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
maria [59]
3 years ago
11

What was the average speed of the truck for this trip?

Chemistry
1 answer:
Goshia [24]3 years ago
8 0

Answer:

31.67 mph

Explanation:

To calculate the average speed of the truck, we must first obtain the total distance travelled by the truck followed by the total time taken for the truck to cover the distance travelled.

The following data were obtained from the question include:

Total distance) = 30 + 45 + 50 + 65 = 190 miles

Total time = 1 + 2 +1 +2 = 6 hours

Average speed =.?

Average speed = Total distance / Total time

Average speed = 190 /6

Average speed = 31.67 mph

Therefore, the average speed of the truck is 31.67 mph

You might be interested in
An increase in blood co2 levels leads to __________.
tatiyna

Answer:

Respiratory Acidosis

Explanation:

4 0
3 years ago
7. Which of the following elements is more electronegative than carbon? *
olasank [31]

Answer:

c. Cl

Explanation:

7 0
3 years ago
on dr v’s bookshelf there are 23 science textbooks each with an average of 31 chapters of each chapter contains 5 pages how many
olga55 [171]

Answer:

There are 3600 pages to 2 significant figures

Explanation:

Working only with the information given, we have that there are 23 books each with about 31 chapters.

This means that if 1 book has 31 chapter, the 23 science books will have

31 X 23 chapters =713 chapters in total.

If each chapter contains 5 pages, for the 713 chapters we will have a total of 713 X 5 pages = 3565 pages.

Rounding off the answer to 2 significant figures , we are looking to have only two non-zero figures in our answer. To do this, we count two numbers from the left. This will be numbers 3 and 5.

Next,  we check the net number after 5 to see if it is greater than 5 if it is, we will have to add the number (1 ) to the 5. This shows that we are approximating upwards, to account for the fact that that number has passed the middle point.

After this, we change the remaining two numbers (6 and 5) to zeroes.

This will give us 3600 pages.

8 0
3 years ago
Calculate the molar mass for HCN.<br> 0.2703 g/mol<br> 2.703 g/mol<br> 27.03 g/mol<br> 270.3 g/mol
elixir [45]

Answer:

27.03 g/mol

Explanation:

Molar Mass of HCN

Mass of Hydrogen : 1.008

Mass of Carbon: 12.01

Mass of Nitrogen: 14.01

Molar Mass of HCN =

1.008 + 12.01 + 14.01=

27.03 g/mol

7 0
3 years ago
Calculate the frequency required to eject electrons from gold with a work function of 8.76 x 10-19 J
Savatey [412]
hf=W+\frac{mv^{2}}{2}\\\\&#10;f=\frac{W+\frac{mv^{2}}{2}}{h}\\\\\&#10;&#10;W=8,76*10^{-19}J\\&#10;m=9,11*10^{-31}kg\\&#10;v=3*10^{8}\frac{m}{s}\\&#10;h=6,63*10^{-34}Js\\\\\\&#10;f=\frac{8,76*10^{-19}J+\frac{9,11*10^{-31}kg*(3*10^{8}\frac{m}{s})^{2}}{2}}{6,63*10^{-34}Js}=7,5*10^{19}Hz
5 0
3 years ago
Other questions:
  • I need help with this question. Thank you.
    11·1 answer
  • How many atoms of hydrogen are in 170 g of hydrogen peroxide (h2o2)?
    11·1 answer
  • A chemistry student needs 75.0ml of pentane for an experiment. by consulting the crc handbook of chemistry and physics, the stud
    5·1 answer
  • What is the molar mass of a compound if 25.0 g of the compound dissolved in 750. Ml gives a molarity of 0.290 m?
    13·1 answer
  • Three molecular or ionic compounds you commonly use
    12·1 answer
  • 1. How much magnesium oxide is produced if 12.1 g of magnesium reacts with 16 g of oxygen
    5·1 answer
  • If the length of a cube is 2.5 cm, the width is 2.5 cm, the height is 2.5 cm and the mass of the
    14·1 answer
  • Suppose that you take a sample of 500 g of ocean water and let the water evaporate. The mass of the remaining salts is 17 g. Wha
    7·1 answer
  • Which one of the following is not an agent of chemical weathering?
    12·1 answer
  • The electron configuration that belongs to the atom with the lowest first ionization energy is?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!