When converting from smaller to larger units the decimal point travels right *

Screw pump, Drill Machine, Bottle Caps, Faucets and Car Jack are the five examples of screws that we see in everyday life.

Screw is defined as a short, sharp-pointed metal pin with a raised helical thread present round it. It has a slotted head that is used to join things together by rotating it so that it pierces wood and is held tightly on its place. Screw is used in many materials in order to join two frames or bodies with each other. Without this screw, we can't imagine many materials to work together so screw has very high importance.

So we can conclude that Screw pump, Drill Machine, Bottle Caps, Faucets and Car Jack are the five examples of screws that we see in everyday life.

Learn more about screw here: https://brainly.com/question/9620666

#SPJ1

To find the speed of nitrogen molecules in the air at the coldest temperature ever recorded in the US, which was -62.1°C (-78.9°F), we can use the formula for root-mean-square (rms) speed of gas molecules:

v_rms = sqrt(3 * R * T / M)

where:
- v_rms is the root-mean-square speed
- R is the universal gas constant (8.314 J/mol·K)
- T is the temperature in Kelvin (convert from Celsius)
- M is the molar mass of nitrogen gas (N₂, approximately 28.0134 g/mol, which needs to be converted to kg/mol)

Step 1: Convert the temperature to Kelvin
T = -62.1°C + 273.15 = 211.05 K

Step 2: Convert the molar mass of nitrogen to kg/mol
M = 28.0134 g/mol * (1 kg/1000 g) = 0.0280134 kg/mol

Step 3: Calculate the rms speed of nitrogen molecules
v_rms = sqrt(3 * 8.314 * 211.05 / 0.0280134) ≈ 509.65 m/s

So, the speed of nitrogen molecules in the air that day was approximately 509.65 m/s.

To know more about speed of nitrogen molecules:

https://brainly.com/question/13873043

#SPJ11

Answer: 433.331653

T = -62.1 + 273 = 210.9

MM = 0.0280 = 0.028

V = sqrt((3*8.31*T)/(MM)) = 433.331653

Answer:

carbon is that component :)

The statements true in regards to heat is 3. Heat is a form of energy, can be reflected by a mirror, and cannot pass through a vacuum.

Heat is a form of energy. Heat is the transfer of thermal energy from one object to another. Thermal energy is the energy of motion of the particles in an object. Heat can be reflected by a mirror. Heat is a form of electromagnetic radiation, and electromagnetic radiation can be reflected by mirrors.

Heat cannot pass through a vacuum. Heat is a form of electromagnetic radiation, and electromagnetic radiation cannot pass through a vacuum. Heat is not an electromagnetic radiation. It is a form of energy that is transferred from one object to another because of a difference in temperature.

Find out more on heat here: https://brainly.com/question/30738335

#SPJ1

Complete question:

Which of the following statements are true regarding heat?

(a) Heat is a form of energy

(b) Heat can be reflected by mirror

(c) Heat is an electromagnetic radiation

(d) Heat can pass through vacuum

Select the correct answer from the codes given below :

1. 1, 2 and 3

2. 2, 3 and 4

3. 1, 2 and 4

4. 1, 3 and 4

Answer:

Explanation:

(a) Agent exerting the force: Fingers

Object on which it acts: Piece of lemon

Effect of the force: The force applied by squeezing the lemon between the fingers results in the extraction of juice from the lemon.

(b) Agent exerting the force: Hand

Object on which it acts: Toothpaste tube

Effect of the force: The force applied by squeezing the toothpaste tube results in the toothpaste being pushed out of the tube.

(c) Agent exerting the force: Load (weight)

Object on which it acts: Spring

Effect of the force: The weight of the load applies a force on the spring, causing the spring to stretch or compress, depending on the direction of the force.

(d) Agent exerting the force: Athlete's body

Object on which it acts: Bar

Effect of the force: The force applied by the athlete jumping exerts an upward force on their body, allowing them to clear the bar at a certain height.

Answer:

Could you explain that more better?

Explanation:

Answer:

sunlight

Explanation:

Photosynthesis is made possible by energy from the sun.

If it is critical to measure the wavelengths precisely for a given lamp, the grating with the highest number of lines per centimeter (lines/cm) should be used. In this case, the grating with 800 lines/cm would be the most suitable option.

Gratings are optical devices with a periodic pattern of equally spaced lines or grooves. They are commonly used in spectroscopy to disperse light into its component wavelengths. The number of lines per centimeter on a grating determines its resolution or ability to separate closely spaced wavelengths.

Higher line densities (more lines/cm) provide finer resolution and allow for more precise measurement of wavelengths. With a grating having 800 lines/cm, it would offer a higher resolution compared to the gratings with 400 lines/cm or 100 lines/cm. This means it would enable more accurate determination of the specific wavelengths present in the lamp's emission spectrum.

By using the grating with the highest line density, finer details in the lamp's spectrum can be resolved, resulting in more precise measurements of the wavelengths.

To know more about wavelengths refer here

https://brainly.com/question/55797220#

#SPJ11

Answer:

2.96×10⁸ m/s

Explanation:

Speed = distance / time

v = (2 × 3.85×10⁸ m) / (2.60 s)

v = 2.96×10⁸ m/s

Answer:

A. Water pollution contributes to water scarcity.

Explanation:

Water pollution occurs when materials are disposed in water body, thus making it unfit for use. A polluted water can not be used for various purposes that water can be used for. Examples include: recreation, drinking, washing etc.

Water scarcity is the situation when available water is not sufficient for the use of organisms in a community. This majorly occurs in arid area.

Thus, since a polluted water renders water to be useless, therefore water pollution contributes  to water scarcity.

Answer:

Water contributes to water scarcity

Explanation:

pls nobody has ever given me brainiest pls give me brainliest

The speed of Matt is 10 mph.

Doug runs 2 miles an hour faster than Matt, so let Matt’s speed equal x miles per hour. Then Doug’s speed equals x + 2 miles per hour. Each lap is one-quarter of a mile, so Doug runs 1.5 miles in the time it takes Matt to run 1.25 miles.

Rate of Matt is x

Rate of Dough is (x + 2)

Time taken by Matt is 1.25/x

Time taken by Dough is 1.25/(x + 2)

Distance covered by Matt is 1.25

Distance covered by Dough is 1.5

Dough and  Matt  took the same amount of time from the time Doug started, so make an equation by setting the two times in the chart equal to each other, and then solve for x:

            \(\frac{1.5}{(x + 2)}\) = \(\frac{1.25}{x}\)

              1.5x = 1.25(x + 2)

              1.5x = 1.25x + 2.5

           0.25x = 2.5

                   x = 10

So Matt ran at 10 miles per hour.

To know more about time, speed and distance, visit: https://brainly.com/question/26046491

#SPJ4

Answer:

It will roll 9 meters in 3 seconds

Explanation:

3 m/s times 3 is 9

Thanks for warning me.

I'll be careful to stay out of its way.

Do you have a question to ask ?

Answer:

Velocity increases

Explanation:

Gravity is constant, except when discussing "apparent weight"

Mass is constant here

Air resistance would actually increase

Velocity DOES increase, because Earth is pulling the jumper downwards with an unbalanced force. The unbalanced force creates acceleration (-9.81 m/s^2), which means his velocity is increasing constantly.

Newton 2ns law state that external forces that exert on an object is proportional to the mass and the acceleration of an object

Formula : ΣF = ma

ask me if you're confused with my answer

They each pull equally hard, forcing the Sun to shift slightly. when the Sun's gravitational pull holds the planets in their orbits,

The average period of the solar cycles, including irradiance, sunspots, solar flares, radio flux, and polarity flip, is 11 Earth years. According to scientists, the Sun's internal processes and atmospheric interactions are what cause various solar activity. According to the authors, these behaviours and cycles also have an outside origin. Because planets need external constant loading to support their ongoing internal processes and dynamic systems. Here, the Sun's dynamical system and internal processes are activated by the planets' uneven gravitational fields, particularly by the biggest planet in the solar system, Jupiter, which has 67 moons and an orbital period of 11.856 years. As a result, distinct solar cycles are produced.

Learn more about Gravitational here:

https://brainly.com/question/3009841

#SPJ4

Answer:

The rock will hit the ground at 20.44 m from the point of the drop

Explanation:

Horizontal Motion

It occurs when an object is thrown horizontally from a height h at an initial speed v.

The range or maximum horizontal distance traveled by the object can be calculated as follows:

\(\displaystyle d=v\cdot\sqrt{\frac {2h}{g}}\)

When the small rock is dropped from a car at speed v=32 m/s, it starts a curved path that ends up when the rock hits the ground. The height is h=2 m, thus the range is:

\(\displaystyle d=32\cdot\sqrt{\frac {2\cdot 2}{9.8}}\)

\(\displaystyle d=32\cdot\sqrt{0.4082}\)

\(d=20.44\ m\)

The rock will hit the ground at 20.44 m from the point of the drop

Answer:

The momentum of the steel ball is 0.28 kg m/sec.

Explanation:

The momentum of an object can be calculated using the formula: momentum = mass x velocity. In this case, the mass of the steel ball is 100 g, which is equivalent to 0.1 kg. The velocity of the ball is 2.8 m/sec. Plugging in the values into the formula, we get:

momentum = 0.1 kg x 2.8 m/sec

momentum = 0.28 kg m/sec

So the momentum of the steel ball is 0.28 kg m/sec.

Answer:

C. The student should make a concave lens model because it directs light away from the center of the lens

Explanation:

The student should make a concave lens model because it directs light away from the center of the lens.

A lens that has at least one inward-curving surface is said to be concave. Since it is a divergent lens, light rays that have been bent by it are dispersed. Short-sightedness is treated by concave lenses, which are thinner in the center than the borders (myopia).

The earliest known usage of a corrective lens is mentioned in Pliny the Elder's writings (23–79). Pliny claims that Emperor Nero used an emerald, perhaps concave formed to adjust for myopia, to watch gladiatorial matches.

After passing through the lens, light beams appear to originate from a spot known as the primary focus.

Therefore, The student should make a concave lens model because it directs light away from the center of the lens.

To learn more about Concave lens, refer to the link:

https://brainly.com/question/2919483

#SPJ5

No, since their gravity is powerful enough to keep them together even while the universe expands as a whole. Space is not expanding within clusters of galaxies.

A galaxy is a massive clump of gas, dust, and billions of stars and their solar systems bound together by gravity.

No, since their gravity is powerful enough to keep them together even while the universe expands as an entire.

Hence,space is not expanding within clusters of galaxies.

To learn more about the galaxy, refer to the link;

brainly.com/question/2905713

#SPJ1

Answer:

Explanation:

Answer

The true fact is that C is what happens in outer space.  Both rotations take 27.3 days.  

A: The exact opposite is true. It does rotate about it's axis.

B: Again this is just plain false. Given the way we observe it, the moon must be rotating around the earth.

D. they don't. 27.3 hours and 24 hours are not the same.

Answer:

density is equal to mass divided by volume (m/v)

volume: 12×8×9=864cm³

75÷864=0.09

Answer: 0.09g/cm³

Answer:

3.485e+6 inches. hope this helps

Answer:

What I got was a big number but it got around 3.485e+6

Explanation:

To determine the fraction of a beam of unpolarized light that will get through all three polarizers, we need to consider each stage of polarization.

1. First polarizer: When unpolarized light passes through the first polarizer, only half of its intensity is transmitted due to polarization. This can be represented as 0.5.

2. Second polarizer (45°): The Malus' law states that the intensity of transmitted light through a polarizer is proportional to the square of the cosine of the angle between the transmission axes of the polarizers. In this case, the angle is 45°, so we get:
 Intensity = 0.5 * (cos(45°))^2 = 0.5 * (0.707)^2 = 0.5 * 0.5 = 0.25.

3. Third polarizer: The angle between the second and third polarizers is also 45°, so the intensity transmitted through the third polarizer is:
  Intensity = 0.25 * (cos(45°))^2 = 0.25 * (0.707)^2 = 0.25 * 0.5 = 0.125.

So, the fraction of a beam of unpolarized light that will get through all three polarizers is 0.125, or 12.5% of the original intensity.

To know more about Intensity here:

https://brainly.com/question/17323212

#SPJ11

Answer:

B

Explanation:

kinetic energy (KE) is the energy possessed by moving bodies. It can be expressed as:

KE = \(\frac{1}{2}\)m\(v^{2}\)

Where: m is the mass of the object, and v its speed.

For example, a stone of mass 2kg was thrown and moves with a speed of 3 m/s. Determine the kinetic energy of the stone.

Thus,

KE =  \(\frac{1}{2}\) x 2 x \(3^{2}\)

     = 9

KE = 9.0 Joules

Assume that the speed of the stone was 4 m/s, then its KE would be:

KE =  \(\frac{1}{2}\) x 2 x \(4^{2}\)

     = 16

KE = 16.0 Joules

Therefore, it can be observed that as speed increases, the kinetic energy increases. Thus option B is appropriate.

The answer is that useful mechanical work is being done in both scenario 1 (Dave climbing a ladder) and scenario 3 (Dave washing his car).

Useful mechanical work is being done in both scenario 1 (Dave climbing a ladder) and scenario 3 (Dave washing his car). Let's examine each scenario:

Dave is climbing a ladder: In this scenario, Dave is exerting a force against gravity to move his body upwards. This involves the application of force over a distance, which is the definition of mechanical work. Therefore, useful mechanical work is being done as Dave climbs the ladder.

Dave's stomach begins to digest his lunch: Digestion is a biological process that occurs within the body and is not considered mechanical work. It involves chemical and enzymatic reactions in the stomach to break down food, but it does not involve the application of force over a distance. Thus, no useful mechanical work is being done in this scenario.

Dave washes his car: When Dave washes his car, he applies force to the cleaning materials and moves them across the car's surface, exerting work against friction. This work results in the cleaning of the car and is considered useful mechanical work.

Therefore, the answer is that useful mechanical work is being done in both scenario 1 (Dave climbing a ladder) and scenario 3 (Dave washing his car).

Learn more about work at: https://brainly.com/question/28356414

#SPJ11

Answer:

hiiiiiiiiiiiiiiiiiiiiiiiiii

Answer:

Hiii , how are you holding up with corona?

Explanation:

Hey there!

Answer:

9.4 million kilometers (km) converted to light years would be 9.93580784e-7 I believe.

Hope this helps!

Answer:6CO2 + 6H20 + (energy) → C6H12O6 + 6O2 Carbon dioxide + water + energy from light produces glucose and oxygen

Explanation: