1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Vladimir79 [104]
3 years ago
7

Which of the following is a scalar quantity?

Physics
1 answer:
schepotkina [342]3 years ago
5 0

Answer:

B. Time

Explanation:

You might be interested in
Determine the empirical formula for a compound that is 36.86% n and 63.14% o by mass.
olga2289 [7]

Answer:

NO_{1.499}

Explanation:

Let assume that 100 kg of the compound is tested. The quantity of kilomoles for each element are, respectively:

n_{N} = \frac{36.86\,kg}{14.006\,\frac{kg}{kmol} }

n_{N} = 2.632\,kmol

n_{O} = \frac{63.14\,kg}{15.999\,\frac{kg}{kmol} }

n_{O} = 3.946\,kmol

Ratio of kilomoles oxygen to kilomole nitrogen is:

n^{*} = \frac{3.946\,kmol}{2.632\,kmol}

n^{*}= 1.499

It means that exists 1.499 kilomole oxygen for each kilomole nitrogen.

The empirical formula for the compound is:

NO_{1.499}

8 0
4 years ago
Read 2 more answers
Which statement about stage 3 NREM is accurate?
cestrela7 [59]

Answer:

hope

that helps

Explanation:

D. The sleeper's heart rate, blood pressure, and breathing rate drop to their lowest levels.

8 0
3 years ago
PLEASE ANSWER ASAP
Mekhanik [1.2K]

Answer:

yes h h jj h v gu i kj

Explanation:

jjejejejejj

8 0
3 years ago
I’m struggling... please help
Phantasy [73]

Answer:

M. A change that causes the gene to increase the amount of lactase ir produces will increase a person's ability to break down lactose

Explanation:

Lactose is a sugar found in dairy products. Humans require an enzyme, called lactase, to break down the sugar in the body. This enzyme is produced by the lactase gene.

Some people have some variation in their gene that means they do not produce very much lactase. This means they do not produce sufficient amount of the enzyme to break down the sugar lactose found in milk. This causes them to feel ill and get abdominal pain when they eat dairy, because their body can't break down the sugar.

Therefore, a change in the gene that causes it to produce more lactase will make people more able to consume lactase. A change that decreases the amount of lactase enzyme will have the opposite effect.

The source of protein and minerals found in dairy are not processed by lactase, so R is not correct.

4 0
4 years ago
Describe wha scientists can learn about the past by studying fossils
inna [77]
What humans looked like and tools they used and the animals that have been alive through the centuries.
3 0
3 years ago
Other questions:
  • A rock is thrown straight upward off the edge of a balcony that is 5 m above the ground. The rock rises 10 m, then falls all the
    7·1 answer
  • Unlike images produced by a convex spherical mirror, images produced by concave spherical mirrors
    5·2 answers
  • a total 54.0 joules of heat are absorbed as 58.3 g of lead is heated from 12.0 to 42.0. From these data what is the specific hea
    13·2 answers
  • 7 types of electromagnetic waves from lowest to highest frequency
    8·1 answer
  • 29. Use the figure to determine in what direction the north magnetic pole of the compass will point. what type of magnetic pole
    6·1 answer
  • Do u think the benefits of nuclear energy outweigh the dangers
    8·1 answer
  • Hydrogen atoms are placed in an external magnetic field. The protons can make transitions between states in which the nuclear sp
    13·1 answer
  • A runner traveling with an initial velocity of 1.1 m/s accelerates at a constant rate of 0.8 m/s2fora time of 2.0 s.(a).What is
    13·1 answer
  • A motor has a voltage of 230V and a current of 0.5A. Calculate the resistance.​
    15·1 answer
  • If there is no change in the velocity of the object then it is known to be in ______
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!