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
Rus_ich [418]
3 years ago
10

The initial momentum of a system is measured at 300 kg•m/s. Afterwards, the

Physics
1 answer:
ahrayia [7]3 years ago
7 0
Impulse is the change in momentum. So you just have to subtract 300 -280

The answer would be 20kgm/s
You might be interested in
Why does the uv from the sun hurt our eyes. Plz help
Oksanka [162]
Ultraviolet radiation from the sun is controlled by the ozone but if it infiltrates into the atmosphere it becomes a hazard. The uv reaches our eyes and darkens the retina and blurs vision. The fovea becomes insensitive and the cells dormant. This causes gradual blindness.
4 0
3 years ago
What movements of water has the greatest effect on the growth of producers
kolbaska11 [484]
The movement of water that has the greatest effect on the growth of producers is <em><u>upwelling</u></em><em><u /></em>.

Upwelling is a rising of a liquid. The reason upwelling is much better for producers is because it is a slow rising in the water level, preventing erosion to the topsoil and still giving the necessary amount of water and nutrients the producers need.

Thank you for your question! I hope this helped! Have an amazing day and feel free to let me know if you need any more help with anything :D <span />
5 0
3 years ago
How can you keep sound out of a room
GREYUIT [131]
To keep<span> noise from entering your space, look for </span>sound<span> blockers</span>
8 0
3 years ago
A bird flew16 km west in 5 hours, then flew 20 km east in 6 hours. what was the birdâs velocity?
Mademuasel [1]
Solve for Speed: 16+20=36 km in 11 hrs
Answer: speed = 3.27273 kilometers per hour

To solve for speed or rate use the formula for speed, s = d/t which means speed equals distance divided by time.

<span>speed = distance/time</span>

4 0
3 years ago
A 0.750 kg block is attached to a spring with spring constant 17.5 N/m. While the block is sitting at rest, a student hits it wi
Dmitriy789 [7]

Answer:

a

 A =  0.081 \  m

b

The value is  u =  0.2569 \  m/s

Explanation:

From the question we are told that

   The mass is  m  =  0.750 \ kg

   The spring constant is  k  =  17.5 \  N/m

    The instantaneous speed is  v  =  39.0 \  cm/s= 0.39 \  m/s

    The position consider is  x =  0.750A  meters from equilibrium point

   

Generally from the law of  energy conservation we have that

        The kinetic energy induced by the hammer  =  The energy stored in the spring

So

          \frac{1}{2} *  m * v^2  =  \frac{1}{2}  *  k  *  A^2

Here a is the amplitude of the subsequent oscillations

=>      A =  \sqrt{\frac{m *  v^ 2 }{ k} }

=>      A =  \sqrt{\frac{0.750 *  0.39 ^ 2 }{17.5} }

=>       A =  0.081 \  m

Generally from the law of  energy conservation we have that

The kinetic energy  by the hammer  =  The energy stored in the spring at the point considered   +   The kinetic energy at the considered point

             \frac{1}{2}  * m *  v^2 = \frac{1}{2}  * k x^2 + \frac{1}{2}  * m *  u^2

=>          \frac{1}{2}  * 0.750 *  0.39^2 = \frac{1}{2}  * 17.5* 0.750(0.081 )^2 + \frac{1}{2}  * 0.750 *  u^2

=>          u =  0.2569 \  m/s

3 0
2 years ago
Other questions:
  • Obviously, we can make rockets to go very fast, but what is a reasonable top speed? assume that a rocket is fired from rest at a
    14·1 answer
  • In a chemical reaction sodium and chlorine react to form sodium chloride.
    5·2 answers
  • A 1.0 kg object moving at 4.5 m/s has a wavelength of:
    12·1 answer
  • The impulse given to a ball with mass of 4 kg is 16 N s. If the ball starts from rest, what is its final velocity?
    13·1 answer
  • URGENT! who hypothesized that electrons orbit around a nucleus?
    15·1 answer
  • Which of these is the best explanation for why two negatively charged balloons, if put close, will repel?
    9·1 answer
  • What is the tension in the cord after the system is released from rest? Both masses (A and B) are 10-kg.
    9·1 answer
  • You ride a roller coaster with a loop-the-loop. Compare the normal force that the seat exerts on you to the force that Earth exe
    14·1 answer
  • A ball is thrown upwards with an initial velocity of 25.o m/s, what is the velocity of the ball at 11.9 m from the ground?
    6·1 answer
  • WHAT IS THE SPEED OF LIGHT?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!