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lina2011 [118]
4 years ago
15

HELP ASAP 20PTS . . . . . . . . .

Physics
1 answer:
never [62]4 years ago
5 0

Answer:

Y and Z

Hop this helps :)

Explanation:

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Moment of inertia describes Select one: a. How the mass of an extended object is distributed about a rotation axis. b. How a for
olga nikolaevna [1]

Answer: a. How the mass of an extended object is distributed about a rotation axis

Explanation: Moment of inertia is defined as the measure of the rotational inertia of a solid object, it is a quantity that defines the torque needed to reach a desired angular acceleration around a given rotation axis, and it depends mainly on the mass distribution of the object, so the correct answer is: "how the mass of an extended object is distributed about a rotation axis"

7 0
3 years ago
What is de Broglie's hypothesis ? Make sure to be specific (qualitative and quantitative)
victus00 [196]

Answer and Explanation:

DE BROGLIE 'S HYPOTHESIS :

  • According to De broglie the matter have dual nature it can behave as particle as well as wave
  • According to this hypothesis all matter have wave like property and having wavelength.
  • The de broglie wavelength is given by \lambda =\frac{h}{P} here h is plank's constant and P is momentum
  • This hypothesis determines the probability of finding the object at a give point

3 0
3 years ago
Light can travel through outer space from the Sun to the Earth. This shows that
PIT_PIT [208]

Answer:

c. that light can travel in a vacuum

6 0
4 years ago
Help me please. Please see attached for the questions with the graph
KatRina [158]

<u>Answer</u>

5) b-c

6)    a-b and

       e-f

7) f-g

9) a-b = 0 m/s

    c-d = 0.6667 m/s

    e-f = 0 m/s

    f-g = -3 m/s

10) b-c ⇒ The cart is acceleration.

   e-f ⇒ The cart is moving backwards with a constant velocity.

<u>Explanation</u>

Answer

5) b-c

In the section b-c the cart is accelerating because the slope of the graph is changing. The gradient that represent velocity is increasing.

6) a-b and e-f

At this sections the distance is not changing at all. This can only mean that the cart is not moving. It is at rest.

7) f-g

At this section the slope is negative meaning the cart is moving back to where it came from.

9) a-b = 0 m/s

At a-b the cart is not moving. So the velocity is zero.

<u>     c-d = 0.66667 m/s</u>

Velocity = distance / time

               =(50-40)/(40-25)

                = 10/15

                 = 0.6667  m/s

   <u> e-f = 0 m/s</u>

At e-f the cart is not moving. So the velocity is zero.

 <u>   f-g = -3 m/s</u>

Velocity = distance / time

               = (60-30)/(65-75)

                = 30/-10

                = - 3 m/s

10) b-c ⇒ The cart is acceleration.

   e-f ⇒ The cart is moving backwards with a constant velocity.

     

3 0
4 years ago
URGENT
Gemiola [76]

Answer:

5.25 J

Explanation:

W = PE = (f)(x)

PE = 35N*0.15m

PE = 5.25 N*m

1 N*m = 1 J

PE = 5.25 J

7 0
3 years ago
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