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
yanalaym [24]
3 years ago
11

I need help with this one pls, ty! ASAP

Chemistry
1 answer:
LuckyWell [14K]3 years ago
4 0

Answer:

Explanation:

1. A measure of how quickly velocity is changing is the acceleration

Acceleration is the rate of change of velocity with time. The rate at which a body is changing its velocity is known as the acceleration.

It is measured in the unit m/s²

2. Speed in a given direction is the velocity

Velocity is a vector quantity which measures the magnitude of motion in a specific direction. It is simply speed in a given direction.

When we say a motorcycle travels at the rate of 5m/s due east, we are describing the velocity of such body.

3. Force that resists moving one object against another is the friction

Friction is a force that opposes motion. It prevents a body from moving.

4. Measure of the pull of gravity on an object Weight

Weight is a measure of the amount of gravitational force on a body. It is mathematically expressed as;

         W = mg

W is the weight, m is the mass and g is the acceleration due to gravity

5 Tendency of an object to resist a change in motion is inertia

Inertia is the tendency of body to resist change in motion. It is the ability of a body to remain in a perpetual state of rest.

6 Size is the magnitude

You might be interested in
Calculate the wavelength for the transition from n = 4 to n = 2, and state the name given to the spectroscopic series to which t
finlep [7]

Answer:

The wavelength for the transition from n = 4 to n = 2 is<u> 486nm</u> and the name  name given to the spectroscopic series belongs to <u>The Balmer series.</u>

Explanation

lets calculate -

Rydberg equation-   \frac{1}{\pi } =R(\frac{1}{n_1^2} -\frac{1}{n_2^2})

where ,\pi is wavelength , R is Rydberg constant ( 1.097\times10^7), n_1 and n_2are the quantum numbers of the energy levels. (where n_1=2 , n_2=4)

Now putting the given values in the equation,

                \frac{1}{\pi }=1.097\times10^7\times(\frac{1}{2^2} -\frac{1}{4^2} )=2056875m^-^1

    Wavelength \pi =\frac{1}{2056875}

             =4.86\times10^-^7 = 486nm

<u>    Therefore , the wavelength is 486nm and it belongs to The Balmer series.</u>

8 0
3 years ago
Select the correct structure that
gogolik [260]

Answer:

C. Both

Explanation:

5 0
3 years ago
Read 2 more answers
In an energy diagram, the reactants are at a higher potential energy compared to the products. Which of the following best descr
mrs_skeptik [129]

Answer is (D) - It is exothermic and will have a negative enthalpy.


If the reactants are at a higher potential energy compared to the products, it means reactants have more energy than the products. That energy is released to the environment as heat. Due to the releasing of heat to the surrounding, the reaction is exothermic. Since the reaction is exothermic; the enthalpy of the reaction will be negative value.


3 0
4 years ago
4) Calculate the heat needed to melt 40.0 g of ice at 0°C?
Sav [38]
A lot of heat like a lot no cap it’s gonna he a lot
3 0
3 years ago
I need help with three questions plz help me out. If i don't past i won't progress onto the next grade.
8_murik_8 [283]
I can help I need the Qs
3 0
3 years ago
Other questions:
  • ¿Por qué se unen los átomos?
    12·2 answers
  • Which statement best describes why carbon can form a wide variety of organic compounds?
    12·2 answers
  • Given the formula for a compound:
    12·1 answer
  • How many grams of NaCl are contained in 0.50 L of a 1.20 M solution?
    8·1 answer
  • Which of the following are products of the light-dependent reactions of photosynthesis that are utilized in the light-independen
    13·1 answer
  • What type(s) of intermolecular forces are expected between PF2Cl3 molecules?a. dispersion.b. dipole-dipole.c. ion-ion.d. hydroge
    14·1 answer
  • Determine the number of atoms that are in 1.15 mol of Cl 2.
    6·1 answer
  • PLEASE if you see these people (they all seem to have the same profile picture) NOTIFY THE PERSON ASKING THE QUESTION THAT THIS
    11·1 answer
  • Help pleaseeeeeeeeee
    5·2 answers
  • The two factors that affect the magnitude of the force are
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!