Plants are eaten by grasshoppers, which are eaten by mice, which are eaten by snakes.

Answer: 1/10th of its weight on Earth.

Explanation: Let's assume that the weight of the object on Earth is W, and the gravitational acceleration on Earth is g. We know that weight is given by the formula:

W = m * g where m is the mass

If the gravitational attraction on another planet is 1/10th of Earth's pull, then the gravitational acceleration on that planet will be:

g' = g/10

Using the same formula for weight, the weight of the object on the new planet will be:

W' = m * g'

Substituting the value of g' in the equation above, we get:

W' = m * (g/10)

W' = (m/10) * g

Therefore, the weight of the object on the new planet will be 1/10th of its weight on Earth.

W' = (100/10) N = 10 N

So, the weight of the same object on a planet where the gravitational attraction has been reduced to 1/10th of Earth's pull would be 1/10th of its weight on Earth.

The next step after a physicist will most likely take in answering a question after performing an experiment is to analyze the results. Thus, the correct option is A.

A hypothesis can be defined as a proposed explanation for a phenomenon or an objective. For a hypothesis to be a scientific hypothesis or proven, the scientific method which is required for analysis is that one can test it and prove it.

Experimentation of a hypothesis often generates multiple measurements of the same thing or type, that is to replicate measurements, and these measurements of the hypothesis are subjected to error. Statistical analysis can be used to summarize the observations carefully by estimating the average of all the measurements, which provides an estimate of the true mean.

Therefore, the correct option is A.

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Answer: analyze results

Explanation: they always check over they're work

Answer:That only applies to highly polished surfaces, eg mirrors.

If you take a high quality laser (ie with low divergence) and aim it at a wall, you can see the spot where the laser beam reaches the wall from anywhere with a direct line-of-sight to the spot where the laser beam reaches the wall. This due to micro imperfections on the surface of the wall. At a microscopic level, the wall surface is very rough and pointing in all directions.

As to why, a beam of light bounces of a highly polished surface, I can only surmise that it is essentially due to kinematics, ie the only force opposing the light beam is normal to the surface, hence there no forces along the reflective surface. Since there are no forces along the reflective surface, the speed component of light along the reflective surface remains unchanged. However, on the plane perpendicular to the reflective surface the, the light photons bounce off at the same speed at which the hit the reflective surface because the mass of the reflective surface is much much much larger than the mass of the photons, which means that the reflective surface won’t move at all. Since conservation of momentum requires that momentum after the collision be the same as the momentum before the collision then the only way for that to happen is if the velocity of the photon perpendicular to the reflective surface is of exactly the same magnitude but in the opposite direction. Vector resolution of the speed component of the reflected beam means that the angle of reflection must be the same as the angle of incidence.

Explanation:

Projectile motion is a combination of horizontal and vertical types of motion.

Projectile motion is a form of motion experienced by an object or particle that is projected near Earth's surface and moves along a curved path under the action of gravity only. Objects experiencing this motion have a constant velocity in the horizontal direction, and a constantly changing velocity in the vertical direction. Types of Projectile Motion are Oblique projectile motion, Horizontal projectile motion and Projectile motion on an inclined plane.

Therefore, third option is the correct answer.

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Answer:

A researcher seeks to prove that babies smile at two months old. She counts some confused expressions as smiles.

Explanation:

This is the answer because its not actual date due to the fact she's using her opinion to decided whether or not the expression a baby is making is a smile, whereas the other answers had factual data involved.

The work done by a conveyor belt motor can be expressed as the product of the force applied by the motor and the distance over which the force is applied.

W=Fd is the equation for work done by a constant force. In this equation, W represents the work done (measured in units of energy such as joules), F is the force applied (measured in units of force such as newtons), and d is the distance over which the force is applied (measured in units of length such as meters).

This equation states that the work done is equal to the product of the force applied and the distance over which it is applied. This equation applies to a wide range of physical systems, including conveyor belts, and is a basic equation used in physics and engineering.

However, over time, the work done by the motor can change due to a variety of factors such as internal friction and heating. As internal friction increases, the force required to move the belt increases, resulting in a decrease in the work done by the motor.

Additionally, as the motor heats up, its efficiency may decrease, leading to a reduction in the work done by the motor. Additionally, if the load on the conveyor belt changes, the work done by the motor will also change. These changes in work done by the motor can be monitored and compensated for through the use of sensors and control systems that monitor the conveyor belt's performance and adjust the motor's output as needed.

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Answer:

1st is magnetic waves. second one is air.

frequency = velocity divided by wavelength

Ultraviolet (UV) radiation lies between wavelengths of about 400 nanometres and 10 nanometres, corresponding to frequencies of 7.5 × 1014 Hz to 3 × 1016 Hz.

The force between the wires is 1*10⁻⁷T.

What is ampere?

The rate at which electrons flow or current flows across an electrical conductor is measured in amperes. An electrical charge of one coulomb (6.24 x 1018 charge carriers) per second that passes a particular place is represented by one ampere of current.

What is force?

A mass-containing object's change in velocity is referred to as a force when a push or pull is applied to it. A body can change its state of rest or motion when an external force acts on it. It is directed and has a magnitude.

The concepts required to solve the given problem is magnetic field due to a current carrying wire and force on a current carrying wire due to magnetic field.

Initially, determine the magnetic field at one wire due to other wire by using expression magnetic field due to a current carrying wire. Then, determine the force on the wire by using magnetic field, length of the wire and current in the wire.

The current carrying wire creates a magnetic field around the wire and the direction of magnetic field around the wire is known by using right hand rule.

The magnitude of magnetic field B due to a current carrying wire at distance r from the wire is given by following expression.

B=Here, I is the current, and μ₀ I/2πr

Here, I is the current, and

μ₀is the permeability.

The magnetic force F on a current carrying wire is given by following expression.

F= BIL

Here, L is the length of the wire.

Step: 1

The magnitude of magnetic field B due to a current carrying wire at distance r from the wire is given by following expression.

B= μ₀ I/2πr

Substitute 1.0 A for I, 2.0 for r, and

4πr*10⁻⁷ H/m

for  μ₀ in the above equation.

B= (4πr*10⁻⁷ H/m) (1.0A)/2πr(2.0m)

=1*10⁻⁷T

Explanation:

The direction of magnetic force on each wire is depends on the direction of current in the each wire. If the current direction of current is same in both wires then force is attractive and repulsive if the direction of current is opposite in both wires.

Therefore,  force between the wires is 1*10⁻⁷T.

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We have that for the Question "Name the two types of vaporization and explain the difference between them. Give one example of each. ​" it can be said that the types of vaporization are

Here privatization of liquid will only happen at the surface of the liquid exclusion then other sections of the liquid

This is is a phenomenon that occurs throughout the liquid

From the question we are told

Name the two types of vaporization and explain the difference between them. Give one example of each. ​

Generally

There are two types of vaporization , and they are

Here privatization of liquid will only happen at the surface of the liquid exclusion then other sections of the liquid

This is is a phenomenon that occurs throughout the liquid

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The time taken for the feather to drop to the surface, given that the gravitational acceleration is 1.6 m/s², is 1.4 s

From motion under gravity, we understood that height and time are related according to the follwing formula:

h = ½gt²

Where

Using the above formula, we can obtain the time taken for the feather to drop to the surface. Details below:

h = ½gt²

1.6 = ½ × 1.6 × t²

1.6 = 0.8 × t²

Divide both side by 0.8

t² = 1.6 / 0.8

Take the square root of both side

t = √(1.6 / 0.8)

t = 1.4 s

Thus, the time take is 1.4 s

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The weak force and the electromagnetic force are two fundamental forces in nature that have distinct characteristics. One notable contrast between them is their range of influence.

The weak force acts within the nucleus of an atom, specifically within protons and neutrons, and has a very short-range, limited to distances on the order of nuclear dimensions.

In contrast, the electromagnetic force has an infinite range, meaning it can act over long distances, reaching out to infinity.

Furthermore, the nature of the forces' interactions differs. The weak force is both attractive and repulsive, meaning it can either attract or repel particles depending on the circumstances.

On the other hand, the electromagnetic force is solely attractive, leading to the attraction of charged particles and the binding of electrons to atomic nuclei.

In summary, the weak force acts within protons and neutrons, with a limited range, and exhibits both attractive and repulsive behavior, while the electromagnetic force has an infinite range, acts between charged particles, and is exclusively attractive.

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Answer:

D 71.75

Explanation:

divide 2,009 miles by 28 hours

Answer:

At neutron star density, the Earth's whole mass would fit inside a 305-meter-diameter sphere.

Explanation:

Answer:

get it done for free on www.brainly.com

Explanation:

Answer:

I will give you $0

Explanation:

I have hardly any money and I don't feel like giving you any.

You can do my work for $0

Thanks! :)

Explanation:

The horsepower (hp) is a unit in the foot-pound-second ( fps ) or English system, sometimes used to express the rate at which mechanical energy is expended. It was originally defined as 550 foot-pounds per second (ft-lb/s). A power level of 1 hp is approximately equivalent to 746 watt s (W) or 0.746 kilowatt s (kW).

Answer: 78m/s  =A

u=0 ,a=3m/sec^2 ,t=25sec

v=u+at

=0+25×3

=75m/s

after 1sec

v=u+at+75

=0+3×1+75

=78m/s

Explanation:

u=0 ,a=3m/sec^2 ,t=25sec

v=u+at

=0+25×3

=75m/s

after 1sec

v=u+at+75

=0+3×1+75

=78m/s

Answer:

eeeeeeeeeeeeeeeeeeeeeeeeeeeee

Explanation:

Answer:

\( \boxed{\sf Distance \ travelled = 62.5 \ m} \)

Given:

Initial velocity (u) = 25 m/s

Final velocity (v) = 0 m/s (Rest)

Time taken (t) = 5 seconds

To Find:

Distance travelled by car (s)

Explanation:

From equation of motion of object moving with uniform acceleration in straight line we have:

\( \boxed{ \bold{s = (\frac{v + u}{2} )t}}\)

By substituting value of v, u & t in the equation we get:

\( \sf \implies s = ( \frac{0 + 25}{2} ) \times 5 \\ \\ \sf \implies s = \frac{25}{2} \times 5 \\ \\ \sf \implies s = 12.5 \times 5 \\ \\ \sf \implies s = 62.5 \: m\)

\( \therefore\)

Distance travelled by car (s) = 62.5 m

The distance  car travel during that time is 62.5 meter.

Acceleration is the rate at which speed and direction of velocity vary over time. A point or object going straight ahead is accelerated when it accelerates or decelerates.

Even if the speed is constant, motion on a circle accelerates because the direction is always shifting. Both effects contribute to the acceleration for all other motions.

Initial velocity (u) = 25 m/s

As the car becomes rest, final velocity (v) = 0 m/s (Rest)

Time taken (t) = 5 seconds.

The deceleration of the car: a = (initial speed - final speed)/time interval

= ( 25 m/s - 0 m/s)/5 second

= 5 m/s²

The distance  car travel during that time = ut - at²/2

= 25 × 5.0 meter - (5×5²/2) meter

= 62.5 meter.

Hence, the distance  car travel during that time is  62.5 meter.

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Answer:

they havve to stay in water to survive

Explanation:

So their are sea animals

Answer:

What separates athletes from their competitors is the word itself, separation — gaining it on the offensive side, or taking it away on the defensive side (There are exceptions of course, one being the contest of offensive linemen and defensive linemen in football where the inverse is true). Speed, strength, and power are great ways to create separation in sports. However, speed, strength, and power all have genetic ceilings

if Betelgeuse were to radiate all of its energy at the peak-intensity wavelength, how many photons.

What is energy?

Energy, which is observable in the execution of labour as well as in the form of heat and light, is the quantitative quality that is transferred to a body or to a physical system in physics. It is a mechanically accepted quantity.

a )

Radius of the sun = .69645 x 10⁹ m .

600 times = 600 x .69645 x 10⁹ m

= 4.1787 x 10¹¹ m .

surface area A = 4π (4.1787 x 10¹¹)²

= 219.317 x 10²²

energy radiated E = σ A Τ⁴

= 5.67 x 10⁻⁸ x 219.317 x 10²² x (3000)⁴

= 100695 x 10²⁶ J

To know the wavelength of photon emitted

\(\begin{aligned}& \lambda_m T=b \\& \lambda_m=\frac{b}{T}\end{aligned}\)

= 2.89777 x 10⁻³ / 3000

= 966 nm

= 1275 /966 eV

1.32 x 1.6 x 10⁻¹⁹ J

= 2.112 x 10⁻¹⁹ J

No of photons radiated = 100695 x 10²⁶ / 2.112 x 10⁻¹⁹

= 47677.5 x 10⁴⁵

= .476 x 10⁵⁰ .

b )

energy radiated by our sun per second

E₂ = σ A 5800⁴

energy radiated by Betelgeuse per second

E₁ = σ  x 600²A x  3000⁴

E₁ / E₂  = σ  x 600²A x  3000⁴ / σ A 5800⁴

= 36 X 10⁴ x 3⁴ x 10¹² / 58⁴ x 10⁸

= 25.76 x 10⁸ x 10⁻⁵

= 25760 times .

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Complete Question

The red giant Betelgeuse has a surface temperature of 3000 K and is 600 times the diameter of our sun. (If our sun were that large, we would be inside it!) Assume that it radiates like an ideal blackbody.a) If Betelgeuse were to radiate all of its energy at the peak-intensity wavelength, how many photons per second would it radiate?b) Find the ratio of the power radiated by Betelgeuse to the power radiated by our sun (at 5800 K).

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The first exoplanet was discovered using the Radial Velocity technique.

This method involves detecting the slight wobbling motion of a star caused by the gravitational pull of an orbiting exoplanet. As the planet orbits the star, the star moves in a small, circular or elliptical motion, affecting its light spectrum.

By observing the Doppler shift in the star's spectral lines, astronomers can deduce the presence of an exoplanet and obtain information about its mass and orbit. In 1995, astronomers Michel Mayor and Didier Queloz announced the discovery of 51 Pegasi b, the first confirmed exoplanet orbiting a main-sequence star.

This groundbreaking discovery demonstrated the effectiveness of the Radial Velocity technique in detecting exoplanets and paved the way for future discoveries.

While the Radial Velocity technique was used for the first exoplanet discovery, other methods like Astrometry, Transit, and Microlensing are also employed in exoplanet research, each offering unique advantages in detecting and characterizing these distant worlds.

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The positions to be considered are the position of the acorn and the earth.

The potential energy is the energy that is possessed by a body by virtue of its position. Hence, the potential energy of a body changes as its position changes.

Hence, to determine how the potential energy of the acorn changes in relation to the earth, the positions to be considered are the position of the acorn and the earth.

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Answer:

90 mAmps

Explanation:

V=IR

V/R = I

9 v / 100 ohm = .09 amps = 90 mAmps

Answer:

307.07N

Explanation:

Given

Weight of object = 250N

angle of elevation  = 18.0°

coefficient of kinetic friction n = 0.26

acceleration = 9.81m/s^2

Required

Force parallel to the ramp

Using Newton second law

F = ma

Fm - Ff = ma

Fm - nR = ma

Fm = ma +nR

Fm = 25(9.81) + 0.26(Wcostheta)

Fm = 25(9.81) + 0.26(250cos18)

Fm = 245.25+61.81

Fm = 307.07N

Hence he magnitude of the force that the rope exerts on the crate parallel to the ramp is 307.07N

The ratio of the speed that maximizes the distance and the speed that minimizes the required power is 1.

Distance is the measurement of space between two objects or points. It is an important concept in mathematics, physics, and many other scientific fields. Distance can be measured in linear units such as meters, kilometers, feet, or miles. It can also be measured in angular units such as degrees, radians, or arcminutes. Distance can be calculated by using various formulas and calculations, such as the Pythagorean theorem or the distance formula.

The choice of w that will minimize the power required to keep moving at speed v is w = √(d/c). The speed u that will maximize the range is u = √(d/c) × v. The ratio of the speed that maximizes the distance and the speed that minimizes the required power is 1.

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Answer:

4m/s2

Explanation:

acceleration=v-u/t...v=12m/s,u=0m/s,t=3sec

a=12-0/3

=4m/s2

Answer:

Because they don't have a telescope to magnify so close

Explanation:

Hope it works for you :)

Answer:

scientists can't see inside a atom because the atoms cant be seen by anything                      hope it help :)

Explanation: