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
Misha Larkins [42]
3 years ago
10

In a first order decomposition in which the rate constant is 0.204 sec-1, how long will it take (in seconds) until 0.399 mol/L o

f the compound is left, if there was 0.991 mol/L at the start? (give answer to 3 decimal places)?
Physics
1 answer:
DENIUS [597]3 years ago
5 0

Answer:

2.902 to 3 decimal places

You might be interested in
Which of the examples below is an example of convection?
nasty-shy [4]
Basking in the sun :)
3 0
2 years ago
A mass m attached to a spring of constant k is oscillating on a frictionless surface. A second mass of mass m is dropped on top
elixir [45]

Answer:

E. The period of oscillation increases.

Explanation:

The period of oscillation is:

T = 2π√(m/k)

Frequency is the inverse of period (f = 1/T), so as period increases, frequency decreases.

Increasing the mass will increase the period and decrease the frequency.

8 0
3 years ago
How does the diameter of the disk of milky way galaxy compare to its thickness?
weqwewe [10]
The diameter is about 100 times as great as the thickness.
7 0
3 years ago
The sound level measured in a room by a person watching a movie on a home theater system varies from 40 dB during a quiet part t
UNO [17]

Answer:

\alpha=-3.01dB

Explanation:

From the question we are told that:

Sound level intensity

 \triangle I=40dB-80dB

Generally the equation for  intensity level  is mathematically given by

 \alpha=10log_{10}(I/I_x)dB

Where

 I= Intensity measured

 I_x=Threshold\ of\ audibility

 I_x= 10-12 W / m2

 \alpha= 10 log10 \frac{I_1}{I_x} - 10 log10 \frac{}I_2{I_x}

 \alpha= 10 log10 \frac{I_1}{I_2}

 \alpha=10 log10\frac{40}{80}

 \alpha=-3.01dB

7 0
3 years ago
PLEASE HELP SOLVE THIS PHOTO BELOW
polet [3.4K]

Answer:

C

Explanation:

The pattern is adding .5 to the cm every .1 in weight you just continue the table

8 0
3 years ago
Read 2 more answers
Other questions:
  • Lasers are classified according to the eye-damage danger they pose. Class 2 lasers, including many laser pointers, produce visib
    15·1 answer
  • An electric field of 260 000 n/c points due west at a certain spot. what are the magnitude and direction of the force that acts
    10·1 answer
  • One-eighth of an original radioactive sample will remain at the end of __________ half-lives.
    12·1 answer
  • This problem describes an experimental method for determining the moment of inertia of an irregular shaped object such as the pa
    8·1 answer
  • Two electromagnets are running with equal amounts of electric current. Electromagnet A uses a piece of iron as its metal core, w
    14·1 answer
  • A 17-car train standing on the siding is started in motion by the train’s engine. 9 cm slack is between each of the cars, which
    7·1 answer
  • A 100-kg merry-go-round in the shape of a uniform, solid, horizontal disk of radius 1.50 m is set in motion by wrapping a rope a
    15·1 answer
  • A 2.0-kg mass is projected from the edge of the top of a 20-m tall building with a velocity of 24 m/s at some unknown angle abov
    13·1 answer
  • A merry-go-round on a playground consists of a horizontal solid disk with a weight of 805 N and a radius of 1.58 m. A child appl
    5·1 answer
  • An outfielder with a mass of 86 Kilograms catches a baseball with a mass of 0.15 kilograms.The velocity of the ball just before
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!