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
lesantik [10]
3 years ago
15

Please help!! This is a final and I need a good grade

Physics
1 answer:
Ket [755]3 years ago
6 0
Diagram 4 is the correct answer.


You might be interested in
After walking across a carpeted floor in socks, Jim brings his finger near a metal doorknob and receives a shock. what does that
8_murik_8 [283]
When you touch<span> a doorknob (or something else made of metal), which has a positive charge with few electrons.</span>
6 0
3 years ago
Read 2 more answers
A wheel that was initially spinning is accelerated at a constant angular acceleration of 5.0 rad/s^2. After 8.0 s, the wheel is
notka56 [123]

Answer:

a)  Initial angular speed = 30 rad/s

b) Final angular speed = 70 rad/s        

Explanation:

a) We have equation of motion s = ut + 0.5at²

    Here s = 400 radians

              t = 8 s

              a = 5 rad/s²

    Substituting

             400 = u x 8 + 0.5 x 5 x 8²

              u = 30 rad/s

   Initial angular speed = 30 rad/s

b) We have equation of motion v = u + at

     Here u = 30 rad/s

               t = 8 s

              a = 5 rad/s²  

    Substituting

             v = 30 + 5 x 8 = 70 rad/s    

   Final angular speed = 70 rad/s        

8 0
3 years ago
Love, which can’t be observed or measured directly, is an example of a psychological construct. true or false
oee [108]

Answer:

Isn't love a social construct?

Explanation:

7 0
3 years ago
a star has a distance of 30 parsecs and a apparent magnitude of 3 --what would its absolute magnitude be?
Alborosie

The absolute magnitude of the star would be +5.

8 0
1 year ago
5) Find the initial velocity for a 700 kg car that
Serhud [2]

Answer:

Δv = 12 m/s, but we are not given the direction, so there are really an infinite number of potential solutions.

Maximum initial speed is 40.6 m/s

Minimum initial speed is 16.6 m/s

Explanation:

Assume this is a NET impulse so we can ignore friction.

An impulse results in a change of momentum

The impulse applied was

p = Ft = 1400(6.0) = 8400 N•s

p = mΔv

Δv = 8400 / 700 = 12 m/s

If the impulse was applied in the direction the car was already moving, the initial velocity was

vi = 28.6 - 12 = 16.6 m/s

if the impulse was applied in the direction opposite of the original velocity, the initial velocity was

vi = 28.6 + 12 = 40.6 m/s

Other angles of Net force would result in various initial velocities.

5 0
3 years ago
Other questions:
  • The German V-2 rocket was the first man made object in space
    13·1 answer
  • The attraction or repulsion of two objects is called blank force what is the blank
    6·1 answer
  • What is the difference between vector and scalar ?
    9·1 answer
  • With which field of science is Albert Einstein associated? biology chemistry medecine physics
    8·2 answers
  • Do you know when the next full moon will beç
    13·1 answer
  • Two satellites, one in geosynchronous orbit (T = 24 hrs) and one with a period of 12 hrs, are orbiting Earth. How many times lar
    10·1 answer
  • Why is the earth Round
    12·2 answers
  • A circus performer stretches a tightrope between two towers. He strikes one end of the rope and sends a wave along it toward the
    8·1 answer
  • a student stands on a metric scale, his weight is 490 N. then another student hands him a 5.00-kg mass to hold. the force shown
    6·1 answer
  • Which of the following is not a compound <br> A. Gold <br> B. Water<br> C. Salt<br> D. Sugar
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!