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
Serggg [28]
3 years ago
12

Abby was riding her motorcycle on a freeway 480 kilometers north of her exit. She was riding south toward the exit at a constant

velocity. If it took her 2 hours to get one-quarter of the way to her exit, what was her velocity?
Chemistry
1 answer:
lorasvet [3.4K]3 years ago
7 0

60km/hr due south

Explanation:

Velocity problems are motion related. Velocity is the rate of change of displacement with time taken.

it is a vector quantity with both magnitude and direction delineated.

 Velocity = \frac{displacement}{time taken}

Given parameters:

 Time = 2hrs

 Distance = \frac{1}{4} x 480km = 120km

  Displacement = 120km south

 Input the values;

 Velocity = \frac{120}{2} = 60km/hr due south

learn more:

Velocity brainly.com/question/2263589

#learnwithBrainly

You might be interested in
HELP ASAP!! PLEASE !!
ZanzabumX [31]

Answer:

8,3, 7,7

Explanation:

6 0
2 years ago
Describe the cell cycle?
guajiro [1.7K]

Answer:

Its basically a series of events that take place in a cell. A cell spends most of its time in what is called inter phase, and during this time it grows, replicates its chromosomes, and prepares for cell division. Then after that The cell then leaves interphase, undergoes mitosis, and completes its division.

Explanation:

-Hailey: )

5 0
2 years ago
Solid lead IV oxide decomposes into solid lead and oxygen gas.
vredina [299]
The balanced equation for the decomposition of solid lead iv oxide is as follows: 2PbO2 = 2PbO + O2.
Lead IV oxide decompose to give lead ll oxide and oxygen. Lead iv oxide is thermally unstable and it usually decomposes into oxygen and lead ll oxide when heated. Lead ll oxide is more stable than lead lV oxide.
7 0
3 years ago
Small quantities of hydrogen can be prepared by the addition of hydrochloric acid to zinc. a sample of 195 ml of hydrogen was co
Vikentia [17]
Let's go over the given information. We have the volume, temperature and pressure. From the ideal gas equation, that's 4 out of 5 knowns. So, we actually don't need Pvap of water anymore. Assuming ideal gas, the solution is as follows:

PV=nRT
Solving for n,
n = PV/RT = (753 torr)(1 atm/760 torr)(195 mL)(1 L/1000 mL)/(0.0821 L·atm/mol·K)(25+273 K)
n = 7.897×10⁻³ mol H₂

The molar mass of H₂ is 2 g/mol.

Mass of H₂ = 7.897×10⁻³ mol * 2 g/mol = <em>0.016 g H₂</em>
5 0
3 years ago
Read 2 more answers
A substance that cannot be broken down into simpler substances by chemical or physical means is called a
sergiy2304 [10]
A substance that cant be broken down by cheamical or physical means is an Element.

Hope this helps
6 0
3 years ago
Read 2 more answers
Other questions:
  • Describe, in detail, nuclear fission and nuclear fusion. Include what happens in each reaction, the types of atoms involved, the
    9·1 answer
  • To support a child's self-esteem, you can make all of these statements, except
    10·1 answer
  • Which statement is TRUE
    12·2 answers
  • The following reaction was performed in a sealed vessel at 760 ∘C : H2(g)+I2(g)⇌2HI(g) Initially, only H2 and I2 were present at
    9·1 answer
  • THERE ARE FOUR SOLUTIONS: A, B, C, D. SOLUTION A YIELDS 3 PROTONS UPON IONIZATION, SOLUTION B IS AN ELECTRON PAIR DONOR, SOLUTIO
    9·1 answer
  • Consider hydrogen atom in an excited state of 3s1. What is the energy of its electron
    13·1 answer
  • HELP PLEASE
    9·2 answers
  • Calculate the density of a solid substance if a cube measuring 2.54 cm on one side has a mass of 108 g/cm3​
    10·1 answer
  • Calculate the energy of a photon emitted when an electron in a hydrogen atom undergoes a transition from =3 to =1.
    15·1 answer
  • What are the parts of a chromosome
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!