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AleksAgata [21]

3 years ago

10

Which of the following was not a factor that got the public interested in NASA? A. real people B. scientific reports C. adventur

e D. competition

2 answers:

fomenos3 years ago

8 0

B. Scientific reports

Andrews [41]3 years ago

3 0

I think is <span> B. scientific reports
</span>

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I HAVE 5 MINUTES!!!!!! A block oscillating on the end of a spring moves from its position of maximum spring stretch to maximum s

Verdich [7]

Therefore, if the block moves from its position of maximum spring stretch to maximum spring compression in 0.25 s, the time required for a full cycle is twice as much; T = 0.5 s.

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2 years ago

Please answer!! need help!!

jarptica [38.1K]

Answer:

screw and pulley

Explanation:

because they didn't have any of the other tools in that time

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3 years ago

Suppose a yo-yo has a center shaft that has a 0.230 cm radius and that its string is being pulled.

Fofino [41]

Answer:

Part a)

$\alpha = 782.6 rad/s^2$

Part B)

$\omega = 587 rad/s$

Part c)

$a_t = 24.3 m/s^2$

Explanation:

Part a)

As we know that

$a = R \alpha$

so we will have

$a = 1.80 m/s^2$

$R = 0.230 cm$

$\alpha = \frac{a}{R}$

$\alpha = \frac{1.80}{0.230 \times 10^{-2}}$

$\alpha = 782.6 rad/s^2$

Part B)

Angular speed of the yo-yo

$\omega = \alpha t$

so we have

$\omega = 782.6 \times 0.750$

$\omega = 587 rad/s$

Part c)

Tangential acceleration is given as

$a_t = R \alpha$

$a_t = (3.10 \times 10^{-2})(782.6)$

$a_t = 24.3 m/s^2$

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3 years ago

a 2.00 kg object is moving east at 4.00 m/s when it collides with a 6 kg object that is initially at rest. after the collision t

baherus [9]

Answer:

v = 1.00 m/s east

Explanation:

Conservation of momentum

Let east be the positive direction

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v = 1.00 m/s east

The two items have stuck together.

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2 years ago

What is an example of 'Centre of Gravity'?

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Water bottle and a paper towel role

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3 years ago