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
Yuki888 [10]
3 years ago
7

Before the fission process takes place, lead-207 is bombarded with neutrons, it can change into

Physics
2 answers:
Oduvanchick [21]3 years ago
8 0

Lead-207 can change into Lead-208.

When Lead-207 is bombarded with neutrons, the atom acquires the neutron. Adding a neutron only changes the mass number of the atom. This does not involve change in the identity of the atom. So, Lead-207 can change into Lead-208 without change in its chemical properties.

Svetach [21]3 years ago
6 0
Lead-208, because I guessed and that was the answer.
You might be interested in
Claire just purchased a new silk dress for her school’s winter formal. She loves the feel of silk and keeps rubbing it with her
bezimeni [28]

Answer:

C.

would adapt if the dress were held completely still

Explanation:

3 0
3 years ago
Read 2 more answers
A combined circuit has two resistors in series (27.5 ohms and 33.0 ohms) and another in parallel (22.0 ohms). If the power sourc
Dafna1 [17]
R 1,2 = 27.5 + 33.0 = 60.5 Ohms
1/ R 1,2,3 = 1/ 60.5 + 1 / 22 = 82.5 / 1331
R 1, 2, 3 = 1331 / 82.5 = 16.13 Ohms
I = U / R
I = 9 V / 16.13 Ohms = 0.557 A ≈ 0.56 A
Answer: C ) 0.56 Amps 
4 0
3 years ago
What is the difference between obtaining knowledge from a controlled experiment versus other forms of scientific investigation?
solong [7]

Answer:

Any scientific investigation in its simplest form involves collecting information, while a controlled experiment is a tightly controlled investigation that tests a hypothesis.

Explanation:

All the scientific investigations start with a particular question. The question decides what type of investigation should research take. A controlled experiment is an investigation which allows a particular variable to change and all other variable controlled to remain constant to see the effect on dependent variable to test a particular hypothesis while other types of investigations are used to increase the knowledge or information about the particular research subject.

6 0
3 years ago
If a car accelerates at a uniform 4.0 m/s, how long will it take to reach a speed of 36.0 m/s,
11111nata11111 [884]

Answer:

9s

Explanation:

v=u+at

36=0+4t

t=36-0/4

t=9s

5 0
3 years ago
When one person shouts at a football game, the sound intensity level at the center of the field is 58.4 dB. When all the people
Tanzania [10]

Answer:

The number of people at game are approximately 22909

Explanation:

Given data

When one person shout \beta _{1}=58.4dB

When n number of person shout together \beta _{n}=102dB

The sound intensity level during one person shout is given by:

\beta _{1}=10log(\frac{I_{1}}{I_{o}} )\\58.4=10log(\frac{I_{1}}{I_{o}} )\\5.84=log(\frac{I_{1}}{I_{o}} )\\\frac{I_{1}}{I_{o}} =10^{5.84}\\I_{1}=10^{5.84}*I_{o}

The sound intensity level during n number of person shout is given by:

\beta _{n}=10log(\frac{I_{n}}{I_{o}} )\\102=10log(\frac{I_{n}}{I_{o}} )\\10.2=log(\frac{I_{n}}{I_{o}} )\\\frac{I_{n}}{I_{o}}=10^{10.2}\\I_{n}=10^{10.2}*I_{o}

Since each person generates same sound intensity and hence total number  of persons can be determined as

 =\frac{I_{n}}{I_{1}}\\ =\frac{10^{10.2}I_{o}}{10^{5.84}I_{o}} \\=22909

Hence

The number of people at game are approximately 22909

3 0
3 years ago
Read 2 more answers
Other questions:
  • Undersoil electrical heating systems are used in greenhouses. This system could also be
    15·1 answer
  • An L−R−C series circuit has 91.5 Ω , and the amplitude of the voltage across the resistor is 36.0 V . What is the average power
    6·1 answer
  • Which of the following is the best definition of work?
    9·1 answer
  • Estimate the water volume in the graduated cylinder to the nearest 0.1 mL.
    10·1 answer
  • If we decrease the distance an object moves we will
    5·2 answers
  • Which of the following is an application of of the technology developed by Charles kuen kao
    11·2 answers
  • A kid applies a force of 70 N to a ball over 1.1 meters. How much work did he do on the ball?
    14·1 answer
  • You serve a volleyball with a mass of 1.4 kg. The ball leaves with a speed of 13 m/s. Calculate KE
    15·1 answer
  • A 2300 kg sailboat is moving west at 5.5 m/s when an eastward wind
    7·1 answer
  • Where are the reproductive parts of a plant located?
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!