Please help. I will give brainliest to first good answer

Answer:

1. A) lamb

candle

torch

sun

B) the stars

light bulb

Toxic Glow-in-the-Dark Millipedes

C) no, humans are not luminous objects

D) on a sunny day the light from the sun hits us and then the light gets reflected to the friends eyes and that is how they can see us.

Explanation:

Answer:

The carbon cycle plays a key role in regulating Earth's global temperature and climate by controlling the amount of carbon dioxide in the atmosphere. The greenhouse effect itself is a naturally occurring phenomenon that makes Earth warm enough for life to exist.

As the burning of fossil fuels and landscape alterations, such as deforestation and industrial agriculture, mobilize fossil carbon into the atmosphere, the earth's carbon cycle is pushed out of balance and climate changes. Human generated climate change is an enormous perturbation in the global carbon cycle.

Explanation:

Answer:

The initial velocity of the second stone is 34.3 m/s

Explanation:

The distance height covered by the second stone will be

75m - 15m = 60 m

Since the two stones hit the ground at the same time.

Using third equation of motion, which state that;

V^2 = U^2 - 2gH

Where

U = Initial velocity

V = final velocity

H = 60 m

g = 9.81 m/s^2

As the stone reaching the ground, that is, coming to rest, V = 0. Therefore,

Substitute all the parameters into the equation

0 = U^2 - 2 × 9.81 × 60

U^2 = 1177.2

U = 34.3 m/s

The initial velocity of the second stone is 34.3 m/s

Answer:

Silage can be made by one or more of the following methods: placing cut green vegetation in a silo or pit; piling the vegetation in a large heap and compressing it down so as to purge as much oxygen as possible, then covering it with a plastic sheet; or by wrapping large round bales tightly in plastic film.

Explanation:

Answer:

7, 3, 2, 0 are in the domain of the function.

Explanation:

sorry if i'm wrong

Answer:

When the sister pushed the bed by herself, she could not move it at all because of gravity and the weight of the bed. Due to the beds mass it prevented the sister from pushing the bed, but since she received help from her brother, their strengths combined to be able to push the bed

The larger the paper airplane the more it will weigh, the more it weighs the more lift will be needed to keep it flying. Eventually weight will become greater than lift and the paper airplane will decend to the ground. In adition the larger the paper airplane the larger its wings can be.

Answer:

3,955.2

Explanation:

I think using order of operations PEMDAS this is right

Answer:

Well, Your answer will be is 840.96 mi.

Good Luck!

[tex]^{Itsbrazts}[/tex]

Answer:

1.35 x 10^6

Explanation:

{(6.67 x 10^-11) x (2.14 x 10^22)} / (x)^2 = .779

I don't know how that works but I found it online and it was right for Acellus

Answer:

5867.56 Newtons

Explanation:

KE = 0.5mv^2

KE = 0.5*0.02kg*766m/s = 5867.56N

Answer:

Fever or elevated body temperature might be caused by:

A virus.

A bacterial infection.

Heat exhaustion.

Certain inflammatory conditions such as rheumatoid arthritis — inflammation of the lining of your joints (synovium)

A malignant tumor.

Many illness-causing microbes do best at the body's normal temperature. A fever raises the temperature beyond which certain microbes need to reproduce. A fever also kicks your child's immune system into high gear, spurring the rapid production of bug-clobbering white blood cells.

Explanation:

google lol

Answer:

Explanation:

Electrons play a major role in all chemical bonds. There is one type of bonding called electrovalent bonding (ionic), where an electron from one atom is transferred to another atom. You wind up creating two ions as one atom loses an electron and one gains one.

Answer:

b. 88, 222

Explanation:

235U₉₂ ----→ Alpha --------→  231P₉₀  ----→- beta -----→ 231Q₉₁ ------→-beta -------→231R₉₂--------→-alpha ------→-227S₉₀ ------→ gamma -----→-227S₉₀ ----------→ neutron ------→-226T₉₀-----------→ alpha --------→222 X ₈₈

Atomic No is 88 , atomic weight = 222 .

Answer: Find the answer in the explanation

Explanation:

The earth wire act as a protective conductor in which current flows to the earth. Whenever there is a faulty flow of current, the earth wire will protect an iPad with a metal casing from letting you get shocked by allowing the faulty current to flow directly to the earth.

With the use of fuse, the wire break when it detects a faulty flow of current and the device will automatically switch off because of break in circuit.

These are to protect you from electric shock from the iPad metal casing.

Answer: The charge in the middle sphere will be distributed by induction.

Explanation: The charge in the middle sphere will be distributed through induction. The ends of the two uncharged bodies develop same charges and mutual attraction occurs. The positive charged body pushes the positive charged of the two uncharged bodies farther away and attracts the negative electrons in them.

Answer:

Force, F = 1 N

Explanation:

We have

Mass of a box is 1 kg

Acceleration with which it is pushed is 1 m/s²

It is required to find the force acting on the box.

Force, F = ma

[tex]F=1\ kg\times 1\ m/s^2\\\\F=1\ N[/tex]

So, the force of 1 N is acting on the box.

Answer:

A mountain is classified as landform that raises at least 1,000 feet or more above its surroundings areas of land.

Answer:

The two neighboring planets with the greatest distance between them is Neptune and Uranus. This happens when they are at the opposite sides of the Sun at approximately. They are 4500 million miles away from each other.

If by adjacent you mean next to each other, in terms of the order of planets in our Solar System, then the closest would be Earth and Venus; which are separated by about 38,000,000 kilometres when in opposition.

I am not sure about the general patterns..

Venus has the longest day of any planet in our solar system. It completes one rotation every 243 Earth days.

A year on Neptune is the longest of any planet, lasting the equivalent of 164.8 years (or 60,182 Earth days). It is obvious because it is also the farthest with the longest orbit.

Outer planets are less dense than the inner planets because they posses a big volume but contains not much mass. Try to imagine 2 rocks, one is big, but is hollow or have a lot of holes; and the other is small, but solid with no holes.

Happy learning!!

The two neighboring planets with the greatest distance between them is Neptune and Uranus. This happens when they are at the opposite sides of the Sun at approximately. They are 4500 million miles away from each other.

A planet is a large, rounded astronomical body that is neither a star nor its remnant.

If by adjacent you mean next to each other, in terms of the order of planets in our Solar System, then the closest would be Earth and Venus; which are separated by about 38,000,000 kilometres when in opposition.

Venus has the longest day of any planet in our solar system. It completes one rotation every 243 Earth days.

A year on Neptune is the longest of any planet, lasting the equivalent of 164.8 years (or 60,182 Earth days). It is obvious because it is also the farthest with the longest orbit.

Outer planets are less dense than the inner planets because they posses a big volume but contains not much mass. Try to imagine 2 rocks, one is big, but is hollow or have a lot of holes; and the other is small, but solid with no holes.

To learn more about planet refer to the link:

brainly.com/question/14581221

#SPJ2

Answer:

175

Explanation:

hope this helps :)

Answer:

175

Explanation:

Answer: New frequency = 103.3Hz

Explanation:

Given that the

Frequency F = 116.5 Hz

The tube is an opened tube.

The relationship between wavelength and the length of the tube is

λ = 2L/n

Where

λ = wavelength

L = length of the tube

n = number of harmonic

For 4th harmonic,

λ = 2L/4 = L/2

But wave speed V = F(λ)

Substitutes (λ) into the wave speed formula

V = FL/2

Let's assume that the V is the speed of sound = 330m/s

Substitutes the V and F into the formula above.

330 = 116.5L/2

Cross multiply

660 = 116.5L

L = 660/116.5

L = 5.67 m

Given that the first valve is pushed, it opens an extra bit of tubing 0.721m long.

New length = 5.67 + 0.721 = 6.39 m

New frequency will be

330 = 6.39F/2

Cross multiply

660 = 6.39F

F = 660/6.39

F = 103.3 Hz

Answer:

Centripetal force F = 0.0078 N

Explanation: Given that the

Mass M = 41 kg

Velocity V = 0.02 m/s

Radius r = 2.1 m

Centripetal force F = MV^2/r

Substitutes all the parameters into the formula

F = (41 × 0.02^2)/2.1

F = ( 41 × 0.0004 )/2.1

F = 0.0164/2.1

F = 0.0078 N

The centripetal force acting upon her is 0.0078 Newton

Answer:

C. It remained at a constant speed

Answer:

The flow speed , pressure and volume flow rate in the bathroom are 6 m/s , 3.3\times10^{5}\ Pa3.3×10

5

Pa and 0.47 L/s.

Explanation:

Given that,

Inside diameter = 2.0 cm

Pressure P= 4.0\times10^{5}\ paP=4.0×10

5

pa

Diameter of pipe = 1.0 cm

Speed at inlet = 1.5 m/s

Height = 5.0 m

(I). We need to calculate the flow speed

Using continuity equation

A_{1}v_{1}=A_{2}v_{2}A

1

v

1

=A

2

v

2

v_{2}=(\dfrac{D_{1}}{D_{2}})^2\times v_{1}v

2

=(

D

2

D

1

)

2

×v

1

Where, A₁ = area of inside

A₂ = area of

v₁ = speed at inlet

Put the value into the formula

v_{2}=(\dfrac{2.0\times10^{-2}}{1.0\times10^{-2}})^2\times1.5v

2

=(

1.0×10

−2

2.0×10

−2

)

2

×1.5

v_{2}=6 m/sv

2

=6m/s

(II). We need to calculate the pressure

Using Bernoulli equation

P_{2}+\dfrac{1}{2}\rho v_{2}^2+\rho g h_{2}=P_{1}+\dfrac{1}{2}\rho v_{1}^2+\rho g h_{1}P

2

+

2

1

ρv

2

2

+ρgh

2

=P

1

+

2

1

ρv

1

2

+ρgh

1

Put the value in the equation

P_{2}+\dfrac{1}{2}\times1000\times6^2+1000\times9.8\times5.0=4.0\times10^{5}+\dfrac{1}{2}\times1000\times(1.5)^2+1000\times9.8\times0P

2

+

2

1

×1000×6

2

+1000×9.8×5.0=4.0×10

5

+

2

1

×1000×(1.5)

2

+1000×9.8×0

P_{2}+18000+49000=4.0\times10^{5}+1125P

2

+18000+49000=4.0×10

5

+1125

P_{2}=4.0\times10^{5}+1125-67000P

2

=4.0×10

5

+1125−67000

P_{2}=3.3\times10^{5}\ PaP

2

=3.3×10

5

Pa

(III). We need to calculate the volume flow rate

Using formula of the volume flow rate

Q= vAQ=vA

Where, v = final velocity

A = area

Put the value into the formula

Q=6\times\pi\times(0.005)^2Q=6×π×(0.005)

2

Q=4.7\times10^{-4}\ m^3/sQ=4.7×10

−4

m

3

/s

Conversation:

Q=\dfrac{4.7\times10^{-4}\ m^3}{s}\times\dfrac{1000\ L}{1\ m^3}Q=

s

4.7×10

−4

m

3

×

1 m

3

1000 L

Q=0.47\ L/sQ=0.47 L/s

Hence, The flow speed , pressure and volume flow rate in the bathroom are 6 m/s , 3.3\times10^{5}\ Pa3.3×10

5

Pa and 0.47 L/s.yap

if it help you please mark brainless

Answer:

The outbreak of tornadoes that tore across the Gulf and the East Coast Tuesday and Wednesday was unusual for two reasons. For one thing, the severe weather encompassed a significant swath of the country. For another, winter is the least likely time for tornadic thunderstorms.

Explanation:

The outbreak of tornadoes that tore across the Gulf and the East Coast Tuesday and Wednesday was unusual for two reasons. For one thing, the severe weather encompassed a significant swath of the country. For another, winter is the least likely time for tornadic thunderstorms.

And yet tornadoes are an expected part of life in the United States—especially in the multi-state area known as Tornado Alley. (Florida, too, sees a disproportionately high number of tornadoes, because of its frequent thunderstorms.) The United States gets more tornadoes, by far, than any other place on the planet. It averages about 1,250 twisters a year. Canada, which sees about 100 tornadoes per year, is a “distant second,” according to the National Centers for Environmental Information.

Answer:

hope this helps you

..........

Answer:

v = 72.54 m/s

Explanation:

We have,

Length of a guitar string is 0.62 m

Frequency of a guitar string is 234 Hz

For guitar string,

[tex]L=2\lambda\\\\\lambda=\dfrac{L}{2}\\\\\lambda=\dfrac{0.62}{2}\\\\\lambda=0.31\ m[/tex]

The velocity of the wave in the string is given by :

[tex]v=f\lambda\\\\v=234\times 0.31\\\\v=72.54\ m/s[/tex]

So, the velocity of the waves in the string is 72.54 m/s.

Answer:

290.16

Explanation:

i got it right

Answer:

Coordination is the ability to use the senses together with body parts during movement.

This statement is true.

For example, dribbling/juggling a soccer ball. Using feet and eyes together is called feet-eye coordination.

Hope this helps!

:)