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mel-nik [20]
3 years ago
10

Light Bulb

Physics
1 answer:
Allushta [10]3 years ago
8 0

Answer:

In my opinion I think it's B I'm so sorry if I get this wrong

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BARSIC [14]

Only velocity uses direction of travel in its calculations.

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An object is projected with initial speed v0 from the edge of the roof of a building that has height H. The initial velocity of
Vsevolod [243]

Answer:

Explanation:

Initial velocity u = V₀ in upward direction so it will be negative

u = - V₀

Displacement s = H . It is downwards so it will be positive

Acceleration = g ( positive as it is also downwards )

Using the formula

v² = u² + 2 g s

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= V₀² + 2 g H .

v = √ ( V₀² + 2 g H )

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Jupiter has a mass of 1,898,000,000,000,000,000,000,000,000 kg. How would
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B.1.898^27 kg

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3 years ago
A certain shade of blue has a frequency of 7.15 × 1014 hz. what is the energy of exactly one photon of this light?
Ket [755]
The energy carried by a single photon of frequency f is given by:
E=hf
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E=(6.6\cdot 10^{-34}m^2 kg s^{-1})(7.15 \cdot 10^{14}Hz)=4.7 \cdot 10^{-19}J
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3 years ago
Which of the following is an example of acceleration?
Naddika [18.5K]

Answer:

c

Explanation:

When a satellite is orbiting the earth , a constant force is being applied on it which means it must has acceleration. Also the direction of satellite is always being changed when it is orbitting to there is always change in the velocity vector which means acceleration.

You can view in the attached diagram to understand how the velocity is being changed.

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3 years ago
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