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
xeze [42]
3 years ago
13

Two people must have the same speed and velocity if A) they are walking toward each other at 2 m/s. B) they are walking away fro

m each other at 2 m/s. C) they are jogging side by side at 5 m/s. D) they are jogging to two different destinations.
Chemistry
2 answers:
nordsb [41]3 years ago
6 0

Answer: The correct option is C.

Explanation:

Speed is defined as the distance traveled per unit time. It is a scalar quantity as it can be described by the magnitude alone.

Velocity is defined as the distance per unit time in a given direction. It is a vector quantity as both magnitude and direction are required to describe it.

For two people to have same speed and velocity, they both should have same magnitude and should move in the same direction.

By this, the correct option will be C.

Hitman42 [59]3 years ago
4 0
C
is the answer
ur welcome


You might be interested in
Material use make car tyres and chewing gum?
Ulleksa [173]

Answer:

Rubber

Rubber

Make me brainlyist

3 0
3 years ago
Describe the valence electrons in nitrogen and how it could bond to other atoms.
Trava [24]

Answer:

Each nitrogen molecule consists of two atoms of nitrogen that are bonded by a triple covalent bond. This is a direct consequence of the fact that each nitrogen atom has 5 valence electrons. Each atom can thus complete its octet by sharing three electrons.

Explanation:

Sorry i had to look it up i didn't know this answer

Please mark brainliest:)

6 0
3 years ago
A student sees a change in mass in the lab when mixing two chemicals what is a possible explanation?
Hitman42 [59]

Answer:

The mixing of two chemicals may result in the production of a gas which is lost to the air. This will reduce the mass of the chemical mixture, because mass is being lost in a gaseous form.

4 0
2 years ago
g Five calcite, CaCO3 (MW 100.085 g/mol), samples of equal mass have a total mass of 12.3±0.1 g. What is the absolute uncertaint
diamong [38]

Answer:

The value  is   L  =  0.985 \pm 0.00801 \  g

Explanation:

From the question we are told that

  The  molar mass of CaCO_3 is  MW  =  100.085 \  g/mol

   The  total mass is  m_g  = 12.3 \ g

   The uncertainty of the total mass is \Delta g  = 0.1

Generally the molar weight of calcium is M_c  =  40 g/mol

 The percentage of calcium in calcite is mathematically represented as

          C =  \frac{40.07}{100.085} * 100

          C =  40.03 \%

Generally the mass of each sample is mathematically represented as

     m=  \frac{m_g}{5}

     m=  \frac{12.3}{5}

     m= 2.46 \  g

Generally mass of calcium present in a single sample is mathematically represented as

        m_c = 2.46 *  \frac{40.04}{100}

       m_c = 0.985 \  g

The  uncertainty of  mass of a single sample is mathematically represented as

      k  =  \frac{\Delta g }{5}

        k  =  \frac{0.1 }{5}

       k  =  0.02\  g

The  uncertainty of  mass of calcium in a single sample is mathematically represent

         G  =  \frac{0.02 *  40.04}{ 100}

          G  =  0.00801 \  g

Generally the average mass of calcium in each sample is  

          L  =  0.985 \pm 0.00801

6 0
2 years ago
In this model of a molecule of ammonia, NH3, how many covalent bonds are represented?
Verdich [7]
I think the answer is three but i can't be sure.
4 0
2 years ago
Other questions:
  • Which of the following solutions is a good buffer system? Which of the following solutions is a good buffer system? a solution t
    6·1 answer
  • A common radio wavelength observed coming from astronomical objects is 21 cm. What temperature is associated with this radiation
    9·1 answer
  • ¿Cuál(es) de las siguientes propiedades aumentan a más Z en un grupo?
    5·1 answer
  • How many grams of NaNO3 are there in 625.0 mL of a .325 M NaNO3 solution
    10·2 answers
  • Nucleosynthesis began when _____ and ended when _____
    9·1 answer
  • Calculate the density of oxygen,
    6·1 answer
  • I need to know what the summary of matter is helpppppp!!!!
    12·1 answer
  • If I have 4 moles of a gas at a pressure of 5.6 atm and a volume of 12 liters, what is the temperature? (205)
    14·1 answer
  • What do the results tell you about your hypothesis(es)? How do the data support your claim above?
    7·1 answer
  • Suppose you found an unknown substance in a laboratory. It has the formula H2O2 written on the bottle. Is it water? How do you k
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!