will decrease as the square of the distance between the two masses increases. c. will cause the two masses to move away from each other. d. will cause the two masses to move in a straight line. e. will cause the two masses to orbit each other.

Answer:

more than food. They’re complex mental health conditions that often require the intervention of medical and psychological experts to alter their course.

These disorders are described in the American Psychiatric Association’s Diagnostic and Statistical Manual of Mental Disorders, fifth edition (DSM-5).

In the United States alone, an estimated 20 million women and 10 million men have or have had an eating disorder at some point in their life (1).

This article describes 6 of the most common types of eating disorders and their symptoms.

Answer: Anorexia Nervosa

Explanation:

Answer:

girl bye you must love to exercise

:D

Answer:

Batteries are systems that store chemical energy and then release it as electrical energy when they are connected to a circuit. Batteries can be made from many materials, but they all share three main components: a metal anode, a metal cathode and an electrolyte between them. The electrolyte is an ionic solution that allows charge to flow through the system. When a load, such as a light bulb, is connected, an oxidation-reduction reaction occurs that releases electrons from the anode while the cathode gains electrons

Explanation:

The displacement at a constant acceleration of 3.0\(m/s^{2}\) is 526.5m.

Distance, which is a scalar quantity, describes "how much ground an object has covered" while moving. The term "how far out of place an object is" relates to displacement, a vector number that describes the total change in position of the object.

For constant acceleration, displacement is:

\(d = (\frac{1}{2} ) (\frac{v_{f}^{2} - v_{i} ^{2} }{a} )\)

\(d = \frac{60^{2}-21^{2} }{2*3}\)

\(d = \frac{3600-441}{6}\)

\(d = \frac{3159}{6}\)

d = 526.5m

Therefore, the displacement at a constant acceleration of 3.0\(m/s^{2}\) is 526.5m.

The complete question is: An airplane accelerates with a constant rate of 3.0m/s^2 starting at a velocity of 21m/s. If the final velocity is 60m/s what is the displacement during this period?

Learn more about displacement here:

https://brainly.com/question/28609499

#SPJ9

Answer:they are a renewable source

Explanation: because they come from the ocean and the ocean is 75% of the world so there will always be waves.

Answer:

Core: the temperature at the very center of the Sun is about 27 million degrees Farenheit (F). The temperature cools down through the radiative and convective layers that make up the Sun's core.

Explanation:

it is about 27 million degrees Fahrenheit

good luck :D

Answer:

t = 0.995 s, 5.127 s

Explanation:

Δx = v₀t + 1/2at²

25.0 m = (30 m/s)t + 1/2(-9.8 m/s²)t²

-4.9t² + 30t - 25 = 0   solve this quadratic equation for t (2 solutions)

t = 0.995 s, 5.127 s

It reaches a height of 25 m in 0.995 s, then again 5.127 s later on its way back down

Answer:3000km/h

Explanation:

speed=distance/time

216,000km/72hrs

=3000km/h

Well, first of all, if there are astronauts aboard that ship, I hope they don't try to climb out yet.  If they pointed straight at the moon and covered 216,000 km so far, they still have another 168,000 km to go before they get there.

Average Speed = (distance) / (time)

Speed = (216,000 km) / (72 hours)

Average Speed = 3,000 km/hr

also

Speed = (216,000 km) x (1000m/km) / (72 hr x 3600sec/hr)

Average Speed = 833.33 m/s

There's not enough information given to find the ship's velocity.

Answer:

As the centripetal force acts upon an object moving in a circle at constant speed, the force always acts inward as the velocity of the object is directed tangent to the circle. ... In fact, whenever the unbalanced centripetal force acts perpendicular to the direction of motion, the speed of the object will remain constant.

Answer: False

Explanation: I took the quiz lol

If pressure has to be decreased the height of the piston needs to be increased which will increase volume of gas eventually decreasing the pressure.

The thrust (perpendicular force on a surface) acting per unit area of a body is referred to as pressure. It can be stated mathematically as follows: Pascal is the SI unit of pressure (Pa). One Pascal is the amount of pressure one Newton of force applies to a square inch of space. Additionally, 1 P a = 1 N / m 2. In the International System of Units, pressure or stress is measured in pascals (Pa) (SI). It bears Blaise Pascal's name, a mathematician and physicist. Applied force of one newton (N) per square metre is equal to one pascal (P) (m2).

Learn more about the Pressure here: https://brainly.com/question/28012687

#SPJ4

Answer:

Osmium

Explanation:

Because Osmium has the highest numberic value

The work  was done to move the block  across the floor  is 400 Joule.

The definition of force in physics is: The push or pull on a massed object changes its velocity. An external force is an agent that has the power to alter the resting or moving condition of a body. It has a direction and a magnitude.

A spring balance can be used to calculate the Force. The Newton is the SI unit of force.

Force applied on the block: F = 40 N.

Displacement of the box = 10 m.

Hence, work  done to move the block = Force × Displacement

= 40 × 10 joule

= 400 joule.

Learn more about force here:

https://brainly.com/question/13191643

#SPJ1

Electromagnetic radiation is a sort of energy emission. This has two components, electrical and magnetic components, as is clear from the name. The radiation is hence known as electromagnetic radiation. In Fig. 1.1, it is depicted. From a very low frequency of 3 Hz to a very high frequency of 300 EHz (1 EHz = 1018 Hz), this radiation has a wide frequency range. Table 1.1 lists the metric prefixes along with their symbols.

The magnetic and electric vectors are perpendicular to one another and to the path of propagation. In Fig. 1, this is depicted. 1. Depending on the frequency, this electromagnetic spectrum is separated into different section

 Wavelength and Frequency Relationship

Wavelength

According , a wavelength is the separation between two crests or troughs. It is described in the "electronic spectrum" in terms of nm. 1 nm = 10−9 m. Radiation's energy and wavelength are inversely related. In other words, energy increases when the wavelength lowers and decreases when the wavelength grows.

In the IR spectrum, wavenumber, which has the SI value of cm1, is used in place of or v.

 The relationship between frequency and wavelength

where is the wavenumber, is the wavelength, c is the speed of light, and is the frequency of the radiation.

To know more about wavelength, click the link below;

https://brainly.com/question/4112024

#SPJ4

The speed of sound in the organ pipe is 320 m/s.

To find the speed of sound, we will first determine the frequencies of the second and third modes for a closed pipe organ.

For a closed pipe, the formula for the fundamental frequency (first mode) is:

f1 = v / 4L

where f1 is the fundamental frequency, v is the speed of sound, and L is the length of the pipe.

The second mode (n=3, because only odd harmonics are allowed in a closed pipe) and third mode (n=5) frequencies are:

f2 = 3 * f1
f3 = 5 * f1

We know that f3 - f2 = 200 Hz. Substituting the expressions above, we get:

5 * f1 - 3 * f1 = 200 Hz
2 * f1 = 200 Hz

Now, we can find the fundamental frequency:

f1 = 200 Hz / 2 = 100 Hz

Now we will use the formula for the fundamental frequency of the closed pipe to find the speed of sound:

f1 = v / 4L
100 Hz = v / (4 * 0.8 m)

Solving for v:

v = 100 Hz * (4 * 0.8 m)
v = 320 m/s

Learn more about speed  here:-

https://brainly.com/question/17661499

#SPJ11

True. In Workspace Mode, it is possible to change the priority of an OCR (Optical Character Recognition) job.

OCR is a process that converts scanned images or printed text into machine-readable text that can be edited and searched. Depending on the size and complexity of the document, OCR jobs can take longer to process than other tasks in Workspace Mode. By changing the priority of the OCR job, users can ensure that it is given higher processing power and completed faster. To change the priority of an OCR job, users can navigate to the "Processing" tab in Workspace Mode and select the OCR job they want to modify. From there, they can adjust the priority level and save the changes. It is important to note that changing the priority of an OCR job may impact the processing of other tasks in Workspace Mode, so users should consider their overall workload before making any adjustments.

Learn more about Optical Character Recognition here:

https://brainly.com/question/31455667

#SPJ11

Answer:

A) 1.2x10^5 J

Explanation:

Momentum is a product of the mass and velocity of particles in motion while impulse is the rate of change of the momentum of particles/objects when a force acts on the object.

The impulse of the collision in system A is twice the impulse of the collision in system B

Impulse is given as J = F.dt

In case of impulse 1,

it is F(1-0.5) = 4* 0.5 = 2 Ns

In case of impulse 2,

it is = 2(2.5 - 1.5) = 2Ns

We saw that, both the impulses are calculated to be 2Ns.

Therefore, both the impulses in the graph are same.

To know more about impulse, refer: https://brainly.com/question/17304001

#SPJ4

Answer:

Light is faster in air than in glass so the speed of light decreases when it passes through glass.

Granite sample having a density of 2.8 g/cm3. Water has a density of 1.0 g/cm3. the granite's specific gravity The solution is 2.8000 g 

The formula can be used to determine the mass of a substance given its density and volume.

Olivine basalt and basalt are the most common rock types found on the Mid-Atlantic Ridge, according to a petrographic analysis of rocks that were dredged from the region by the research vessel Atlantis in 1947 and 1948.

When magma cools quickly, such as when basalt lava erupts from a volcano, many crystals form quickly, resulting in fine-grained rock with crystals that are often much smaller than 1mm in size.

density x volume = mass.

From the inquiry

stone monument's volume =2.8g/ cm³

1.0 g/cm3 is the density.

The granite monument's weight is

mass = 2.8× 1.0

        =2.8000g

Learn more about Density here

https://brainly.com/question/18000877

#SPJ4

The angular acceleration of the barrel ride at the amusement park during the 7.26 seconds is approximately 0.450 radians/sec².

To determine the angular acceleration of the barrel ride, we need to use the following formula:
angular acceleration (α) = (ω_final - ω_initial) / t

where ω_final is the final angular velocity, ω_initial is the initial angular velocity, and t is the time taken.

In this case, the barrel ride starts from rest, so ω_initial is 0 rev/sec. The final angular velocity, ω_final, is given as 0.520 rev/sec. The time taken, t, is 7.26 seconds.

Before we plug the values into the formula, let's convert the final angular velocity from rev/sec to radians/sec. To do this, we use the conversion factor:
1 rev = 2π radians

So, ω_final = 0.520 rev/sec × 2π radians/rev ≈ 3.265 radians/sec

Now, let's calculate the angular acceleration:
α = (ω_final - ω_initial) / t
α = (3.265 radians/sec - 0 radians/sec) / 7.26 sec
α ≈ 0.450 radians/sec²

Therefore, the angular acceleration of the barrel ride during the 7.26 seconds is approximately 0.450 radians/sec².

Learn more about angular acceleration here:

https://brainly.com/question/29428475

#SPJ11

Answer:

5.08cm³

Explanation:

Given parameters

The larger cube has twice the mass of the smaller cube

Mass of smaller cube = 20g

Mass of the larger cube = 2 x 20  = 40g

Density of the smaller cube  = 7.87g/cm³

Unknown:

Volume of the larger cube = ?

Solution:

Density is the mass per unit volume of substance. For all samples of a substance, the density value is the same.

So, the density of the small and large iron is the same

   Density  = \(\frac{mass}{volume}\)  

        Volume  = \(\frac{mass}{density}\)  

 So;

  Volume of larger cube  = \(\frac{40}{7.87}\)  = 5.08cm³

Answer:

5.08cm^3

Explanation:

Explanation:

Force= mass × acceleration

45 N = mass × 15 m/s/s

45/15 kg = mass

3kg = mass

Given,

length of object, \(h_o = 3 cm\)

We know, for flat refracting surface,  

Image distance = object distance

So,

magnification is = \(-1\)

length of the image,

\(h_i = magnification * h_o\\\\h_i = -1 * 3 \\\\h_i = -3cm\)

Here, negative sign means inverted image.

For more information on refraction, visit

https://brainly.com/question/14760207?referrer=searchResults

Answer:

car travel

precipitation

O temperature

Explanation:

Jet streams which is the ability of the object to move at a high speed due to its power is common among some given set of objects. Some are powered by the objects fuel while others are entirely different.

The above given options are actually affected by the jet streams.

Answer:

B. precipitation

C. temperature

Explanation:

this is late but for anyone that's looking for this, hope this will help! :D

By using the lowest resonant frequency, the wave speed is 389.084 m/s.

We need to know about the fundamental resonant frequency to solve this problem. When the string is vibrating at its lowest resonant frequency, it should follow the rule

λ = 2L

where λ is wavelength and L is length of string

From the question above, we know that

f = 922 Hz

L = 21.1 cm

By substituting to the following equation, we can calculate the wavelength

λ = 2L

λ = 2 . 21.1

λ = 42.2 cm

λ = 0.422 m

Find the speed of wave

v = λ . f

v = 0.422 . 922

v = 389.084 m/s

Find more on resonant frequency at: https://brainly.com/question/23262887

#SPJ4