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s2008m [1.1K]
3 years ago
7

What is electric energy

Physics
2 answers:
zmey [24]3 years ago
7 0

Answer:

electrons

Explanation:

they go through the wires and power our computer tech

coldgirl [10]3 years ago
5 0

Answer:

Electric energy is a form of kinetic energy.

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A particle of mass 2.37 kg is subject to a force that is always pointed towards East or West but whose magnitude changes sinusoi
Pavlova-9 [17]

Answer:

v(1.5)=0.7648\ m/s

Explanation:

<u>Dynamics</u>

When a particle of mass m is subject to a net force F, it moves at an acceleration given by

\displaystyle a=\frac{F}{m}

The particle has a mass of m=2.37 Kg and the force is horizontal with a variable magnitude given by

F=2cos1.1t

The variable acceleration is calculated by:

\displaystyle a=\frac{F}{m}=\frac{2cos1.1t}{2.37}

a=0.8439cos1.1t

The instant velocity is the integral of the acceleration:

\displaystyle v(t)=\int_{t_o}^{t_1}a.dt

\displaystyle v(t)=\int_{0}^{1.5}0.8439cos1.1t.dt

Integrating

\displaystyle v(1.5)=0.7672sin1.1t \left |_0^{1.5}

\displaystyle v(1.5)=0.7672(sin1.1\cdot 1.5-sin1.1\cdot 0)

\boxed{v(1.5)=0.7648\ m/s}

3 0
3 years ago
PLEASE HELP THIS IS URGENT!!!!! 50 POINTS!!!
Alja [10]
What math class are you in I think I can help
6 0
3 years ago
Read 2 more answers
During the time a compact disc (CD) accelerates from rest to a constant rotational speed of 477 rev/min, it rotates through an a
atroni [7]

Answer:

<em>126.01 rad/s^2</em>

<em></em>

Explanation:

since it starts from rest, initial angular speed ω' = 0 rad/s

angular speed N = 477 rev/min

angular speed in rad/s ω = \frac{2\pi N}{60} =  \frac{2*3.142* 477}{60} = 49.95 rad/s

angular displacement ∅ = 1.5758 rev

angular displacement in rad/s = 2\pi N = 2 x 3.142 x 1.5758 = 9.9 rad

angular acceleration \alpha = ?

using the equation of angular motion

ω^2 = ω'^2 + 2\alpha∅

imputing values, we have

49.95^{2}  = 0^{2}  + (2 *\alpha*9.9 )

2495 = 19.8\alpha

\alpha = 2495/19.8 = <em>126.01 rad/s^2</em>

8 0
3 years ago
Despite a very strong wind, a tennis player manages to hit a tennis ball with her racquet so that the ball passes over the net a
kobusy [5.1K]

Answer:

The downward force of gravity and the force exerted by the air.

Explanation:

Gravity, in a Newtonian Framework, acts at distance, so, the ball doesn't has to be connected to Earth to feel its gravitational pull (as we know by experience).

The racket only can exert a force in the ball when is touching it, so, once the ball has left the contact with the racket, there is no force by the "hit".

The air is always touching the ball on the atmosphere (even when physicist pretend that is not). So, there is drag from the wind, and a buoyant force  exerted by the air over the ball at every time.

5 0
4 years ago
What game has worst Physics?​
PSYCHO15rus [73]

Answer:

Cyberpunk has worst Physics

6 0
2 years ago
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