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Answer:

The commonly stated range of human hearing is 20 Hz to 20 kHz. Under ideal laboratory conditions, humans can hear sound as low as 12 Hz and as high as 28 kHz, though the threshold increases sharply at 15 kHz in adults, corresponding to the last auditory channel of the cochlea.

Explanation:

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Answer:

20 Hz to 20 kHz. Humans can hear sound as low as 12 Hz and as high as 28 kHz, though the threshold increases sharply at 15 kHz.

Explanation:

learned this in physics about 2 years ago and its stuck with me ever since lol. sorry i am not the best at explaining lol

Answer:

E i think.

Explanation:

The triple-point of water occurs at 273.16 K (0.01 °C) and a vapor pressure of 0.0060373 atm. At this point water can be solid, liquid and gas. So, option (D) is correct.

phase diagram: a graph that displays the limiting conditions for a substance's solid, liquid, and gaseous phases under changes in pressure, temperature, or another combination of variables, such as solubility and temperature.

The curves in the figure were derived from measurements taken at various pressures and temperatures, and they represent a typical phase diagram for a one-component system (i.e., one made up of a single pure chemical).

The combination of temperature and pressure at which a substance can exist in all three of its states—gas, liquid, and solid—is known as the triple point.

The Kelvin(K), the International System of Units' (SI) fundamental unit of thermodynamic temperature, is defined using the triple point of water. The triple-point of water occurs at 273.16 K (0.01 °C) and a vapor pressure of 0.0060373 atm.

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Answer:

Initial velocity, U = 28.73m/s

Explanation:

Given the following data;

Final velocity, V = 35m/s

Acceleration, a = 5m/s²

Distance, S = 40m

To find the initial velocity (U), we would use the third equation of motion.

V² = U² + 2aS

Where;

V represents the final velocity measured in meter per seconds.

U represents the initial velocity measured in meter per seconds.

a represents acceleration measured in meters per seconds square.

S represents the displacement measured in meters.

Substituting into the equation, we have;

35² = U + 2*5*40

1225 = U² + 400

U² = 1225 - 400

U² = 825

Taking the square root of both sides, we have;

Initial velocity, U = 28.73m/s

Answer:

Explanation:

The force of friction equals the sine component of the force due to gravity

The velocity of the male skater is 2.5 m/s in opposite to the direction of the female skater moving.

According to the law of conservation of momentum, The overall momentum of two or more bodies acting on one another in an isolated system stays constant unless an external force is introduced. As a result, momentum cannot be gained or lost.

Given parameters:

The mass of the male ice skater is: M = 62 kg.

The mass of the female ice skater is: m = 42 kg.

Initially both of them are in rest.

After they push off each other and move in opposite directions, the female skater moves backwards with a speed of v =3.7 m/s.

Let the speed of the male  ice skater is V m/s now.

From  the law of conservation of momentum:

MV + mv = 0

V = - mv/M

= - (42×3.7)/62 m/s

= - 2.5 m/s

Hence, the velocity of the male skater is 2.5 m/s in opposite to the direction of the female skater moving.

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Answer:

v = 31.89 m/s

Explanation:

p = m × v

1,850 = 58 × v

58v = 1,850

v = 1,850/58

v = 31.89 m/s

Answer:

The answer is the shirt would disappear because I would eat him

Answer:

runoff from precipitation

precipitation falls direction into the collection area

Explanation:

i took the test

A collection area gains water as runoff from precipitation or precipitation falling into the collection area.

A collection area is an area set aside for the purpose of collecting water. This water could come into the collection area as precipitation or as surface run off.

Hence, a collection area could gain water via;

Out of the options in the questions, these are two ways in which collection areas can receive water.

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Answer:

Any material that has ferromagnetic property

Explanation:

Materials such as  iron, nickel or cobalt are ferromagnetic element as they behave as small magnets in the presence of moving electric charge or static magnetic field.

When an external magnetic field is applied these ferromagnetic material align in a way that they contribute to produce a stronger magnetic field in the material and remain aligned even after removal of the external magnetic field.

Answer:

A) Add

Explanation:

Answer:

a. add

Explanation:

Net [anything] is just a fancy way of saying total.

(Note that you would subtract if they were going in opposite directions. (Technically, you would be adding a negative, but that's the same as subtracting.))

Answer:

The net force is zero.

Explanation:

Two opposing and equal forces cancel each other out, giving you a net force of zero.

Cell phones emit radiofrequency radiation ( radio waves ), a form of non-ionizing radiation, from their antennas

Brainiest if correct? I'd appreciate it SM :D

Answer:

radio frequency (RF)

The type of radiation emitted by cell phones is also referred to as radio frequency (RF) energy

Explanation:

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Answer:

★ For example, cold water has a higher density than warmer water. In Addition, water gets colder with depth because of the coldness, of the salty ocean water which sinks to the bottom of the ocean basins below the less dense water near the surface

Explanation:

Hope you have a great day :)

Answer: The answer is F

Explanation: because it is I took the test

Answer:

The charge of a neutron is 0  

The charge of an electron is -1

Explanation:

Answer:

The charge of Neutrons is: 0

The charge of Electrons is: -1

Explanation:

Neutrons are uncharged and Electrons are negatively charged. The negative charge of one electron balances the positive charge of one proton. Both protons and neutrons have a mass of 1, while electrons have almost no mass.

Answer:

Kinetic energy and velocity are at zero when the magnets are held apart, and both increase rapidly when they are released and move together. Energy stored in the magnetic field decreases.

Explanation:

easy

The increase in the kinetic energy occurs when both magnets are released.

The kinetic energy and velocity are at zero when the magnets are held apart from one another at a certain distance  but the kinetic energy increases when they are released and move together so we can conclude that the increase in the kinetic energy occurs when both magnets are released.

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Answer:

try the formula v=s/t

v= velocity

s= speed

t=time

Explanation:

Answer:

1. the rocks at the bottom of the aquarium

2.the fish and maybe the plants (if you use live plants)

3. fish interact with there no living things like how one would hide in the grass or something like that.

4. decorations (like a cave or fake house, tho the aquarium its self is a home)

5.they would die, and rot.

Explanation:

rocks are nonliving

fish are living things and so are plants

fish can hide in the plants

the fish can "live" in the decorations, but the aquarium itself is its home.

if something reaches the end of its life span it dies.

Answer:

The answer is B. Silver

Explanation:

I took AP3X quiz.

Answer:

Final velocity, V = 35.5m/s

Explanation:

Given the following data;

Initial velocity = 28m/s

Acceleration = 2.5m/s²

Time = 3 seconds

To find the final velocity, we would use the first equation of motion

V = U + at

Where;

V is the final velocity measured in m/s.

U is the initial velocity measured in m/s.

a is the acceleration measured in m/s².

t is the time measured in seconds.

Substituting into the equation, we have;

V = 28 + 2.5*3

V = 28 + 7.5

Final velocity, V = 35.5m/s

Answer:

the cost of running the bulbs is 11.25p

Explanation:

Given;

cost of running 1 kwh = 10 p

power of filament bulb, P = 60 W

power of the CFL bulb, P = 15 W

time of power consumption, t = 15 hours

Total Energy consumed;

E = (60W + 15W) x 15 hours

E = (75)(15)

E = 1125 Wh

E = 1.125 kWh

Cost of 1.125 kWh  =   1.125 x 10p

                               = 11.25p

Therefore, the cost of running the bulbs is 11.25p

Answer:

i think od maybe

Explanai tion:

Explanation:

Refractive Index is a value calculated from the ratio of the speed of light in a vacuum to that in a second medium of greater density. The refractive index variable is most commonly symbolized by the letter ‘n’ or n’ in a descriptive text and mathematical equations.

Answer:

7657

Explanation:

b. FALSE

If the velocity of particle is high then they will collide with each other with a greater force because their momentum will be high

force is a push or pull on a body .

Momentum is the product of mass and velocity,

More the velocity, higher will be the momentum.

since force is  directly proportional to rate of change of momentum

F = Δp/Δt

so on when bodies having higher velocities collide their rate of change of momentum is higher hence more will be the force

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Answer:

When a magnet is moving relative to a conductor in close proximity, a current is induced within the conductor. This induced current will cause an opposing magnetic field. This opposing magnetic field can be used to levitate a magnet.

Explanation:

Answer:

it's C

Explanation:

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Third model shows how a comet's tail changes during its orbit...

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