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maw [93]
3 years ago
12

Which is a compound machine?

Physics
2 answers:
yarga [219]3 years ago
7 0

Out of the answer choices on edginuity

A) a broom

B) a screwdriver

C) a slide

D) a pair of scissors

I would say it would be the pair of scissors because of the two blades and a wedge.

remember ΩVega

M8

Dafna1 [17]3 years ago
5 0
Compound machine<span>. A </span>machine<span> consisting of two or more simple </span>machines<span> operating together, as a wheelbarrow consisting of a lever, axle, and wheel.</span>
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Which statements describe the image produced by a concave lens?check all that apply.
kotegsom [21]

<em>Answer:</em>

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4 years ago
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The car will gain new momentum if it's velocity is doubled or tripled.
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4 years ago
Pls do question 1 part d). tysm
Aneli [31]

Answer:

c

Explanation:

cuz its informing the length of 5 and weight on 20N

5 0
3 years ago
A 0.750 kg block is attached to a spring with spring constant 13.0 N/m . While the block is sitting at rest, a student hits it w
trapecia [35]

To solve this problem we will apply the concepts related to energy conservation. From this conservation we will find the magnitude of the amplitude. Later for the second part, we will need to find the period, from which it will be possible to obtain the speed of the body.

A) Conservation of Energy,

KE = PE

\frac{1}{2} mv ^2 = \frac{1}{2} k A^2

Here,

m = Mass

v = Velocity

k = Spring constant

A = Amplitude

Rearranging to find the Amplitude we have,

A = \sqrt{\frac{mv^2}{k}}

Replacing,

A = \sqrt{\frac{(0.750)(31*10^{-2})^2}{13}}

A = 0.0744m

(B) For this part we will begin by applying the concept of Period, this in order to find the speed defined in the mass-spring systems.

The Period is defined as

T = 2\pi \sqrt{\frac{m}{k}}

Replacing,

T = 2\pi \sqrt{\frac{0.750}{13}}

T= 1.509s

Now the velocity is described as,

v = \frac{2\pi}{T} * \sqrt{A^2-x^2}

v = \frac{2\pi}{T} * \sqrt{A^2-0.75A^2}

We have all the values, then replacing,

v = \frac{2\pi}{1.509}\sqrt{(0.0744)^2-(0.750(0.0744))^2}

v = 0.2049m/s

7 0
3 years ago
PLEASE HELP ASAP!!
Stells [14]

Its B: reduce the amount of energy needed to do the work by putting the work onto something else

3 0
3 years ago
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