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sveta [45]
3 years ago
9

The mechanical advantage of a machine is always greater than 1. true or false

Physics
2 answers:
Alja [10]3 years ago
6 0
True mechanical advantage of a machine is always greater than
m_a_m_a [10]3 years ago
5 0

Answer:

False

Explanation:

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For a spring oscillating in simple harmonic motion, at what point will the velocity of
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Answer:

equilibrium position.

Explanation:

In simple harmonic motion , velocity v(t) is given by,

v(t) = -ω A sin(ωt + φ)

where

ω = angular velocity of the corresponding circular motion

A = amplitude

t = time

φ = the initial angle of the corresponding circular motion when the motion begin.

v (t) get maximized when sin value is maximized , i.e. sin \alpha=1

The particle has maximum speed when it passes through the equilibrium position.

6 0
4 years ago
A(n) 2602 kg van runs into the back of a(n)
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Answer:

8.5 m/s

Explanation:

please see paper for the work!

8 0
3 years ago
1. Why did Asteroid 2019 OK cause concern among scientists? * The asteroid was not detected until it was extremely close to Eart
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Answer:

<u>The asteroid was not detected until it was extremely close to Earth. </u>

Explanation:

According to data from NASA, the Asteroid named 'Astriod 2019 OK', was detected when it was extremely close to earth with just about an estimated distance of  73,000 kilometers  (45,000 miles) from the Earth.

Scientists were concerned at the proximity of this space object to the Earth before it was discovered, and it brought about a cause of concern that since it was not extremely large (estimated 57 to 130 meters wide) it creates a potential for other smaller asteroids to escape detection and struck the earth.

7 0
3 years ago
Two balls are at the same height and released at the same time. One ball is dropped and hits the ground 5s later. The 2nd ball i
ASHA 777 [7]

Answer:

The second ball hits at the same time.

Distance travelled is 65 meters

Explanation:

5 0
2 years ago
Which is another term for the free enterprise system
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Another term for free enterprise system would be capitalism

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