3 years ago

The two properties of an electron that cannot be known exactly at the same time are the ____________________.

1 answer:

6 0

Position and momentum.

This is Heisenberg's Uncertainty Principle:
Δx Δp ≥ h ÷ 4π, where Δx is the change in position, Δp is the change in momentum, and h is Planck's Constant.

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Answer:

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Explanation:

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3 years ago

A projectile fired up into the air at an angle has a range of 235 m and a flight time of 47 s.

madam [21]

<h2>Answer:5 $ms^{-1}$ ,133.6 $m$ ,51.18 $ms^{-1}$ </h2>

Explanation:

Let $v_{x}$ , $v_{y}$ be the horizontal and vertical components of velocity.

Question a:

Horizontal component of velocity is the ratio of range and time of flight.

So,horizontal component of velocity is $\frac{235}{47}=5ms^{-1}$

So, $v_{x}=5ms^{-1}$

Question b:

Time of flight= $\frac{2v_{y}}{g}$

So, $v_{y}=\frac{47\times 9.8}{2}=51.18ms^{-1}$

Maximum height is given by $\frac{v_{y}^{2}}{2g}$

So,maximum height is $\frac{51.18^{2}}{2\times 9.8}=133.6m$

Question c:

The vertical velocity is already calculated in Question b.

$v_{y}=51.18ms^{-1}$

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3 years ago

1. A 6-volt battery produces a current of 0.5 amps. What is the power in the circuit?

allochka39001 [22]

Answer:

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have a great day

Explanation:

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2 years ago

What are three skills that move objects?

netineya [11]

Gravity, oxygen, mass

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3 years ago

Was the Big Bang a loud explosion? Why?

Sholpan [36]

Answer:

bc it was a universal explosion and It started the future

Explanation:

FACTS

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3 years ago

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