____ is a process by which organisms with characteristics suited to the environment will survive and reproduce.

Answer:

A black hole is a region of spacetime where gravity is so strong that nothing—no particles or even electromagnetic radiation such as light—can escape from it. The theory of general relativity predicts that a sufficiently compact mass can deform spacetime to form a black hole.

Answer:

they are mysteries

Explanation:

there is no good answer that I know of because we haven't studied that far out in space

Global trade winds are primarily caused by the interaction of convection in the atmosphere with the spinning of the Earth (option c).

These persistent wind patterns occur due to the uneven heating of the Earth's surface by the Sun, creating pressure differences between the equator and the poles. Warm air at the equator rises, and cooler air from higher latitudes moves in to replace it. As the Earth rotates, the Coriolis effect deflects these winds to the west, creating the trade winds. While factors like the ocean's thermohaline current, changes in the magnetic field, and gravitational pull play roles in various atmospheric processes, it is the combination of convection and Earth's rotation that directly causes global trade winds.

Gases made up Atmosphere I, mostly hydrogen, water vapour, methane, and ammonia. After afterwards, when the planet was being bombarded by asteroids and volcanoes released chemicals like nitrogen and carbon dioxide, our atmosphere began to evolve into atmosphere II. As a result, conditions during stage II of atmospheric evolution were characterised by high levels of water vapour and carbon dioxide.

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The frequency of the infrared light is 4.6 × 10¹² Hz. The result is obtained by using the formula for frequency.

The formula for the frequency of a light is

f = c/λ

Where

Infrared light is the band of the electromagnetic radiation spectrum with the wavelength between 780 nm to 1.300 nm.

When it is converted to mm, it would be

0.70 mm - 1.3 mm

An infrared light has a wavelength of 6.5 × 10⁻⁵ m. (The most possible unit).

The frequency would be

f = c/λ

f = (3 × 10⁸)/(6.5 × 10⁻⁵)

f = (3 × 10⁸)/(6.5 × 10⁻⁵)

f = 0.46 × 10¹³ Hz

f = 4.6 × 10¹² Hz

Hence, the frequency of the infrared light is 4.6 × 10¹² Hz.

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Answer:

Good one

Explanation:

Hydrogen has the highest thermal conductivity of any gas.

Answer:

D = 18m

Explanation:

We use this formula:

Work = Force * Distance

Now, we replace it:

W = F*D

1,350J = 75N * D

D = 1,350/75

D = 18m

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The efficiency of a single movable pulley is not 100 % because the applied load is half of the load to be lifted.

MA = Fo / Fi

MA = Mechanical advantage

Fo = Output force

Fi = Input force

In a single movable pulley,

Fi = 0.5 Fo

MA = Fo / 0.5 Fo

MA = 2

Efficiency = MA * 100

Efficiency = 2 * 100

Efficiency = 200 %

A movable pulley does no have a fixed axis of rotation. In a movable pulley the forces are multiplied at the other end. So the effort required to pull the load is easier than a fixed pulley.

Therefore, the efficiency of a single movable pulley is not 100%

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The net electric field at point P is zero.

To find the electric field at point P, we need to use the formula E = kq/r^2, where k is the Coulomb constant (9 x 10^9 Nm^2/C^2), q is the magnitude of the charge (1.1 x 10^-11 C in this case), and r is the distance from the charge to point P (5 x 10^-3 m). Since there are two charges of equal magnitude but opposite signs, the total electric field at P is the vector sum of the individual electric fields due to each charge. The direction of the electric field is from positive to negative, so the two electric fields will have opposite directions and cancel each other out.

Therefore, the net electric field at point P is zero.
The Electric Field (E) at point P can be found using the formula E = kQ/r^2, where k is the electrostatic constant (8.99 x 10^9 Nm^2/C^2), Q is the charge magnitude (1.1 x 10^-11 C), and r is the distance from each charge to point P (0.5 x 10^-2 m).

Since both charges have equal magnitudes and point P is located exactly halfway between them, their Electric Fields at point P will cancel each other out due to their opposite directions. Therefore, the net Electric Field (E) at point P will be 0 N/C.

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Answer:

The answer is F

Explanation:

F stands for Fluorine, which is an element and consists of one atom.

Answer:

f

Explanation:

i took quiz

Answer:

I think 5 Newtons to the right.

Answer:

5

52.386552

Explanation:

5 Newton is right

Answer:

450ms^-2

Explanation:

m = 40g, then converting to standard unit

m = 40g/1000g × 1kg = 0.04kg

F = 18N

using the formula for Force

F = ma

Then making acceleration the subject of the formula; you Will get

a = F/m

a = 18N/0.04Kg

a = 450ms^-2

An electric pencil sharpener is a small motorized appliance for sharpening or refreshing the points on lead pencils.

An electric pencil sharpener is a small motorized equipment for polishing or fresh the factors on lead pencils. Within the hollow, a small electric powered motor turns a blade meeting at high velocity. The blades shave wooden and lead from the pencil's cease, bringing it to some extent.

The old-fashioned pencil sharpeners which are established to the wall and cranked through a manage are an instance of a compound system that is composed  simple machines: the wheel and axle and a wedge.

You could sharpen colored pencils in an electric sharpener, however make certain to be very mild with your pencils and often easy your sharpener to put off any wax increase. If performed improperly, sharpening your colored pencils in an electric sharpener can harm each your pencils and your sharpener.

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The magnitude of the average force exerted on the ball by the plate during contact is approximately 0.204 N (rounded to three significant digits).

To find the magnitude of the average force exerted on the ball by the plate during contact, use the concept of impulse. Impulse is defined as the change in momentum of an object and can be calculated as the product of the average force and the time interval over which the force acts.

Given:

Mass of the steel ball (m) = 51 g = 0.051 kg

Contact time (Δt) = 0.50 ms = 0.50 x 10^-3 s

Total time for a round trip (T) = 3.00 s

First,  find the initial and final velocities of the ball. Since the ball falls and rebounds elastically, the change in velocity during contact will be twice the velocity just before contact.

The total distance traveled during a round trip is twice the height of the ball:

2h = g * (T/2)^2

where g is the acceleration due to gravity.

The initial velocity (v_initial) of the ball just before contact can be found using the formula:

v_initial = sqrt(2gh)

where h is the height of the ball.

The final velocity (v_final) of the ball just after rebounding is equal in magnitude but opposite in direction to the initial velocity.

The change in velocity (Δv) during contact is given by:

Δv = 2 * v_initial

Now, calculate the average force (F_avg) exerted on the ball using the impulse formula:

Impulse = F_avg * Δt = Δp

where Δp is the change in momentum.

The change in momentum (Δp) is equal to the mass of the ball times the change in velocity:

Δp = m * Δv

Putting it all together:

F_avg * Δt = m * Δv

F_avg = (m * Δv) / Δt

Now, substitute the given values and calculate the magnitude of the average force exerted on the ball by the plate during contact.

The magnitude of the average force exerted on the ball by the plate during contact is approximately 0.204 N (rounded to three significant digits).

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The characteristics of high-mass and low-mass stars are as follows:

Low-mass stars:
1. Final corpse is a white dwarf: Low-mass stars end their lives as white dwarfs after shedding their outer layers as a planetary nebula.
2. Have longer lifetimes: Low-mass stars have longer lifetimes because they consume their fuel at a slower rate.
3. The Sun is an example: The Sun is a low-mass star in its main sequence life.
4. End life as a planetary nebula: Low-mass stars shed their outer layers and create a planetary nebula, leaving behind a white dwarf.

High-mass stars:
1. Have higher fusion rate during the main sequence life: High-mass stars have a higher fusion rate due to their larger mass and gravitational force.
2. Late in life fuse carbon into heavier elements: High-mass stars undergo fusion of heavier elements like carbon, eventually leading to the formation of iron.
3. End life as a supernova: High-mass stars end their lives in a massive explosion called a supernova, which results in the creation of a neutron star or a black hole.

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Answer:

The energy output of a blender is 1.4 kWh. If the blender is 85% efficient, how much energy is lost to the surroundings?

⇒ 0.25 kWh

During the eighteenth and nineteenth centuries, attempts to precisely measure the astronomical unit  relied largely on rare astronomical events like  the transit of Venus across the Sun.

The method generally involve observing the transit of Venus from different points on the Earth. It also measure the slight differences in the timing of the transit.

By using trigonometry to calculate the angles between the lines of sight to Venus from the different observation points, astronomers could likely determine the distance between the Earth and the Sun.

This method was used in the 18th and 19th centuries and was very much instrumental in determining the value of the astronomical unit to a high degree of precision.

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Answer:

They will Attract each other and act like magnets

Explanation:

When 2 positive or 2 negative particles are near each other they repel. When 2 neutral particles are together they do nothing, but when a positive and a negative are together their charges sort of overlap each other and they attract.

Answer: I think it's the percent abundance. (D)

Explanation: Isotopes are atoms of the same element with similar atomic numbers but different mass numbers.

Work is being done in examples (a) and (c) since there is displacement in the direction of the applied force. In example (b), no work is being done.


a. A train engine pulling a loaded boxcar initially at rest: Work is being done because the train engine applies a force on the boxcar, causing it to move in the direction of the applied force, resulting in displacement.

b. A tug of war that is evenly matched: No work is being done in this case, as the forces applied by each team are equal and opposite, leading to no displacement or movement in any direction.

c. A crane lifting a car: Work is being done here because the crane applies an upward force on the car, causing it to move upwards, resulting in displacement in the direction of the applied force.

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The model house on remote renewable energy will generate (20mmm + 30sss) kilowatt-hours of energy in 10 years.

Given:

Remote Renewable House= 2 windmills + 3 turbines

1 windmill generate mmm kilowatts-hours in a year

Therefore,

2 windmills will generate,

2×mmm=2mmm kwh in a year

In 10 years, 2 windmills will generate

10×2mmm=20mmm

1 solar panel generate sss kilowatt-hour each in 1 year

3 solar panels will generate yearly

3×sss=3sss

In 10 years, 3 solar panels will generate

10×3sss=30sss

Therefore, the total energy generated in the renewable model house is in 10 years

(20mmm+30sss)  kwhr

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Answer:

element name = neon

no of proton = 10

no. if neutron = 9

atomic no. = 10

atomic weight = 20.17179u

it lies in group 18 and period 2

it is nonmetal because it is a noble gas .

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Answer:

Initial velocity is defined as the velocity at time t=0.

Its Unit is m/s.

represented by u.

calculated by using formula.

v=u+at

u=v-at.

Answer:

Initial velocity is the velocity which the body has in the beginning of the given time period

Hope it helps

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The minimum magnitude of the electric field that balances the weight of the plastic sphere is therefore 3,270 N/C.

A charged plastic sphere of mass 1 g will be balanced by the minimum electric field magnitude which will be equal to the gravitational force acting on the plastic sphere.

The formula for gravitational force is given as:F = m x gwhere F is the gravitational force, m is the mass of the object, and g is the acceleration due to gravity.The force of the electric field (E) acting on a charged object can be represented by: F = Eq where E is the magnitude of the electric field and q is the charge on the object.

For the plastic sphere with a charge of -3.0 nC, the force of the electric field can be given as:F = Eq= (-3.0 nC) * ENow, for the electric field to balance the gravitational force on the plastic sphere, we can equate the two forces:F = m x g= (0.001 kg) * (9.81 m/s²)= 0.00981 N From the above calculation

we know that F = (-3.0 nC) * E = 0.00981 N, thus we can find the value of E by solving for E: E = F / q= (0.00981 N) / (-3.0 nC)= -3,270 N/C

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Answer:

metal

solid

Explanation:

Answer: Protons are positively charged particles

Explanation:

Answer:

i'm pretty sure it is wave speed or wave

Answer:

1200

Explanation:

a = 1.5 m/s2

F = 1800N

M =?

F = Ma

M = F/a = 1800/1.5 = 1200Kg

Answer:

4th one

Explanation:

Answer:

good morning mam going nme mam morning mam going on in the correct