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Most of the mass of atom is in a dense positively charged nucleus. Most of the volume of an atom is in an empty space in which negatively charged electrons move around the nucleus.

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3 0

4 years ago

A particle (m = 4.3 × 10^-28 kg) starting from rest, experiences an acceleration of 2.4 × 10^7 m/s^2 for 5.0 s. What is its de B

Novay_Z [31]

Answer:

Wavelength, $\lambda=1.28\times 10^{-14}\ m$

Explanation:

Given that,

Mass of the particle, $m=4.3\times 10^{-28}\ kg$

Acceleration of the particle, $a=2.4\times 10^7\ m/s^2$

Time, t = 5 s

It starts from rest, u = 0

The De Broglie wavelength is given by :

$\lambda=\dfrac{h}{mv}$

v = a × t

$\lambda=\dfrac{h}{mat}$

$\lambda=\dfrac{6.67\times 10^{-34}}{4.3\times 10^{-28}\times 2.4\times 10^7\times 5}$

$\lambda=1.28\times 10^{-14}\ m$

Hence, this is the required solution.

4 0

3 years ago

According to Newton's second law of motion, if we we have a rigid, unchanging mass and we observe it accelerating, what must be

faltersainse [42]

A. a force is being applied to the mass

4 0

3 years ago

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An ultrasonic tape measure uses frequencies above 20 MHz todetermine dimensions of structures such as buildings. It does so byem

ohaa [14]

Answer:

a) 1m

b) 2μs

c) 3mm

Explanation:

3 0

3 years ago

___________________ and ___________________________ are two main types of waves.

_ and _________ are two main types of waves.