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
velikii [3]
3 years ago
12

What is the impulse of a 4kg object accelerating from 10m/s to 12m/s?

Physics
1 answer:
Makovka662 [10]3 years ago
4 0

Answer:8NS

Explanation:

Impulse=change in momentum

Impulse=mv-mu

Impulse=4x12-4x10

Impulse=48-40

Impulse=8NS

You might be interested in
Given that two vectors A = 5i-7j-3k, B = -4i+4j-8k find A×B​
WARRIOR [948]

\textbf{A}×\textbf{B}= 68\hat{\textbf{i}} + 52\hat{\textbf{j}} - 8\hat{\textbf{k}}

Explanation:

Given:

\textbf{A} = 5\hat{\textbf{i}} - 7\hat{\textbf{j}} - 3\hat{\textbf{k}}

\textbf{B} = -4\hat{\textbf{i}} + 4\hat{\textbf{j}} - 8\hat{\textbf{k}}

The cross product \textbf{A}×\textbf{B} is given by

\textbf{A}×\textbf{B} = \left|\begin{array}{ccc}\hat{\textbf{i}} & \hat{\textbf{j}} & \hat{\textbf{k}} \\\:\:5 & -7 & -3 \\ -4 & \:\:4 & -8 \\ \end{array}\right|

=  \left|\begin{array}{cc}-7 & -3\\\:4 & -8\\ \end{array}\right|\:\hat{\textbf{i}}\:+\:\left|\begin{array}{cc}-3 & \:\:5\\-8 & -4\\ \end{array}\right|\:\hat{\textbf{j}}\:+\: \left|\begin{array}{cc}\:\:5 & -7\\-4 & \:\:4\\ \end{array}\right|\:\hat{\textbf{k}}

= 68\hat{\textbf{i}} + 52\hat{\textbf{j}} - 8\hat{\textbf{k}}

5 0
3 years ago
How do most primary producers make their own food?​
MrRissso [65]

Answer:

in a kitchen

Explanation:

only if they're producing

3 0
3 years ago
Read 2 more answers
Which statement best describes the movement of atoms in a solid?
Ratling [72]
Atoms and molecules<span> in liquids and gases are bouncing and floating around, free to move where they want. The </span>molecules<span> in a solid are stuck in a specific </span>structure<span> or arrangement of atoms. The atoms still vibrate and the </span>electrons<span> fly around in their </span>orbitals<span>, but the entire atom will not change its </span>position<span>.</span>
3 0
3 years ago
Read 2 more answers
The energy required to change liquid at it boiling point to a gas is
soldi70 [24.7K]

Answer:

latent heat, also called the heat of vaporization, is the amount of energy necessary to change a liquid to a vapour at constant temperature and pressure. The energy required to melt a solid to a liquid is called the heat of fusion, and the heat of sublimation is the energy

Explanation:

8 0
3 years ago
The un-ionized form of an acid indicator is yellow and its anion is blue. the ka of this indicator is 10â’5 . what will be the c
myrzilka [38]
 color of the indicator in asolution of ph 3 will be yellow.
7 0
3 years ago
Other questions:
  • If the force of gravity acting on a box located near earths surface is 12.0 N, What’s it’s mass ?
    11·1 answer
  • True or false a force cannot set a motionless object in motion
    11·2 answers
  • Is there any induced current in the pickup coil when the polarity of the bar magnet is flipped?
    15·1 answer
  • Light strikes a metal surface, causing photoelectric emission. The stopping potential for the ejected electrons is 7.9 V, and th
    8·1 answer
  • The principles used to solve this problem are similar to those in Multiple-Concept Example 17. A 205-kg log is pulled up a ramp
    11·1 answer
  • Ann and Beth are measuring mass of an object, Ann reports a mass of 6 g while Beth obtains 6.0 g what are the range of uncertain
    11·1 answer
  • Why don't ring particles form a moon? a. They collide too violently to accrete into a moon. b. Tidal forces from moons prevent t
    14·1 answer
  • If you ride your bike at an average speed of 5 km/h and need to travel a total distance of 35 km, how long will it take you to r
    5·1 answer
  • PLEASE HELP!!! GIVING BRAINLIEST!! ill also answer questions that you have posted if you answer this correctly!!!! (40pts)
    13·1 answer
  • Describe how energy is transferred in one of the sequences.
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!