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
BaLLatris [955]
3 years ago
12

A car moves with an average speed of 45miles /hour. How long does the car take to travel 90miles?

Chemistry
2 answers:
storchak [24]3 years ago
3 0

Averqge speed of the car = 45 miles/hr, which means,

The car travels 45 miles in 1 hr.

Using unitary method,

The car travels 45 miles in 1 hr

The car would travel 1 mile in 1/45 hrs

The car would travel 90 miles in 1/45×90 hrs

So, calculating this,

1/45×90 = 2 hrs

Lemur [1.5K]3 years ago
3 0

Answer:

actually this is physics

d=s×t

∴45×90⇒4050km

You might be interested in
There are 4.184___<br> in a Joule of energy
Alinara [238K]

Answer: calories?

Explanation: but isn’t it 1 calorie = 4.184 joules of energy

4 0
3 years ago
Which of the following changes would improve the accuracy of the molar mass measurement carried out in this experiment:
aleksandrvk [35]
A. would not help and maybe make it harder to get accurate measurements.

b. would make more delta T which will improve its accuracy

c. will also increase delta T.
4 0
3 years ago
What is kind of property is denisty?
Virty [35]

Answer:

INTENSIVE PROPERTY OF MATTER

Explanation:

DENSITY IS AN INTENSIVE PROPERTY OF MATTER THAT ILLUSTRATES HOW MUCH MASS A SUBSTANCE HAS IN A GIVEN AMOUNT OF VALUE,

7 0
2 years ago
Which metals have similar chemical properties? Check all that apply. barium beryllium rubidium radium titanium calcium platinum
forsale [732]

beryllium & calcium are the two in the same column or family

6 0
3 years ago
Read 2 more answers
Can anyone help with 5 through 8? Please :(
Aleksandr [31]

Answer:

The answer to your question is below

Explanation:

5)        Fe₂O₃(s)   +  3H₂O   ⇒    2Fe(OH)₃ (ac)        Synthesis reaction

6)        2C₄H₁₀(g)  + 13O₂(g)  ⇒   8CO₂ (g)  +  10H₂O   Combustion reaction

7)         2NO₂ (g)  ⇒   2O₂ (g)  +  N₂ (g)                     Decomposition reaction

8)         H₃P (g) +  2O₂ (g)  ⇒    PO (g)  +   3H₂O  Single replacement reaction

4 0
3 years ago
Other questions:
  • What are some catchy volcano titles?<br> I need it asap I'm making a 4th grade book
    5·1 answer
  • The mass of a block is 12 grams and the volume is 6 ml. Calculate the density of the
    15·1 answer
  • why does ice float on water? the temperature of ice is lower than the temperature of water. the temperature of water and ice are
    7·2 answers
  • Which of these are true for a hypothesis? (You can pick more than one)
    13·1 answer
  • It has been suggested that hydrogen gas obtained by the decomposition of water might be a substitute for natural gas (principall
    13·1 answer
  • Que significa arte m m k,
    9·1 answer
  • Which of the following is NOT needed for photosynthesis to take place?
    8·2 answers
  • Question 18
    9·1 answer
  • Elaine's teacher gave her two cubes and asked her to record as many observations as possible. The data table of her observations
    10·1 answer
  • Metric conversions.<br> Please help ASAP.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!