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yuradex [85]
4 years ago
12

“What are three ways that a cat pushing on a cat-flap door can change the amount of torque applied to the door?”

Physics
1 answer:
mixer [17]4 years ago
7 0
It depends on where the cat is applying the force and how much the force is .. after all where and at what is distance from the axis of rotation of the door
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A well-insulated cup of water is too hot to make tea, so you mixed it with an equal amount of cool water to lower the temperatur
KonstantinChe [14]

Answer:The change in entropy of the total amount of water is negative as a result of the mixing.

Explanation:If you increase temperature, you increase entropy

Also More energy gives you greater entropy and randomness of the atoms.

4 0
3 years ago
Can someone please help me with this
SashulF [63]
There’s no picture or question
3 0
3 years ago
A point charge of +1.0 µC is moved in the direction of an electric field, and it has a change in electric potential difference e
olga55 [171]
The answer of <span> the change in electric potential difference is</span> -1.0 × 10^7 V.  It is defined as  the work done per unit charge. A potential difference of 1 V means that 1 joule of work is done per coulomb of charge or  1 V = 1 J C-1.  
7 0
3 years ago
Outside the space shuttle, you and a friend pull on two ropes to dock a satellite whose mass is 700 kg. The satellite is initial
MaRussiya [10]

Answer:

your friend did a work of 1717.34 J

Explanation:

The sum of the work made by your friend and you is equal the change in the kinetic energy, so:

W_a+W_b=\frac{1}{2}mv_f^{2}-\frac{1}{2}mv_i^{2}

Where W_a is the work that you did, W_b is the work that your friend did, m is the mass of the satellite and v_f and v_i are the final and initial speeds

Additionally the work that you did is equal to:

W_a=F.s

Where F and s are vectors. So, the vector s that said the displacement is calculated as:

s = <2.3, 2.6, -11.8> - <3.3, -1.6, 2.0>

s = <-1 , 4.2 , -13.8>

Therefore, W_a is:

W_a=.

W_a=(-400*-1)+(500*4.2)+(250*-13.8)\\W_a=400+2100-3450\\W_a=-950

Then, replacing the values on initial equation and solving for W_b, we get:

-950+W_b=\frac{1}{2}(700)(6.18)^{2}-\frac{1}{2}(700)(6)^{2}\\-950+W_b=767.24\\W_b=767.24+950\\W_b=1717.34J

Finally, your friend did a work of 1717.34 J

3 0
3 years ago
A painter lifts a 3 kg can of paint 3 m above the floor. How much work was done?
Sindrei [870]

Hey there!


P= 3kg=3

W=m x g x d =3kg x 9 8 m/s² x 3m = 88J


Hope this helped you and solve your problem


TobeySnaps.

3 0
3 years ago
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