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4 years ago

When multiple light waves overlap and cause patterns of bright and dark areas it is called wave ?

Physics

1 answer:

dmitriy555 [2]4 years ago

3 0

Answer: Interference

Explanation:

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g a 240 V<0 source source supplies a balance, three-phase load in a delta configuration. The line current is 3 A<45. What

amid [387]

Schoolegfnfabgsag hvbhgddscgh

8 0

3 years ago

The 10-kg block is held at rest on the smooth inclined plane by the stop block at A. If the10-g bullet is traveling at 300m/swhe

WARRIOR [948]

Answer:

6.8 mm

Explanation:

We are given that

Mass of block,m=10 kg

Mass of bullet, $m_b=10 g=10\times 10^{-3} kg$

1 kg=1000 g

Total mass of system,M= $m+m_a=10+10\times 10^{-3}=10.01kg$

Speed of bullet,u=300 m/s

$\theta=30^{\circ}$

By law of conservation of momentum

$m_bucos\theta=Mv$

$v=\frac{m_bvcos\theta}{M}=\frac{0.01\times 300cos30^{\circ}}{10.01}=0.259m/s$

According to law of conservation of energy

Change in kinetic energy of system=Change in potential energy of system

$\frac{1}{2}Mv^2-0=Mgh-0$

$\frac{1}{2}(10.01)(0.259)^2=10.01\times 9.8 h$

Where $g=9.8 m/s^2$

$h=\frac{(0.259)^2}{2\times 9.8}=0.0034m$

1m=100 cm

$h=0.0034\times 100=0.34 cm$

Distance traveled by block= $d=\frac{h}{sin\theta}=\frac{0.34}{sin30^{\circ}}=0.68 cm=6.8 mm$

1cm=10 mm

4 0

4 years ago

Show the molecular formula and electron structure of the simplest compound that forms with only carbon and hydrogen atoms.

zavuch27 [327]

The simplest compound of hydrocarbon is methane

The formula is CH_4
It belongs to alkane group and has single bonds.

The electron structure attached

3 0

2 years ago

solenoid is .3 m long and is wound with 2 layers of wire. the inner layer consists of 300 turns, the outer alyter of 250 turns.

Arisa [49]

Answer:

Explanation:

Magnetic field due to a solenoid

B = μ₀ nI where n is no of turns per unit length and I is current

for outer layer of turns

B = μ₀ x (250 / .3) x 3

= 4π x 10⁻⁷ x (250 / .3) x 3

= 3.14 x 10⁻³ T

for inner layer of turns

B = μ₀ x (300 / .3) x 3

= 4π x 10⁻⁷ x (300 / .3) x 3

= 3.77 x 10⁻³ T

Total magnetic field

= (3.14 + 3.77 ) x 10⁻³ T

= 6.91 x 10⁻³ T .

8 0

3 years ago

3. If I run 150m in 30 seconds, what speed will I have been running at?

Radda [10]

Answer:

speed = distance/time

Explanation:

speed = 150/30

speed =5m/s

you were running fast .....5m/s is a good speed

7 0

3 years ago