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Pavlova-9 [17]
3 years ago
12

In the illustration, which two simple machines are being used to enable the student to reach the door?

Physics
2 answers:
lisov135 [29]3 years ago
4 0
The answer will be D the wheel and axle her wheel chair and the ramp is the inclined plane.
vodka [1.7K]3 years ago
3 0
D. wheel-and-axle AND an incline plane
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dezoksy [38]

You just have to simpy add the vectors together.  Draw a picture to help you.  Your verticle run is a vector that has a magntiude of 22m along the x axis with an angle of 0, and your climb has is a vector with a magnitude of 4.8 along the y axis and an angle of 90 degreed with respect to the x axis therefore add all of the x components and y components.  you will find that the resultant vector has a xcomponent of 22m and a y component of 4.8m so draw a graph the point will be (22,4.8) and then you can simply measure the angle.

7 0
3 years ago
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Can someone please help me think of an idea for this. My teacher wants me to think of a gadget that uses two simple machines, an
ohaa [14]
A dishwasher and a dryer im not sure if that is right but that’s what I would put
8 0
2 years ago
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What do we call a change in the car’s speed or direction?<br><br><br> Help!!
zhuklara [117]
The answer for this question is acceleration
8 0
3 years ago
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A child sleds down a hill with an acceleration of 2.94 m/s2. If her initial speed is 0.0 m/s and her final speed is 17.5 m/s, ho
hram777 [196]

Answer:

The child will take 5.952 seconds to travel from the top of the hill to the bottom.

Explanation:

Given that the child accelerates uniformly and that both initial (v_{o}) and final speeds (v_{f}), measured in meters per second, and acceleration (a), measured in meters per square second, are known, we proceed to use the following kinematic equation to determine the time taken to travel from the top of the hill to the bottom (t), measured in seconds, is:

t = \frac{v_{f}-v_{o}}{a} (1)

If we know that v_{o} = 0\,\frac{m}{s}, v_{f} = 17.5\,\frac{m}{s} and a = 2.94\,\frac{m}{s^{2}}, then the time taken is:

t = \frac{17.5\,\frac{m}{s}-0\,\frac{m}{s} }{2.94\,\frac{m}{s^{2}} }

t = 5.952\,s

The child will take 5.952 seconds to travel from the top of the hill to the bottom.

8 0
3 years ago
A cube has sides of 11.4 cm. What is its volume? 1,482 cm3 130 cm3 1,443 cm3 34.2 cm3
viktelen [127]
The Volume of a Cube with a side(s) of 11.4 cm is 

<span>V = s^3 </span>
<span> V = (11.4)^3 cm^3 </span>
<span> V = 1481.544 cm^3 </span>
<span> V = 1482 cm^3</span>

<span>however the Surface Area of a cube is the combined area of all the sides </span>
<span> A = 6s^2 </span>
<span> A = 6(11.4)^2 cm^2 </span>
<span> A = 779.76 cm^2 </span>
4 0
2 years ago
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