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3 years ago

Einstein developed much of his understanding of relativity through the use of gedanken, or thought, experiments.

Physics

2 answers:

miskamm [114]3 years ago

7 0

True is the correct option to the question

Zielflug [23.3K]3 years ago

6 0

True. Thought experiments are what he called them, it’s like meditation

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Which of the following accurately describe some aspect of gravitational waves? Select all that apply. (A) Gravitational waves co

crimeas [40]

Explanation :

The points regarding the gravitational waves are as follows :

(1) Gravitational waves are predicted to travel through space at the speed of light. So, the speed of gravitational waves is also equals $c=3\times 10^8\ m/s$ .

(2) The first direct detection of gravitational waves came in 2015. It is detected using a advanced LIGO detectors.

(3) The existence of gravitational waves is predicted by Einstein's general theory of relativity.

Hence, the correct options are (B), (D) and (E).

4 0

3 years ago

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An ambulance is currently traveling at 15m/s, and is accelerating with a constant acceleration of 5 m/s^2. The ambulance is atte

Lorico [155]

initial velocity=15m/s=u
Acceleration=a=5m/s^2
Final velocity=v=30m/s
Distance be s

Using 3rd equation of kinematics

$\\ \rm\longmapsto v^2-u^2=2as$

$\\ \rm\longmapsto s=\dfrac{v^2-u^2}{2a}$

$\\ \rm\longmapsto s=\dfrac{30^2-15^2}{2(5)}$

$\\ \rm\longmapsto s=\dfrac{900-225}{10}$

$\\ \rm\longmapsto s=\dfrac{675}{10}$

$\\ \rm\longmapsto s=67.5m$

5 0

3 years ago

1: Solve for acceleration. Write the units of your answer next to the number

aleksandrvk [35]

1. 7.1111m/s Recurring
Solution a = v/t basically divide the velocity by the time taken
2. 9.375m/s
Same solution as before

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3 years ago

Orange light of wavelength 0.61 µ m in air enters a block of glass with εr = 1.44. What color would it appear to a sensor embedd

77julia77 [94]

Answer:

$0.5083\ \mu m$

Explanation:

$\lambda_0$ = Actual wavelength = $0.61\ \mu m$

$\varepsilon_r$ = Relative permittivity = 1.44

The observed wavelength in the glass is given by

$\lambda=\dfrac{\lambda_0}{\sqrt{\varepsilon_r}}\\\Rightarrow \lambda=\dfrac{0.61}{\sqrt{1.44}}\\\Rightarrow \lambda=0.5083\ \mu m$

The wavelength lies in the range of green light.

Hence, the observed color of light is $0.5083\ \mu m$

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3 years ago

Which of the following exhibits parabolic motion?

harina [27]

Parabolic Motion<span> of Projectiles. A projectile is an object upon which the only force is gravity. Gravity, being a downward force, causes a projectile to accelerate in the downward direction.

So I would say that the best answer provided is C. a leaf falling from a tree because the downward force of gravity causes the leaf to accelerate in the downward direction</span>

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4 years ago