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Lelechka [254]
4 years ago
6

An electron is moving horizontally in a laboratory when a uniform electric field is suddenly turned on. This field points vertic

ally upward. Which of the paths shown will the electron follow, assuming that gravity can be neglected?
Physics
1 answer:
makkiz [27]4 years ago
3 0

Explanation:

We know that electron always tends to travel in the direction opposite the direction of electric field ( force in directed opposite to the field on electron).

So, since the field points vertically upward , it force the electron move downward. So, the electron will be accelerated in downward in the right direction.

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How much would you have to shrink a baseball to a black hole?
Vesna [10]

The Schwarzchild radius is . . . <em>R = 2GM/c²  .</em>

Just like you, I'm not completely sure what that means.  But it DOES use the mass of a black hole to calculate a radius associated with it, so with 15 Brainly points at stake, it seems like a good-enough formula to use for an answer.

Before I proceed, I really should ask you whether you're talking a softball or a hardball, but again . . . . .

So R = 2GM/c²

G = the  gravitational constant = 6.67 x 10⁻¹¹ N-m²/kg²

M = mass of the baseball = 145 grams = 0.145 kg

c = speed of light = 3 x 10⁸ m/s

R = 2 (6.67 x 10⁻¹¹ m³/kg-s²) (0.145 kg) / (3 x 10⁸ m/s)²

R = (2 x 6.67 x 10⁻¹¹ x 0.145 / 9 x 10¹⁶) (m³-kg-s² / kg-s²-m²)

R = ( 1.9343 x 10⁻¹¹ / 9 x 10¹⁶) (m³-kg-s²/m²-kg-s²)

R = (0.2149 x 10⁻²⁷) meter

<em>R = 2.149 x 10⁻²⁸ meter</em>

For reference: The radius of a Hydrogen atom is 1.2 x 10⁻¹⁰ meter.

So in order to make a black hole out of a baseball, you have to crunch the baseball down to around  0.000000000000000001791 the size of a Hydrogen atom.

Would that be a problem for you ?

3 0
3 years ago
To what circuit element is an ideal capacitor equivalent in circuits for which the currents and voltages are constant with time?
Vanyuwa [196]

Explanation:

Since the current flowing through an ideal capacitor is described by equation:

i_{C}=C\frac{dV}{dt}

for voltage across the capacitor constant with time the current is:

i_{C}=\frac{d(Constant)}{dt}=0

Open switch has this characteristics (Constant voltage and zero current).  

3 0
3 years ago
Taste and smell are called chemical senses because:
Bingel [31]

Answer:

The answer is a," their receptors are sensitive to chemical molecules."

3 0
4 years ago
what system helps the body maintain homeostasis by giving it the nutrients it needs to perform different functions
castortr0y [4]
<span>The Cardiovascular system is the system that helps the body maintain homeostasis by giving it the nutrients it needs to perform different functions</span>
6 0
3 years ago
A point charge q1 = 4.50 nC is located on the x-axis at x = 1.95 m , and a second point charge q2 = -6.80 nC is on the y-axis at
Vinvika [58]

Answer:

Explanation:

One charge is situated at x = 1.95 m . Second charge is situated at y = 1.00 m

These two charges are situated outside sphere as it has radius of .365 m with center at origin. So charge inside sphere = zero.

Applying Gauss's theorem

Flux through spherical surface = charge inside sphere / ε₀

= 0 / ε₀

= 0 Ans .

3 0
3 years ago
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