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
34kurt
2 years ago
8

The speed of Train A is 88 km/hr, and the speed of Train B is 96 km/hr. Based on this information, which of the following statem

ents
is true?
ОА.
Train A has more kinetic energy than Train B.
OB. Neither train has any kinetic energy.
Ос.
The trains have the same kinetic energy.
OD
Train B has more kinetic energy than Train A
Chemistry
1 answer:
denis-greek [22]2 years ago
7 0

Answer:

C i took that test and got 96

Explanation:

You might be interested in
Can you give me more explanation in the picture?
PolarNik [594]
Read the paper more carefully if you don't understand it
5 0
2 years ago
Which of these pathogens can be killed by antibiotics?
Alisiya [41]

Answer:

it's c.

Explanation:

hope this helps

5 0
3 years ago
What are two ways in which you can increase the potential energy of a marble on ramp
zlopas [31]

Answer:

You can make the ramp really steep and hold the marble at the top of it

Explanation:

6 0
2 years ago
Calculate the wavelength of light with a frequency of 1.89 x 1018 Hz.
Charra [1.4K]
Which sentence from "Black Hole Beginnings" contains a cause-and-effect relationship?
More matter mounts up on the outside, increasing the pressure on the inside.
Instead it is a dramatic melding, or blending, of atoms, called nuclear fusion.
Each atom has its own tiny center, or nucleus.
Surrounding each nucleus is an electrical force field..
6 0
3 years ago
When a lead acid car battery is recharged by the alternator, it acts essentially as an electrolytic cell in which solid lead(II)
katen-ka-za [31]

Answer:

3.81 g Pb

Explanation:

When a lead acid car battery is recharged, the following half-reactions take place:

Cathode: PbSO₄(s) + H⁺ (aq) + 2e⁻ → Pb(s) + HSO₄⁻(aq)  

Anode: PbSO₄(s) + 2 H₂O(l) → PbO₂(s) + HSO₄⁻(aq) + 3H⁺ (aq) + 2e⁻

We can establish the following relations:

  • 1 A = 1 c/s
  • 1 mole of Pb(s) is deposited when 2 moles of e⁻ circulate.
  • The molar mass of Pb is 207.2 g/mol
  • 1 mol of e⁻ has a charge of 96468 c (Faraday's constant)

Suppose a current of 96.0A is fed into a car battery for 37.0 seconds. The mass of lead deposited is:

37.0s.\frac{96.0c}{s} .\frac{1mole^{-} }{96468c} .\frac{1molPb}{2mole^{-} } .\frac{207.2gPb}{1molPb} =3.81gPb

6 0
3 years ago
Other questions:
  • Help Please earth science
    9·1 answer
  • What qualities make one theory "better" than another in the scientific community?
    6·1 answer
  • Changing the pressure of a system has the highest effect on a substance in which phase?
    13·1 answer
  • What mineral is not a structural component of bone?
    13·1 answer
  • What reagent is <br>used to test for starch<br>​
    8·1 answer
  • Is bread a molecule or a compound?
    8·2 answers
  • PLEASE HELP ME!!
    11·1 answer
  • A 25.0 mL sample of HCI reacted with 20.0 mL of 2.00 M NaOH. What is the molarity of the HCI?
    15·1 answer
  • According to the usda food standards and labeling, vinegar must contain at least 4% (m/m) acetic acid. does your vinegar sample
    14·1 answer
  • What is the difference between accurate data and reproducible data?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!