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Elza [17]
2 years ago
12

Hello people ~

Physics
1 answer:
Novosadov [1.4K]2 years ago
3 0

Answer:

Copper

Explanation:

Capacitance is directly proportional to dielectric constant

Aluminium and zinc are highly reactive and have high dielectric contact.

Copper has less dielectric constant hence capacitance will decrease

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Bucket?
Sergio039 [100]

Final velocity=2m/s  

kinetic energy lost = 96J

Explanation:

This question is an example for total inelastic collision.

For this type of collision, the equation is,

Step1: Finding the velocity

m1v1+m2v2 =(m1+m2) vfm_1v_1+m_2v_2 =(m_1+m_2) v_f

4*8+12*0 = (4+12)v

32 = 16v

v= frac{32}{16} = 2m/s

Step 2:Finding the kinetic energy

Kinetic energy = \frac{1}{2}\times mv^2

\text{Kinetic Energy before collision} = \frac{1}{2} m_1v_1^2+\frac{1}{2}m_2v_2^2

Kinetic Energy before collision=\frac{1}{2}\times4\times8^2+\frac{1}{2}\times12\times0^2

Kinetic Energy before collision= 128J

\text{Kinetic Energy after collision} = \frac{1}{2} m_1v_1^2+\frac{1}{2}m_2v_2^2

\text{ Kinetic Energy after collision}= \frac{1}{2}\times4\times2^2+\frac{1}{2}\times1\times*2^2

Kinetic Energy after collison= 32J

Step 3: Finding the kinetic energy lost

Kinetic Energy lost = Kinetic Energy after collision – Kinetic Energy before collision

Kinetic energy lost=128 -32

Kinetic energy lost=96J

4 0
3 years ago
The 500 series bullet train travels between Tokyo and Hakata, Japan. If it is heading north with a momentum of 13,194,098.64 kg
Hitman42 [59]

Answer:

The mass of the 500 series bullet train is 181.4 tonnes.

Explanation:

The momentum is given by:

p = mv

Where:

m: is the mass =?

v: is the velocity = 261.8 km/h

p: is the momentum = 13194098.64 kg*m/s

By solving the above equation for "m" we have:

m = \frac{p}{v} = \frac{13,194,098.64 kg*m/s}{261.8 km/h*\frac{1000 m}{1 km}*\frac{1 h}{3600 s}} = 181.4 tonnes

Therefore, the mass of the 500 series bullet train is 181.4 tonnes.

I hope it helps you!                

5 0
3 years ago
A beam of light has a wavelength of 506 nanometers. What is the frequency of the light? What colors is the light?
Mila [183]
<span>Beam Light wavelength = 506 nanometer
Frequency of light = F
The color of light = L

To fine the electromagnetic field:
=> S = wavelength x Frequency
Frequency = (3 x 10^8) / (5.06 x 10^ -7)
F = 5.96 x 10^14 Hz

According to the visible light spectrum, wavelength from 495 to 570 is equals to the color of green. Since the given wavelength is 506, thus, the color of light is green.

F = 5.96 x 10^14 Hz
L = green</span>



8 0
3 years ago
How can a compass be used to find north?​
padilas [110]
A compass will always point north when placed on a flat surface.
8 0
3 years ago
50 point!! Will mark brainliest!! (Please help)
jok3333 [9.3K]

What is the variable?

~<em>the</em><em> </em><em>price</em><em> </em><em>is</em><em> </em><em>the</em><em> </em><em>variable</em><em>.</em>

What happens to demand?

~It'll go down. Since the price of snow blowers will increase then the quantity demanded will go down.

Hope this helps- have a good day bro cya)

4 0
3 years ago
Read 2 more answers
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