Which is the temperature that Fahrenheit and Celsius thermometers would
read as the same number?
A. -40° c
B. -273° c
c. 100°C
D. 0° C

Answer:

The scale read 1280 N.

Explanation:

Given that,

The mass of a person, m = 80 kg

We need to find the scale reading when the elevator is moving upward at 6.2 m/s².

We know that, when an elevator moves up, the reading on the scale is given by :

N-mg=ma

N=m(a+g)

Put all the values,

N = 80(6.2+9.8)

= 80(16)

= 1280 N

Hence, the scale read 1280 N.

Answer:

the answer is c. producers, detrivores

Answer:

1. Is a different pitch, has a different speed

2. is brighter or dimmer, has a different energy

Explanation:

Answer:

4 CM

Explanation:

The dotted car means thats were it started, the car to the right is were it stops. count the lines from the start of the dotted car to the start of the shaded car. hope that helped!

Answer:

I₁ = 5.45 A

I₂ = 9.1 A

I₃ = 3.27 A

Explanation:

Electrical power is defined as the product of current and displacement.

[tex]P = VI\\\\I = \frac{P}{V}[/tex]

where,

P = Power of Device

I = current passing through the device

V = voltage across the device = 220 V

FOR P₁ = 1200 W

[tex]I_1 = \frac{1200\ W}{220\ V}[/tex]

I₁ = 5.45 A

FOR P₂ = 2000 W

[tex]I_2 = \frac{2000\ W}{220\ V}[/tex]

I₂ = 9.1 A

FOR P₃ = 720 W

[tex]I_1 = \frac{720\ W}{220\ V}[/tex]

I₃ = 3.27 A

Answer:

105

Explanation:

Trust brother

Answer:

an earthquake

Explanation:

the energy is being released

Explanation:

p = mv ---> let v --> 2v (velocity is doubled) then

p' = m(2v)

= 2(mv)

= 2p

so the momentum also doubled

That is correct

There is not answer choices but I think its true

Are you good with compare and contrasting?

If so, look at my recent question please

Answer:

[tex]F_1=540*10^{-12} N[/tex]

[tex]F_2=-1080 * 10^{-12} N[/tex]

[tex]F_3=-2268 * 10^{-12} N[/tex]

Explanation:

From the question we are told that

Charge on objects

[tex]Q_1=4.0 * 10^6 C[/tex]

[tex]Q_2= 6.0 * 10^6 C[/tex]

[tex]Q_3= +9.0 * 10^6 C[/tex]

Distance apart [tex]d=0.50m[/tex]

Generally the equation for Force on individual Charge is mathematically given by

For Q_1

[tex]F_1=\frac{d*Q_1Q_2}{r^2}+\frac{ d*Q_1Q_3}{4r^2}[/tex]

[tex]F_1=\frac{k*(4.0 * 10^6 C)(6.0 * 10^6 C)}{0.5^2}+\frac{ d*(4.0 * 10^6 C)( +9.0 * 10^6 C)}{4(0.5)^2}[/tex]

[tex]F_1=540*10^{-12}[/tex]

For Q_2

[tex]F_2= \frac{k}{0.5^2[Q_1 + Q_3]Q_2}[/tex]

[tex]F_2= \frac{k}{0.5^2[4.0 * 10^6 C + 9.0 * 10^6 ]*6.0 * 10^6 C}[/tex]

[tex]F_2=-1080 * 10^{-12} N[/tex]

For Q_3

[tex]F_3=\frac{kQ_3}{r^2[Q_1/4+Q_2}[/tex]

[tex]F_3=\frac{k(+9.0 x 10^6 C)}{(0.5)^2[(4.0 x 10^6 )/4+(6.0 x 10^6 C)}[/tex]

[tex]F_3=-2268 * 10^{-12} N[/tex]

Answer:

(a) k = 80 N/m   (b) x = 75 cm

Explanation:

The question says that, "A spring is elongated 30 centimeters when we exert a force of 24 N on it a) calculate the value of the spring constant b) calculate the elongation of the spring when applying a force of 60 N"

Given that,

Force exerted on the spring, F = 24 N

Elongation in the spring, k = 30 cm =0.3 m

(a) We know that, the force on the spring is given by :

F = kx

Where

k is spring constant

So,

[tex]k=\dfrac{F}{x}\\\\k=\dfrac{24}{0.3}\\\\k=80\ N/m[/tex]

(b) When F = 60 N,

[tex]x=\dfrac{F}{k}\\\\x=\dfrac{60}{80}\\\\x=0.75\ m\\\\x=75\ cm[/tex]

Hence, this is the required solution.

Answer:

This is to optimize storage and transport.

Explanation:

Answer:

44.44 seconds

Explanation:

You just do 1200/27

Answer:

The coastal zone is not a stable and constant environment, but a dynamic place that can change rapidly in response to natural processes such as seasonal weather patterns. Waves, winds, currents, tides and storms are the major forces on the coast.

Explanation:

Answer:

the nucleus of the atom you have conserved almost all its mass in a very small volume

Explanation:

In Rutherforf's experiment, most alpha particles had few deflections, eg a few of them were deflected at small angles, a much smaller number deflected at large angles, and very few were deflected.

The explanation that I found for this is that if all the mass and the positive charge of the atom is in a small volume, they could specifically calculate this the relationship of the volumes,

          V_atom / V_nucleo = 10⁴

Therefore, the phrase that explains the observing phenomenon is that the nucleus of the atom has concentrated almost all its mass, very small emolument and in that same volume is all the positive charge of the atoms.

In summary, the phrase that describes the process is:

  the nucleus of the atom you have conserved almost all its mass in a very small volume

Answer:

4.5 m/s

Explanation:

13.5 x 1/3

Answer: The motion of the object will remain the same

Explanation:

Answer:

"h" signifies Planck's constant

Explanation:

In the equation energy E = h X v

The "h" there signifies Planck's constant

Planck's constant is a value, that shows the rate at which the energy of a photon increases/decreases, as the frequency of its electromagnetic wave changes.

It was named after Max Planck who discovered this unique relationship between the energy of a light wave and its frequency.

Planck's constant, "h" is usually expressed in Joules second

Planck's constant = [tex]6.62607015 \times 10^{-34} J.s[/tex]

Answer:

Radioactive decay: is the process by which an unstable atomic nucleus loses energy by radiation.

Half-life: in radioactivity, the interval of time required for one-half of the atomic nuclei of a radioactive sample to decay (change spontaneously into other nuclear species by emitting particles and energy), or, equivalently, the time interval required for the number of disintegrations per second of a radioactive material to decrease by one-half.

Radiometric dating: is a method used to date rocks and other objects based on the known decay rate of radioactive isotopes.

Answer:

try to stay open, dont just stand there, u gotta keep moving around. maybe set a screen for ur teamate so they can get to the basket quickly, but regardless, stay open and stay moving

Explanation:

u talking about basketball right?

Answer:A

Explanation:I believe the correct answer would be they join north pole to south pole. The direction of these lines always goes from the direction of north to south pole. These lines forms loops in order to favor the way which requires or has less resistance.

They point away from the north pole and towards the south pole, is the statement correctly describing magnetic field lines around a bar magnet.

A bar magnet is a rectangular section of an item that has permanent magnetic qualities and is made of iron, steel, or any other ferromagnetic material or ferromagnetic composite.

It has two poles, one north, and one south, and when hanging freely, the magnet aligns itself such that the north pole faces the earth's magnetic north pole.

They point away from the north pole and towards the south pole, the statement correctly describes magnetic field lines around a bar magnet.

Hence statement B correctly describes magnetic field lines around a bar magnet.

To learn more about the bar magnet refer to the link;

https://brainly.com/question/708941

Answer:

A) but be sure and read the answer.

Explanation:

If the object does not move at all, (that's an important restriction) the net force = 0. That being so, the acceleration must be 0 as well. But there is no law saying that there cannot be a constant motion and that's why the restriction is important.

Answer:

No and yes it's like a 30%or 20%

Explanation:

"researchers say that there is no proof that dimples are inherited."

meaning that if the mom or dad had dimples it might have a chance or no since a dominant trait not a recessive trait

Answer:D

Explanation:

The force of gravity from Mars will pull on the space probe the same amount no matter how far away it is​, so option D is correct.

All material objects in the universe are subject to the force of gravity, also known as gravitation. The force of gravity tends to draw any two non-zero mass objects or particles toward one another. Subatomic particles and galaxy clusters are both affected by gravity, as are objects of all sizes.

Due to the law of gravity, or gravitation, which draws all objects with mass in its vicinity toward it, Mars' gravitation is a natural occurrence. Due to the planet's lesser mass, its gravity is weaker than that of Earth. On Mars, the gravitational acceleration fluctuates, but on average it is 3.72076 m/ s² (or around 38% of Earth's).

Therefore, the force of gravity from Mars will pull on the space probe the same amount no matter how far away it is​.

To know more about gravity:

https://brainly.com/question/9722860

#SPJ2

Answer:  

At point 3, the reactants and products reach their equilibrium concentrations.

At point 1 the reaction proceeds mostly in the forward direction.

Explanation:

Answer:

The value of R₂ is equal to 24.75 ohms.

Explanation:

Given that,

Two resistors, R₁ and R₂, are  connected in parallel.

The equivalent resistance is 14.5 ohms

We need to find the value of R₂.

When two resistors are connected in parallel. The equivalent resistance is given by :

[tex]\dfrac{1}{R_{eq}}=\dfrac{1}{R_1}+\dfrac{1}{R_2}\\\\\dfrac{1}{14.5}=\dfrac{1}{35}+\dfrac{1}{R_2}\\\\\dfrac{1}{R_2}=\dfrac{1}{14.5}-\dfrac{1}{35}\\\\\dfrac{1}{R_2}=0.04039\\\\R_2=\dfrac{1}{0.04039}\\\\R_2=24.75\ \Omega[/tex]

So, the value of R₂ is equal to 24.75 ohms.

Answer:

B, C, F

Explanation:

B: Sugar can be separated from the water by evaporating the water. This will leave large chunks of sugar.

C: Sugar gets spread out among the water.

F: Sugar water is a homogeneous mixture. Can't see the individual components because of the dissolving.

Hoped this helped! :)

Answer:

A: For each 1 degree Celsius that temperature decreases, the speed of sound decreases by 0.6 m/s. So sound travels through dry, -20 °C air at a speed of 319 m/s

Explanation:

Answer: An educated guess based on observations

Explanation: A scientific theory is a well-substantiated explanation of some aspect of the natural world, based on a body of facts that have been repeatedly confirmed through observation and experiment. Such fact-supported theories are not "guesses" but reliable accounts of the real world.

Hope This Helps!

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