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Liono4ka [1.6K]
3 years ago
10

Ben helped his parents load boxes and furniture onto the moving truck. He easily carried several boxes out of the house and up a

ramp into the truck. Then loaded small pieces of furniture by pushing them up the ramp. Finally, Ben tried to move the refrigerator. He pushed and pushed, but it did not move. Why?
A) because the refrigerator was so tall
B) because there was no wheels on the refrigerator
C) because Ben was tired from moving the boxes and furniture
D) because the refrigerator was much heavier than the other objects
Physics
2 answers:
NikAS [45]3 years ago
5 0
D) because the refrigerator was much heavier than the other objects
almond37 [142]3 years ago
5 0

The answer is D I just took this test.   :)


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If Anya decides to make the star twice as massive, and not change the length of any crossbar or the location of any object, what
charle [14.2K]

Answer:

She will make the mass of the smiley face twice as massive in order to keep the mobile in perfect balance.

Explanation:

mass of an object is directly proportional to the cube of its length. In this case the length is constant, the mass will also be constant for the smiley face, so that the mobile will be kept in perfect balance.

Therefore, If Anya decides to make the star twice as massive, and not change the length of any crossbar or the location of any object, she will make the mass of the smiley face twice as massive in order to keep the mobile in perfect balance.

4 0
3 years ago
Describe and explain how the movement and arrangement of the particles in a block of ice change as the ice melts to form liquid
-BARSIC- [3]

Answer:

Ice is water in solid phase, in this phase, the particles are very close together and relatively in fixed positions.

As the temperature starts to increase (thermal energy), also does the kinetic energy of the particles (so we have a change from thermal energy to kinetic energy), so they start to move "more", and the position of the particles starts to be less "fixed". There is a point where the particles have enough energy, and this point is where the phase of the water changes from solid to liquid phase (the fusion point). After this point the water can not hold his shape, and takes the shape of the container where it is.

4 0
3 years ago
when 10 similar coins are dropped into a graduated cylinder from 75 ml to 100ml. what is average volume of each coin?​
Alex787 [66]

Explanation:

Volume of 10 coins = 100ml - 75ml = 25ml

Volume of 1 coin = 25ml / 10 = 2.5ml

The average volume of each coin is 2.5ml.

8 0
2 years ago
Read 2 more answers
Which branches of natural science include the study of an organism that lived 10 million years ago?
Verdich [7]

Analyzing the components and decay products of school lunches.

7 0
3 years ago
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A certain planet has an escape speed V. If another planet has twice the radius and twice the mass of the first planet, its escap
Ber [7]

Answer:

option A

Explanation:

Escape velocity of the planet

       v = \sqrt{\dfrac{GM}{R}}

now, it is given that

Second Planet

R₂ = 2R          and M₂ = 2M

now escape velocity of the second planet

now,

       v'= \sqrt{\dfrac{G(2M)}{(2R)}}

on solving

       v'= \sqrt{\dfrac{GM}{R}}

       v'= v

escape velocity of the second planet is equal to first.

The correct answer is option A

4 0
3 years ago
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