What describes a change in velocity?

Answers

Answer 1

Answer: Acceleration can be described as changes in speed, changes in direction, or changes in both. Acceleration is a vector.

Answer 2

Answer:

Velocity is the displacement made per unit of time.

If direction or speed of the object change it causes change in velocity.

Acceleration is the term used for measuring the change of velocity. Acceleration is the change of velocity per unit of time.

Related Questions

A 0.100 M solution of K2SO4 would contain the same total ion concentration as which of the following solutions?0.0800 M Na2CO3 0.100 M NaCl 0.0750 M Na3PO4 0.0500 M NaOH
A balloon that had a volume of 3.50 L at 25.0°C is placed in a hot room at 40.0°C. If the pressure remains constant at 1.00 atm, what is the new volume of the balloon in the hot room?
A brick measures 25 cm by 12 cm by 13 cm. What is the volume of the brick in cm3? How many millilitters of water would this brick displace?
In a laboratory, a student makes a solution by completely dissolving 80.0 grams of KNO3(s) in 100.0 grams of hot water. The resulting solution has a temperature of 60.°C. The room temperature in the laboratory is 22°C.Classify, in terms of saturation, the type of solution made by the student.
When 25.0 mL of sulfuric acid solution was completely neutralized in a titration with 0.05 M NaOH solution, it took 18.3 mL of the NaOH(aq) to complete the job. The reaction is:NaOH(aq) + H2SO4(aq) → Na2SO4(aq) + H2O(l)What was the molarity of the sulfuric acid solution?

What is sublimation?

Answers

Sublimation is the transition from solid to gaseous.

hope this helps!

Solidsto gases without entering liquid state

The leading cause for dementia is Alzheimer's disease.
True
False

Answers

True.

Dementia's main cause is Alzheimer's disease (50%-70% of cases). You can find it in the DSM-5 as Major Neurocognitive Disorder due to Alzheimer's Disease.

A common stain remover is sold in concentrated form as 3M sodium hypochlorite (NaOCl). You need to create 400 milliliters of a 0.5M solution of sodium hypochlorite to fill a spray bottle. What volume of 3M sodium hypochlorite is needed?15.0 mL

66.7 mL

133 mL

167 mL

Answers

To solve this we use the equation,

M1V1 = M2V2

where M1 is the concentration of the stocksolution, V1 is the volume of the stock solution, M2 is the concentration ofthe new solution and V2 is its volume.

3 M x V1 = 0.50 M x .400 L

V1 = 0.07 L or 66.67 mL of the 3M sodium hypochlorite solution

The correct answer is the second option given.

Answer:

V2 = 66.67mL

Explanation:

Hello! To calculate this we have to take into account the equation that relates two substances:

M1 * V1 = M2 * V2

We have the concentration and volume of a substance and the concentration of the second. We have to find out the volume.

M1 = 0.5M

V1 = 400mL

M2 = 3M

V2 = (M1 * V1) / M2

V2 = (0.5M * 400mL) / 3M

V2 = 66.67mL

Select all that apply. Which statements correspond to cellular respiration? O 2 is pumped in and forces CO 2 out. CO 2 diffuses passively out of the cell. CO 2 must be pumped out of the cell. CO 2 diffuses passively into the cell. O 2 diffuses passively when converted to CO 2. O 2 diffuses passively when produced inside the cell.

Answers

Answer:

The correct answer is CO2 diffuses passively out of the cell.

Explanation:

Carbon dioxide is one of the end product of cellular metabolism.CO2 is produced as waste material inside the body after cellular respiration.

Carbon dioxide is transported out from the body by passive diffusion process which helps the CO2 gas to move along the concentration gradient from high concentration region(body) to the low concentration region(atmosphere).

Thus CO2 ia being eliminated from our body.

According to the Pauli exclusion principle, when can two electrons occupy the same orbital?

Answers

Knowing that a no orbital can accommodate more than two electrons,we can predict the maximum number of electrons in each layer or sub-layer ,It is possible when :

* Only two electrons can be assigned to an s orbital.

* three orbitals in a sub-layer p can accommodate two electrons, this sublayer can accommodate a maximum of six electrons.

* The five d orbitals of a sub-layer can accommodate a total of ten electrons.

hope this helps!

What is the mass number of isotopes of tin that has 66 neutrons and 50 protons

Answers

Answer:

116

Explanation:

neutrons = mass number - proton number

66 = mass number - 50

add 50 on both sides

66 + 50 = 116

so the mass number is 116

Other Questions

Which type of attraction can be used to explain the high boiling point of H2O?1. ionic bonding2. hydrogen bonding3. polar covalent bonding4. nonpolar covalent bonding

Given its position on the periodic table, the element sulfur (S) is classified as aA. metal. B. metalloid. C. nonmetal. D. transition metal.

For any given reaction, which of the following will speed up the reaction rate? a)increase the temperature b)add a catalyst c)increase the surface area d)All of the choices are correct. e)None of the choices are correct.

What kind of bond would a metal and a nonmetal typically make?A. An Ionic bond B. A Metallic bond C. A Double bond D. A Covalent bond