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patriot [66]
3 years ago
12

Ivan pushes a dresser with full drawers across his carpeted floor. What could Ivan do to reduce the amount of friction between t

he dresser and the floor?
Physics
2 answers:
kow [346]3 years ago
5 0
Well he could remove the drawers to make it lighter, which causes less friction
Rainbow [258]3 years ago
3 0

a & d is correct

Sorry Im late!

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If my science fair project is about if girls can see through illusions better than boys, what would my background research be ab
SCORPION-xisa [38]
Honestly you should switch it up to something better cause honestly all depends on how the person was raised or the backround of them 
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3 years ago
A 51.0 kg cheetah accelerates from rest to its top speed of 31.7 m/s. HINT (a) How much net work (in J) is required for the chee
andrey2020 [161]

(a) 2.56\cdot 10^4 J

The work-energy theorem states that the work done on the cheetah is equal to its change in kinetic energy:

W= \Delta K = \frac{1}{2}mv^2 - \frac{1}{2}mu^2

where

m = 51.0 kg is the mass of the cheetah

u = 0 is the initial speed of the cheetah (zero because it starts from rest)

u = 31.7 m/s is the final speed

Substituting, we find

W=\frac{1}{2}(51.0 kg)(31.7 m/s)^2 - \frac{1}{2}(51.0 kg)(0)^2=2.56\cdot 10^4 J

(b) 6.1 cal

The conversion between calories and Joules is

1 cal = 4186 J

Here the energy the cheetah needs is

E=2.56\cdot 10^4 J

Therefore we can set up a simple proportion

1 cal : 4186 J = x : 2.56\cdot 10^4 J

to find the equivalent energy in calories:

x=\frac{(1 cal)(2.56\cdot 10^4 J)}{4186 J}=6.1 cal

3 0
3 years ago
Suppose you sketch a model of an atom using the ones here as a guide. How would you build a model that is ionized? How would you
kap26 [50]

Answer:

Explanation:

An atom is constructed of three different particles known as electrons, protons and neutrons.

These particles have different mass and charges and are responsible for various characters than an atom posses.

An electron has a negative charge, a proton has positive charge and charge of neutron is neutral. Equal number of electrons and protons are present in an atom that make it electrically neutral but different conditions can occur if we remove these particles from an atom.

1 : Model of an ionized atom - an ionized atom is one which has some net charge on this. It can be either a positive charge or a negative charge.

If we need to sketch the model of an ionized atom then one should either keep the number of electrons less or proton.

2: Model of radioactive atom : A radioactive atom is one an unstable atom and has access of energy in its center. It can be caused by adding either neutrons or protons.

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3 years ago
Which would best describe what occurs when a ball is thrown against a wall
Minchanka [31]

It depends on how hard the ball is one and so if its hard it might put a dent in the wall depending on how the ball is thrown at the wall and how hard the ball is and like any other way or big and small and other ways you have to pay attention on how hard it is, how hard you threw it, and how big it is

6 0
4 years ago
Can someone help me
Nady [450]
The answer is D 10x21
7 0
3 years ago
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