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
slamgirl [31]
3 years ago
11

It takes 300 newtons of force and a distance of 20 meters for a moving car to come to stop

Physics
1 answer:
Andrei [34K]3 years ago
7 0
The answer is 15 I think.
You might be interested in
In a research facility, a person lies on a horizontal platform which floats on a film of air. When the person's heart beats, it
anastassius [24]

Answer: 3.48g

Explanation:

here, we will be using conservation of momentum to solve the problem. i.e the total momentum remains unchanged, unless an external force acts on the system. We'll in thus question, there is no external force acting in the system.

Remember, momentum = mass * velocity, then

mass of blood * velocity of blood = combined mass of subject and pallet * velocity of subject and pallet

Velocity of blood = 56.5cm = 0.565m

mass of blood * 0.565 = 54kg * (0.000063/0.160)

mass of blood * 0.565 = 54 * 0.00039375

mass of blood * 0.565 = 0.001969

mass of blood = 0.00348kg

Thus, the mass of blood that leaves the heart is 3.48g

7 0
3 years ago
Read 2 more answers
Debbie plotted a graph to show how the mass of aluminium rivets affected the distance the cup moved down.
Elan Coil [88]

Answer:

26

Explanation:

4 0
3 years ago
What happens to a wave when it moves from one medium to another?
Nina [5.8K]
One side of the wave changes speed before the other side, causing the wave to move
3 0
3 years ago
Help with these please someone?
DIA [1.3K]

Answer:

8. 2.75·10^-4 s^-1

9. No, too much of the carbon-14 would have decayed for radiation to be detected.

Explanation:

8. The half-life of 42 minutes is 2520 seconds, so you have ...

1/2 = e^(-λt) = e^(-(2520 s)λ)

ln(1/2) = -(2520 s)λ

-ln(1/2)/(2520 s) = λ ≈ 2.75×10^-4 s^-1

___

9. Reference material on carbon-14 dating suggests the method is not useful for time periods greater than about 50,000 years. The half-life of C-14 is about 5730 years, so at 65 million years, about ...

6.5·10^7/5.73·10^3 ≈ 11344

half-lives will have passed. Whatever carbon 14 may have existed at the time will have decayed completely to nothing after that many half-lives.

7 0
3 years ago
Whose data did Kepler use to describe the motion of the planets?
Levart [38]

Answer:

Tycho Brahe

Explanation:

Tycho Brahe's accurate observations of planetary positions provided the data used by Johannes Kepler to derive his three fundamental laws of planetary motion.

7 0
2 years ago
Read 2 more answers
Other questions:
  • Which sentence contains italicized words that are used as an infinitive phrase?
    10·1 answer
  • A paper filled capacitor is charged to a potential difference of 2.1 V and then disconnected from the charging circuit. The diel
    15·1 answer
  • Kalyan ramji sain, of india, had a mustache that measured 3.39 m from end to end in 1993. suppose two charges, q and 3q, are pla
    12·1 answer
  • Are you doing work holding a heavy piece of furniture in place
    13·1 answer
  • Please help ill give brainliest.
    10·2 answers
  • Do all of our scientific instruments have a limit on how precise they can make a measurement?
    14·1 answer
  • What is the resistance of a bulb of 40w connected in a line of 70v​
    13·1 answer
  • How to solve 2A− B ?
    14·1 answer
  • Nvhfbvhefvhabjbnvjhhjaqiuv.....
    10·1 answer
  • How to change mass but keep the force the same?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!