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weqwewe [10]
4 years ago
5

A student drew the following model:

Physics
2 answers:
Gelneren [198K]4 years ago
8 0

Answer: C Tectonic Plates

Explanation:

Morgarella [4.7K]4 years ago
5 0

Answer:

C. Tectonic plates.

Explanation:

The series given in the question is mantle...convection...volcano...cooling...crust..motion and then tectonic plate is next.

here the process started in mantle where hot lava was moving and due to convection, this molten lava came on the the surface in the form of volcano and cooled down and rocky crust was formed and the moving crust is known as tectonic plates.

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If you pull on one end of a skateboard with a force of 10 N, and your friend pulls on the other end with a force of 10 N. What i
Colt1911 [192]

Answer: Imma say balanced

Explanation:

Because if u pull one side of a skate board at 10n and your friend pulls the other side of the skate board at 10n it will be balanced because it doesn't move.

8 0
3 years ago
Which forces are acting on the student and the skateboard in the instant in which they are pushing off the wall? (Select all tha
diamong [38]
E all of the answers above correlate to the student and his skateboard
7 0
3 years ago
Read 2 more answers
The current that charges a capacitor transfers energy that is stored in the capacitor’s electric field. Consider a 2.0 μF capaci
lapo4ka [179]

Answer:

the capacitor voltage is V = 20 V

Explanation:

Given,

Capacitance of the capacitor =  2.0 μF

energy stored = 200 W

time (t) =2.0 μs

Capacitor voltage = ?

\dfrac{dE}{dt}=200 W

E =200\times 2 \times 10^{-6}

E =400 \times 10^{-6}\ J

we know,

E = \dfrac{1}{2}CV^2

V =\sqrt{\dfrac{2E}{C}}

V =\sqrt{\dfrac{2\times 400 \times 10^{-6}}{2\times 10^{-6}}}

V =\sqrt{400}

V = 20 V

so , the capacitor voltage is V = 20 V

7 0
3 years ago
1. A runner has an initial speed of 2 [m/s] and slowly speeds up with a constant acceleration of
zvonat [6]

Answer:

Final Velocity = 4.9 m/s

Explanation:

We are given;. Initial velocity; u = 2 m/s

Constant Acceleration; a = 0.1 m/s²

Distance; s = 100 m

To find the final velocity(v), we will use one of Newton's equations of motion;

v² = u² + 2as

Plugging in the relevant values to give;

v² = 2² + 2(0.1 × 100)

v² = 4 + 20

v² = 24

v = √24

v = 4.9 m/s

5 0
3 years ago
While on a playground, you and your niece take turns sliding down a frictionless slide. Your mass is 75 kg while your little nie
Olenka [21]

Answer:

c.

Explanation:

  • In absence of friction, total mechanical energy must be conserved.
  • This means that the change in gravitational potential energy (in magnitude) must be equal to the change in kinetic energy:

       \Delta K = \Delta U \\ \\  \frac{1}{2} * m* v^{2}  = m*g*h

  • As it can be seen, the mass m is on the both sides of the equation, which means that it can be simplified.
  • We can solve this equation for v (speed at the bottom) as follows:

        v = \sqrt{2*g*h}

  • As it can be seen, the mass has no part in the equation, so, due both are starting from the same height, both people have the same speed at the bottom.
  • The option c is the right one.
6 0
3 years ago
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