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
erik [133]
3 years ago
9

A 2 kg object moves along the x axis. The only force on it depends on time and equals (4N/s^2)t^2 + 4N. if the object is at rest

at t = 0, what is the velocity at t = 4.0s?
Advanced Placement (AP)
1 answer:
Vitek1552 [10]3 years ago
7 0

Answer:

The change in momentum equals the area under the graph (the impulse). That area is 4N * 3s - 2N * 2s = 8 N s. Therefore . m delta(v) = 8 kg m/s. 1.2 kg * ( v(6) - v(0) ) = 8 kg m/s

Explanation:

A)An object cannot remain at rest unless the net force acting on it is zero. B) If a block is moving to the left with constant velocity the net force applied to the block is zero. C) A block of mass 2 kg is acted upon by two forces: 3N (directed to the left) and 4N (directed to the right).

You might be interested in
Has anyone been getting answers with scam links lately?<br><br>put comments and answers below
pychu [463]

Answer:

so many it's becoming annoying

4 0
3 years ago
Read 2 more answers
Ayo i miss my ex :(<br> pls tell me im not the only one
kumpel [21]
Mhm ya u da only one
4 0
3 years ago
Read 2 more answers
30 POINTS! PLEASE ANSWER ASAP!
aev [14]

Answer:

You go to your normal high school class, but the credit that you earn for it will transfer to the community college.

Explanation:

In an Articulated Credit program, you take classes in your regular high school in order to earn college credit.

8 0
3 years ago
Please answer. Very urgent. All 3 questions. &lt;3
Debora [2.8K]

Answer:

a. each particle of matter vibrates about its normal rest position and along the axis of propagation,

b. Liquids

C. because liquids have the right amount of space between them for the wave to pass through quickly

Explanation:

5 0
3 years ago
What size is a high mass star
Alinara [238K]
It is a circle with a ring around it 
4 0
3 years ago
Read 2 more answers
Other questions:
  • In a score sheet, what does a double bar line represent? the end? the beginning? the pitch?
    7·2 answers
  • What percentage of u.s. undergraduates attend a community college?
    13·1 answer
  • A dotplot of the distribution of height for Mrs. Navard’s class is shown, along with some numerical summaries of the data. Suppo
    14·1 answer
  • If you enjoy working with children and teenagers, the __career cluster might be a good fit for you.
    13·2 answers
  • "As I watched, the sun broke weakly through, brightened the rich red of the fawns, and kindled their white spots." -- E. B. Whit
    10·1 answer
  • An oil refinery can refine about 20 gallons of gasoline from one barrel of crude oil. If an automobile has a fuel economy of 25
    7·1 answer
  • Which of the following conclusions can be drawn from the data?
    7·1 answer
  • A hypothesis test was conducted to see whether there is an association between a person’s income level and his or her education
    8·2 answers
  • How does inbound marketing differ from outbound marketing?
    8·1 answer
  • Which of the following is one of the first things you
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!