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kaheart [24]
2 years ago
5

It takes at least 4 people to push a refrigerator up a 10-meter ramp. How many people would be needed to push the same refrigera

tor to the same height using a 20-meter ramp? (Assume no friction for both ramps. )
Physics
1 answer:
vaieri [72.5K]2 years ago
8 0
Double the amount of people because the ramp went from 10-meter to 20-meter, so times by 2. 4 times 2 is 8.
The answer is 8 people.
Hope this helps!
Please give Brainliest!
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PLEASE HELP ASAP!!!!!
Damm [24]

I believe the answer is resonance

6 0
3 years ago
Give an example of a situation in which you would describe an object's position in
notka56 [123]
Incomplete question.  Full text is:

"<span>Give an example of a situation in which you would describe an object's position in (a) one-dimension coordinates (b) two-dimension coordinates (c) three-dimension coordinates"

Solution
(a) One dimension example: a man walking along a metal plank. We just need to specify one coordinate, the distance from the beginning of the plank.

(b) Two-dimension example: a ball moving on a circle. In this case, we need two coordinates: (x,y) to specify the position of the ball at every instant, since it is moving on a 2-D plane.

(c) The position of an airplane in the air: in this case we need 3 coordinates, the height, the latitude and the longitude of the airplane.</span>
8 0
3 years ago
Why does ice float in your drink but, your sunglasses sink in the pool?
kykrilka [37]

Answer:

cause Ice is lighter than sunglasses

4 0
3 years ago
DOUBLE POINTS AND BRAINLIEST ANSWER PLEASE THIS IS VERY IMPORTANT FOR UNIT TEST TOMORROW for each of these diagrams in the pictu
Anni [7]
Maybe nobody ever mentioned it to you, but it turns out that
current is another one of those things that's always conserved ...
it can't created or destroyed, just like energy and mass. 

The total current in a circuit is always the same, but it can get
split up and travel through different paths for a while.

<span>==>  The total current is just the amount of current
         that's flowing in
and out of </span><span>the battery.

Diagram #1).
</span>The total current coming out of the battery is 15 A.
That current is going to split up when it reaches the resistors.
   Part of it will flow through each resistor, but both of them
   will still add up to  15 A .
You have  9 A  flowing through one resistor.
So the current in the other resistor is  (15 - 9)  =<span>  6 A.

Diagram #2).
</span>The total current coming out of the battery is 10 A.
That current is going to split up when it reaches the resistors.
   Part of it will flow through each resistor, but all of them
   will still add up to  10 A .
You have  2.5 A  through one resistor and  3.5 A through another one.
So the amount left for the last resistor is  (10 - 2.5 - 3.5)  =<span>  4 A.</span>
8 0
3 years ago
Properties of helium
postnew [5]

Answer:

Helium has many unique properties: low boiling point, low density, low solubility, high thermal conductivity and inertness, so it is use for any application which can explioit these properties. Helium was the first gas used for filling balloons and dirigibles

7 0
3 years ago
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