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3 years ago

Please help with both questions thank you!

Physics

1 answer:

Katen [24]3 years ago

3 0

I think is:

(4)Inner core

(4)different Kingdome different species

hope this help :)

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Consider the two rotating pulley-like systems above. They are identical in every way EXCEPT the mass of the pulley on the left i

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Answer:

Consider the two rotating pulley-like systems above. They are identical in every way EXCEPT the mass of the pulley on the left is concentrated on the outside edge (ring or hoop shape), while the mass of pulley on the right is evenly distributed throughout the pulley (disc or cylinder shape). Given R =0.15m, M =0.6 kg, and m= 0.5 kg. Both pulley systems are initially at rest and the block masses are a height of 0. 8m above the ground.

Explanation:

If both masses are released at the same time, which pulley will hit the ground first

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3 years ago

Suppose that the speed of yellow visible light in a certain transparent medium is 2.01* 105 km/s. What, approximately, is the in

True [87]

Answer:

$1.50$

Explanation:

Index of refraction:

$n=\frac{c}{v}$ where $n$ is the refractive index, $c$ is the speed of light in vacuum and $v$ is the speed of light in medium.

The speed of light in vacuum is $3.00 \times 10^5 \text{km/s}$

Speed of light in medium is $2.01 \times 10^5 \text{km/s}$

Thus,

$n=\frac{3.00\times 10^5}{2.01\times 10^5}$

$n=1.50$

Index of refraction of this substance through yellow light is $1.50$

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3 years ago

Define instantaneous velocity

Anon25 [30]

Answer:

<h2><em><u>Instantaneous Velocity. The instantaneous velocity of an object is the limit of the average velocity as the elapsed time approaches zero, or the derivative of x with respect to t: v(t)=ddtx(t). v ( t ) = d d t x ( t ) . Like average velocity, instantaneous velocity is a vector with dimension of length per time.</u></em></h2>

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4 years ago

How often do industrial oxygen cylinders need to be tested

hjlf

Answer:

5 years

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3 years ago

A student runs a 400m race around the school track in 65 seconds. At the start of the race, the student accelerates to a speed o

taurus [48]

Answer:

2.7 m/s²

Explanation:

Average acceleration is change in velocity over change in time. Assuming the acceleration is constant, we can say it is equal to the average:

a = Δv / Δt

a = (6.0 m/s - 0 m/s) / 2.2 s

a ≈ 2.7 m/s²

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3 years ago