Which of the following distances is the longest?a. 0.006 kilometersb. 0.3 decimeters

c. 820 meters

d. 20,000 millimeters

Answers

Answer 1

Answer: 820 meters is the longest

Related Questions

Why is chlorine bonded by a single covalent bond, but Oxygen bonded by a double covalent bond?
What happens to the mass of an object when it is cooled?
Luke investigated the heating of water
To dry the brakes, drive slowly in __________ and apply light pressure on your brake pedal.
The potential energy is calculated as ____ (use g=10m/s^2 for your calculating)

two objects were lifted by machine one object had a massive 2 kg it was lifted at a speed of 2 m/s the other had a massive 4 kg and was lifted at a rate of three meters per second which object has more kinetic energy

Answers

Kinetic energy =(1/2) (mass) (speed²)

First object: KE = (1/2) (2 kg) (2m/s)² = 4 joules during the lift.

Second object: KE = (1/2) (4kg) (3 m/s)² = 18 joules during the lift.

The second object has more kinetic energy while it's being lifted
than the first object has while it's being lifted. Once they reach their
final heights and stop, neither object has any kinetic energy.

Explain what happens when you vigorously rub your wool socks on a carpeted floor,touch a metal doorknob and get shocked

Answers

When you are rubbing the wool socks on the carpet, you are transferring electrons. When you touch the metal doorknobs, the electron levels are then going back to normal. The rush of electrons causes the shock.

Final answer:

When you rub your wool socks on a carpeted floor and then touch a metal doorknob, you get shocked. This happens due to the transfer of electrons from the carpet to the socks, resulting in a buildup of negative charge which is discharged when you touch the grounded doorknob.

Explanation:

When you vigorously rub your wool socks on a carpeted floor, you transfer electrons from the carpet to the socks through friction. This creates a buildup of negative charge on the socks. When you then touch a metal doorknob, which is grounded, the excess electrons on your socks quickly flow to the doorknob, resulting in a sudden discharge of static electricity and a shock.

Learn more about Static electricity here:

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Which one of the following temperatures is equal to 5°C? A. 465 K
B. 0 K
C. 41 K
D. 278 K

Answers

Answer : The correct option is, (D) 278 K

Explanation :

We are given temperature $5^oC$ .

Now the conversion factor used for the temperature is,

$K=^oC+273$

where, K is kelvin and $^oC$ is Celsius.

Now put the value of temperature, we get

$K=5^oC+273=278K$

Therefore, the temperature 278 K is equal to the $5^oC$

The charge on a gamma ray is ____.
a. 2
b. 1
c. 0
d. 2

Answers

So we want to know what charge do gamma particles have. Gamma particles are high energy electromagnetic radiation or in other words, gammy rays are high energy photons. Photons have no electrical charge so the charge of gamma rays is equal to zero. The correct answer is c. 0

Answer:

1) An unstable nucleus

c. emits energy when it decays

2)The charge on gamma ray is

c. 0

3) what particle is emitted in alpha radiation?

c. helium nucleus

4) The least penetrating form of radiation is

c. Alpha radiation

5) What is the change in atomic number when an atom emits a BETA particle?

D. increases by 1

- There you go loves :)

A mole or fraction of a mole represents a _______number of atoms or molecules.a. specific
b. nonspecific

Can I get some help matching these from the left to the right?

1) increased surface area concentration decreases around solute
2) like polarity increases rate rate proportional to K.E.
3) temperature matching solvent and solute
4) stirring finely divided solute

Answers

A mole or fraction of a mole represents a nonspecific number of atoms or molecules. The answer is letter A.

The correct answer is number 2, like polarity increases rate rate proportional to K.E.

*PLEASE HURRY ITS FOR A QUIZ*A motorcycle and rider, having a total mass of 875 kg, are moving with a velocity of 15 m/s due east. What is the total momentum of the rider and cycle?

A. 58 kg.m/s east

B. 60 kg.m/s east

C. 13.3 kg.m/s east

D. 13,125 kg.m/s east