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
lana66690 [7]
3 years ago
9

If your front lawn is 15.0 feet wide and 20.0 feet long, and each square foot of lawn accumulates 1150 new snow flakes every min

ute, how much snow (in kilograms) accumulates on your lawn per hour? Assume an average snow flake has a mass of 2.20 mg.
Chemistry
1 answer:
svlad2 [7]3 years ago
4 0
First, we calculate the total are:
Area = 15 x 20
Area = 300 sq ft

Snowflakes accumulated per minute = 1150 x 300
Snowflakes per minute = 345,000 snowflakes per minute

Snowflakes per hour = 345,000 x 60
Snowflakes per hour = 20,700,000
Snowflakes per hour = 20.7 x 10⁶

Mass of one snowflake = 2.2 mg
Mass of one snowflake = 2.2 x 10⁻³ g
Mass of one snowflake = 2.2 x 10⁻⁶ kg

Mass of snow = 20.7 x 10⁶ x 2.2 x 10⁻⁶
Mass of snow = 45.54 kg per hour
You might be interested in
What is the name of the following compound? A line-angle formula shows a ring with six vertices and a circle inscribed. A Cl ato
ozzi

Answer: Option C. p-dichlorobenzene and 1,4-dichlorobenzene.

Explanation:

A line-angle formula with six vertices and a circle inscribed corresponds to the compound known as benzene.

Further, according to the IUPAC standards for naming benzene derivatives, you must first number the position of the substituent. In this case, the substituents (chloros) are located at the positions 1 and 4; also, for the benzene derivatives when they have 2 substituents and the positions are 1 and 4, this configuration is known as <em>para </em>or <em>p </em>configuration.

Additionally, this compound has 2 substituents (chloros) so you have to indicate this number (di).

Therefore, the correct answer is C. p-dichlorobenzene and 1,4-dichlorobenzene.

4 0
3 years ago
90.00 ml of 0.25 M calcium hydroxide are required to titrate 100.00 ml of hydrochloric acid. What is the molarity of the HCI?
bezimeni [28]

Answer:

50000mm u add subtract multiply divide

Explanation:

4 0
3 years ago
Research how different fossil fuels compare in terms of the amount of carbon dioxide released per kWh of energy. How much carbon
pshichka [43]

Answer:

About 19.64 pounds of carbon dioxide are produced from burning a gallon of gasoline. On the other hand, 22.38 pounds of carbon dioxide are produced from burning a gallon of diesel. So, different fossil fuels will give different amounts of carbon dioxide to be released.

Explanation:

5 0
3 years ago
39. Consider the following molecules:
sweet [91]
I) cc14
ii) h20
iii) i’m not sure

not fully sure but hope this helps!
5 0
3 years ago
Exploring the Second Law
san4es73 [151]

Answer:

(a) The coefficient of performance of an irreversible refrigeration cycle is always less than the coefficient of performance of a reversible refrigeration cycle when both exchange energy by heat transfer with the same two reservoirs.

Explanation:

According to the  Kelvin–Planck statement of the second law of thermodynamics ,it is not possible to construct a device which operates in cycle and does not produce effect on the environment than the production of work.

We know that

Coefficient of performance is the ratio of desired effect to the work input in a cycle.

Given all option is correct but most appropriate option is a.

So the option a is correct

(a) The coefficient of performance of an irreversible refrigeration cycle is always less than the coefficient of performance of a reversible refrigeration cycle when both exchange energy by heat transfer with the same two reservoirs.

5 0
3 years ago
Other questions:
  • Given the equation representing a system at equilibrium N2(g)
    13·1 answer
  • Food cooked slowly and gently
    7·1 answer
  • An ion always has a ________ or ________ charge. While a covalent bond always has no _________, meaning it is __________.
    5·1 answer
  • Two unlabelled bottles containing clear, colourless liquids are found in the organic section of the chemical storage room. Descr
    15·1 answer
  • ? Question
    11·1 answer
  • PLS HELP
    7·1 answer
  • Please answer questions 1-3 ASAP please!!!
    11·2 answers
  • Guys help please!! any five effects of heat!!​
    7·1 answer
  • PLEASE HELP ME WITH THID IFK IT!! ILL GIVE YOU EXTRA POINTS
    7·1 answer
  • Can someone please help me here is the question i will give u extra points All of the following can be inherited traits except f
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!