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3 years ago

Answer please in comment what i am typing

Physics

1 answer:

qwelly [4]3 years ago

3 0

Answer:

Hiiiiiiii........where r u frm??

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In order to generate electricity from mechanical energy,one essential element needed to transform the energy into electrical ene

s344n2d4d5 [400]

Answer:

Magnet or magnetic field

Explanation:

5 0

3 years ago

When cleaning up a local beach, students found many different particles that were in the water that affected the shoreline, like

Wewaii [24]

The correct answer is D,

4 0

3 years ago

I'm trying to find the potential energy of a planet using formula G M(sun) x m(planet) / r. I have given G - newton's graviation

ludmilkaskok [199]

Answer:

$-5.39\times10^{33} J$

Explanation:

Potential energy =

$-\frac{GMm}{r}\\=-\frac{6.67\times10^{-11}\times1.99\times10^{30}\times5.97\times10^{24}}{147/1\times10^{9}}\\=-5.39\times10^{33} J$

7 0

2 years ago

A player kicks a soccer ball from ground level and sends it flying at an angle of 30 degrees at a speed of 26 m/s. What is the m

Akimi4 [234]

Answer:

8.6 m

Explanation:

The motion of a soccer ball is a motion of a projectile, with a uniform motion along the horizontal (x-) direction and an accelerated motion along the vertical (y-) direction, with constant acceleration $a=g=-9.8 m/s^2$ towards the ground (we take upward as positive direction, so acceleration is negative).

The initial velocity along the vertical direction is

$v_{y0} = v_0 sin \theta = (26 m/s)(sin 30^{\circ})=13 m/s$

Now we can consider the motion along the vertical direction only. the vertical velocity at time t is given by:

$v_y(t)=v_{y0} +at$

At the point of maximum height, $v_y(t)=0$ , so we can find the time t at which the ball reaches the maximum height:

$0=v_{y0}+at\\t=-\frac{v_{y0}}{a}=-\frac{13 m/s}{-9.8 m/s^2}=1.33 s$

And now we can use the equation of motion along the y-axis to find the vertical position of the ball at t=1.33 s, which corresponds to the maximum height of the ball:

$y(t)=v_{y0}t + \frac{1}{2}at^2=(13 m/s)(1.33 s)+\frac{1}{2}(-9.8 m/s^2)(1.33 s)^2=8.6 m$

4 0

3 years ago

In the circuit described by the diagram, which pair of resistors is connected in parallel?

scoundrel [369]

Option 4 ( R2 and R3 ) is the correct answer.

Explanation:

In the below given diagram, we can see a circuit diagram that has four resistors such as R1, R2, R3, and R4.
The opening of the circuit is noted as "a" and the ending is noted as "b".
By observing the above diagram, we can clearly see that R2 and R3 are the pair of resistors that are connected in a parallel manner.
Where all the other resistors such as R1 and R4 are neither connected in parallel nor in series.

Hence we can conclude that Resistor R2 and R3 are the ones that are connected in parallel.

6 0

3 years ago

Answer please in comment what i am typing​

Answer please in comment what i am typing