2 years ago

A velocity-time graph shows how what changes over time.

Physics

1 answer:

Mnenie [13.5K]2 years ago

6 0

Answer:

velocity changes over time.

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yawa3891 [41]

Answer:

28.5 m/s

Explanation:

There are 2 different velocities: the train velocity and yours velocity. They're in opposite directions, so one is positive and other is negative. Take the forward direction as the positive:

V = +30 -1.5

V = 28.5 m/s

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2 years ago

The ____________is a metal retainer that keeps the rolling elements evenly spaced. N A. seal N B. separator N C. bearing N D out

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Explanation:

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From a cliff 37.6 m high. At the level of the sea, a rock sticks out a horizontal distance of 12.12 m. The acceleration of gravi

Aleks [24]

Answer:

4.3 m/sec

Explanation:

Here height of cliff = y = 37.6 m

Gravitational acceleration = g = 9.8 m/sec2

vi = 0 m/s

Let's find the time which the diver will take if jumps from there!

Using formula

y = vit+1/2gt2

==> 37.6= 0 + 0.5 ×9.8× $t^{2}$

==> $t^{2}$ = $\frac{37.6}{4.9}$

==> t = 2.8 sec

In this time the diver has to cover a horizontal distance of 12.12 m

If x = 12.12 m is the horizontal distance to be covered then using

x= Vx × t

==> Vx = x/t

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3 years ago

Bianca sends her brother Phineas an e-mail to invite him to dinner. In this scenario, what is the channel according to Shannon's

dusya [7]

The channel is whatever was used to carry information from
one place to another, or from one person to another.
In this scenario, the channel is e-mail.

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Answer:

the correct answer is the 60

$+ 20 + 60 \gamma \beta$

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