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3 years ago

According to de broglie, as the momentum of a moving particle is tripled, the corresponding wavelength changes by what factor?

1 answer:

4 0

According to Louis de Broglie, as the momentum of a moving particle is tripled, the corresponding wavelength changes by 1/3. De Broglie’s wavelengths of particles that are moving are varying in accordance with their linear momentum. De Broglie’s wavelength is inversely proportional to the linear momentum (λ = h/p).

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A water tank has a square base of area 8 square meters. Initially the tank contains 70 cubic meters. Water leaves the tank, star

OLEGan [10]

Answer:

Explanation:

Given

base of water tank $A=8\ m^2$

Initial volume of water $V=70\ m^3$

Water leaves the tank at the rate of

$\frac{\mathrm{d} V}{\mathrm{d} t}=-(2+4t^3)$

Integrating rate to get desired volume

at $t=0,V=70\ m^3$

at $t=3\ hr,V=V$

therefore

$\int_{70}^{V}dV=\int_{0}^{3}-\left ( 2+4t\right )dt$

$V-70=2t+2t^2|_0^3$

$V-70=-24$

$V=46\ m^3$

and $volume=Area\times h$

$h=\frac{V}{A}$

$h=\frac{46}{8}$

$h=5.75\ m$

Thus height of water remaining is $5.75\ m$

8 0

3 years ago

A toy car is moving across a table with a velocity of 7.0 m/s and drives off the end. The table is 1.8 m tall. How long will the

KatRina [158]

Answer:

Option D - 0.2 s

Explanation:

We are given;

Initial velocity; u = 7 m/s

Height of table; h = 1.8m

Now,since we want to find the time the car spent in the air, we will simply use one of Newton's equation of motion.

Thus;

h = ut + ½gt²

Plugging in the relevant values, we have;

1.8 = 7t + ½(9.8)t²

4.9t² + 7t - 1.8 = 0

Using quadratic formula to find the roots of the equation gives us;

t = -1.65 or 0.22

We can't have negative t value, thus we will pick the positive one.

So, t = 0.22 s

This is approximately 0.2 s

7 0

4 years ago

Explain Ionic and Covalent bonding..

Elis [28]

Ionic bonding is a type of chemical bonding that involves the electrostatic attraction between oppositely charged ions, and is the primary interaction occurring in ionic compounds.A covalent bond, also called a molecular bond, is a chemical bond that involves the sharing of electron pairs between atoms. These electron pairs are known as shared pairs or bonding pairs, and the stable balance of attractive and repulsive forces between atoms, when they share electrons, is known as covalent bonding.

7 0

4 years ago

If the position of a body is 3 m, 6 m, 9 m, 12 m at instants 2 s, 4 s, 6 s

mariarad [96]

Answer:

1.5m/s

Explanation:

5 0

3 years ago

Read 2 more answers

A wire 3.22 m long and 7.32 mm in diameter has a resistance of 11.9 mΩ. A potential difference of 33.7 V is applied between the

Scorpion4ik [409]