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yaroslaw [1]
3 years ago
12

WILL GIVE BRAINLIEST AND 30 POINTS! NEED ASAP!

Physics
1 answer:
wel3 years ago
6 0

Answer:

Sample Response: The LED lightbulb is the most energy efficient because it loses the least amount of energy as heat.

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A car that increases its speed from 20 km/h to 100 km/h undergoes
Kamila [148]

Answer:

accelaration

Explanation:

3 0
3 years ago
If the inside of a container has a surface area of 20cm², what will be the pressure on each square inch of the container if 117.
egoroff_w [7]

Answer:

Explanation:

given :-

force applied = 117.6N

Area = 20 m^2

Pressure =?

solution:-

Pressure = Force / Area

= 117.6 N / 20 m^2

= 5.88 Pascals

Hope it helps :D!

Explanation:

6 0
2 years ago
Describe how to use a reference point and a set of reference directions to define the position of an object.
tatiyna
Thank you for posting your questions here at brainly. Beginning at the corner of the floor where the lamp is standing, the dog's head is at a point which is -- 6 feet along the wall towards the kitchen door -- 4 <span>feet across the room towards the garage -- 2 feet up off the floor</span>
7 0
3 years ago
Read 2 more answers
An electromagnetic wave in a vacuum traveling in the +x direction generated by a variable source initially has a wavelength λ of
djverab [1.8K]

Answer:

B = E/c = 14.04T₁ = 11 pT

Explanation:

We know c = E/B where E = maximum electric field = 3.30 × 10⁻³ V/m, B = maximum magnetic field and c = speed of light

B = E/c also c = fλ = λ/T where λ = wavelength = 235 μm = 235 × 10⁻⁶ m and T = period

c = λ₁/T₁ = λ₂/T₂    T₂ = 2.8T₁ where λ₁,λ₂ are the initial and final wavelengths and T₁,T₂ are the initial and final periods.

T₁ =  λ₁/c = 235 × 10⁻⁶ m/3 × 10⁸ m/s = 7.833 × 10⁻¹³ s = 0.7833 ps

T₂ = 2.8T₁ = 2.8 × 7.833 × 10⁻¹³ s = 21.93 × 10⁻¹³ s = 2.193 ps

λ₁/T₁ = λ₂/2.8T₁

λ₂ = 2.8λ₁ = 2.8 × 235 μm = 658 μm

c = λ₂/T₂ = 2.8λ₁/2.8T₁ = λ₁/T₁ , since the speed of light c is constant.

B = E/c = E/λ₁/T₁ = ET₁/λ₁

B = ET₁/λ₁ = 3.30 × 10⁻³ V/m × T₁/235 × 10⁻⁶ m = 14.04T₁  Tesla

B = 14.04 × 7.833 × 10⁻¹³ s = 10.99 × 10⁻¹² T ≅ 11 pT

5 0
4 years ago
Which quantity is measured in newton seconds (Ns)?
pshichka [43]

Answer:

Impulse

Explanation:

Impulse is force times time

7 0
3 years ago
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