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
SpyIntel [72]
3 years ago
7

I need help with these questions.

Physics
1 answer:
strojnjashka [21]3 years ago
4 0

I'll go ahead and answer the ones here without an answer. For reference, the half-life formula is <em>final amount = original amount(1/2)^(time/half-life)</em>

<em />

4) 12.5g

x = 100(1/2)^(63/21)

5) 50g

3.125 = x(1/2)^(0.1/0.025)

6) 500g

x = 4000(1/2)^(525/175)

7) 0.24g

0.06 = x(1/2)^(11430/5730)

8) 125g

x = 1000(1/2)^(17100/5700)

Hope this helps! :)

You might be interested in
A truck is carrying a refrigerator as shown in the figure. The height of the refrigerator is 158.0 cm, the width is 60.0 cm. The
Arada [10]

The maximum acceleration the truck can have so that the refrigerator does not tip over is 4.15 m/s².

<h3>What will be the maximum acceleration of the truck to avoid tipping over?</h3>

The maximum acceleration is obtained by taking clockwise moments about the tipping point of rotation.

Clockwise moment = Anticlockwise moment

Ft * 1.58 m = F * 0.67 m

where

  • Ft is tipping force = mass * acceleration, a
  • F is weight = mass * acceleration due to gravity, g

m * a * 1.58 = m * 9.81 * 0.67

a = 4.15 m/s²

The maximum acceleration the truck can have so that the refrigerator does not tip over is 4.15 m/s².

In conclusion, the acceleration of the truck is found by taking moments about the tipping point.

Learn more about moments of forces at: brainly.com/question/27282169

#SPJ1

3 0
1 year ago
Which of the following statements best describes earths mineral resources
bulgar [2K]
It is D, you can not replace minerals. This makes them valuable.
8 0
3 years ago
Read 2 more answers
Which statement is supported by this scenario?
Temka [501]

Answer:

For Yanni, the speed of the ball is 15 m/s, and for the quarterback, the speed of the ball is 8 m/s.

Explanation:

6 0
2 years ago
Read 2 more answers
An equilibrium constant is not changed by a change in pressure <br> a. True<br> b. False
Umnica [9.8K]
Hi There! :)


An equilibrium constant is not changed by a change in pressurea. True
b. False

False! :P
7 0
3 years ago
Read 2 more answers
Four balls have the same temperature. Which ball has the most thermal
puteri [66]

Answer:

a bowling ball because it has the most mass.

7 0
3 years ago
Read 2 more answers
Other questions:
  • For the Texas Department of Public Safety, you are investigating an accident that occurred early on a foggy morning in a remote
    12·1 answer
  • PLEASE ANSWER USING ALL MY POINTS FOR THIS NEED HELP (please answer all of them)
    13·1 answer
  • An egg is dropped from a building that is 61 m high.
    8·1 answer
  • A sports car is advertised to be able to stop in a distance of 50.0 m from a speed is 99.0km/h. What is its acceleration in m/s2
    10·1 answer
  • Написать сочинение на тему маленький человечек​
    13·1 answer
  • The conservation of energy principle applies to a. all systems. b. open systems. c. closed systems. d. Ideal gas systems.
    9·2 answers
  • Rain that tends to fall in bands on earth is caused by which of the following?
    12·2 answers
  • Which of the following is true about scientific knowledge?
    7·1 answer
  • What is an electric current​
    14·2 answers
  • In a longitudinal wave, amplitude can be measured
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!