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3 years ago

An electric field E⃗ =5.00×105ı^N/C causes the point charge in the figure to hang at an angle. What is θ?

Physics

1 answer:

elena-14-01-66 [18.8K]3 years ago

4 0

Explanation:

how difficult question

My head is sppining

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A paintball is shot horizontally in the positive x direction at time t after the ball is shot it is 4 cm to the right and 4 cm b

Artist 52 [7]

<u>Answer:</u>

At time 2t the paint ball is at 8 cm to the right and 16 cm to the bottom

<u>Explanation:</u>

We have equation of motion , $s= ut+\frac{1}{2} at^2$ , s is the displacement, u is the initial velocity, a is the acceleration and t is the time.

Considering the horizontal motion of paint ball

Distance traveled during time t = 4 cm

Initial velocity = u m/s

Acceleration = 0 $m/s^2$

So $4 = u*t+\frac{1}{2} *0*t^2\\ \\ u = \frac{4}{t}$

Now at time 2t,

$S= u*2t+\frac{1}{2} *0*(2t)^2\\ \\=\frac{4}{t} *2t\\ \\ =8cm$

So horizontal distance traveled in time 2t = 8 cm to the right

Now considering the vertical motion of paint ball

Distance traveled during time t = 4 cm

Initial velocity = 0 m/s

Acceleration = -g $m/s^2$

$4=0*t-\frac{1}{2} *g*t^2\\ \\ t^2=\frac{-8}{g}$

At time 2t,

$S=0*2t-\frac{1}{2} *g*(2t)^2\\ \\ =-\frac{1}{2} *g*4*\frac{-8}{g}\\ \\ =16 cm$

So vertical distance traveled in time 2t = 16 cm to the bottom

6 0

3 years ago

PLZ HURRY GOTTA HAVE IT DONE BEFORE MY MOM GETS HOME SHES 5 MINS AWAY!!!!!!!

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Answer:

The answer is B the products of photosynthesis are the reactants of cellular respiration

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3 years ago

How many electrons does bromine (#35) have in its valence level?

kupik [55]

Bromine has 7 electrons in their valence shell.......

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3 years ago

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a person is riding a bike and accelerating at 2.8m/s with a force of 100 n what is the mass of the rider and bicycle

kiruha [24]

The mass of the rider and bicycle would be 35.7 and I’m assuming the unit would be kg so 35.7kg

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3 years ago

Suppose you have two identical capacitors. You connect the first capacitor to a battery that has a voltage of 21.2 volts, and yo

HACTEHA [7]

Answer:

r=2.743

Explanation:

The energy stored on a capacitor is of type potencial, therfore depends on the capacity to "store" energy. Inthe case of the capacitor, it stores charge (Q), and the equations you use to calculate it are:

$E_p=\frac{Q^2}{2C}=\frac{QV}{2}=\frac{CV^2}{2}$

In this case we know V and C, therefore we use the last expression:

$E_{p1}=\frac{CV_1^2}{2}$

$E_{p2}=\frac{CV_2^2}{2}$

$\frac{E_{p1}}{E_{p2}}=r=\frac{\frac{CV_1^2}{2}}{\frac{CV_2^2}{2}} \\r=(\frac{V_1}{V_2})^2\\r=(\frac{21.2}{12.8})^2$

r=2.743

3 0

3 years ago