Can y’all help me pleaseeee

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:

Is there a map of the town? It doesn't make sense without coridnates or street lengths. If it was a straight isosilese triangles the return time is 3:36pm. This answer doesn't make sense if there is a map.

Explanation:

Side a is 12km Side b 15 km Side c 19.21 km.

9am depearture

11am 12km away rest

11:30am starts at 10 km/h

1:00 pm reaches town

2:00pm done lunch

3:36 pm return home.

Answer:

frying an egg is conduction because the pan is touching the stove and the pan is touching the eggs

Explanation:

Answer: A if thats not right its C

Explanation:

Answer: It's c

Explanation: C

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 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:

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:

The earth is exposed much more during the summer the hours of daylight is increased slightly

Explanation:

Answer:

1. geothermal

2. nuclear

3. biofuel

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:

hope this helps have a good rest of your night :) ❤

2800 m

Given

time = 80 s

average velocity = 35 m/s

Required

total distance before it broke down

Solution

Average velocity : total displacement : total time

Can be formulated

avg velocity = Δx : Δt

Input the value :

Δx=avg velocity x Δt

Δx = 35 m/s x 80 s

Δx = 2800 m

In addition, if we are asking for velocity, we must know the starting and ending points (displacement)

But if we calculate the total distance, what is written is the average speed

avg speed = total distance : total time

Answer:

true

Explanatiohope this helps

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:

Assuming that you meant the final velocity of 50 m/s was reached in 10 s, the answer would be 5 m/s^2.

Explanation:

[tex]V_{f} = V_{i} + at[/tex]

So we update that with the values that we have.

[tex]50 = 0 +a(10)[/tex]

then simplify that using algebra to solve for a and we get 5 m/s^2

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:

8.803 s

(but this is only if it's a free fall, which we assume since we didn't get the mass of the hulk)

Answer:

C. Kinetic energy changed to potential energy.

Explanation:

The kinetic energy is converted to potential energy when he reaches the top of the hill.

As with every system, energy is neither created nor destroyed but transformed from one form to another.

This is from the law of conservation of energy.

Kinetic energy is produced when Harry moves the up the hill. As he reaches the top of the hill and comes to rest, potential energy is formed.

Potential energy is the energy due to the position of a body.

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.))

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

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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:

it's C

Explanation:

have a nice day............

Answer:

Significant Other

Explanation:

that comes to mind when I see that

Autosomes are homologous chromosomes i.e. chromosomes which contain the same genes (regions of DNA) in the same order along their chromosomal arms. The chromosomes of the 23rd pair are called allosomes consisting of two X chromosomes in most females, and an X chromosome and a Y chromosome in most males.

Answer:

4

Explanation:

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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