3 years ago

A bowling ball collides with a pin, knocking it over. The ball continues to move

Physics

1 answer:

kicyunya [14]3 years ago

7 0

Answer:

idk

Explanation:

idk

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A length of copper wire has a resistance 44 Ω. The wire is cut into three pieces of equal length, which are then connected as pa

WINSTONCH [101]

Answer:

$\frac{R}{1} = \frac{44}{9}\ohm$

Explanation:

Let us imagine that there are three wire of length equal length having equal resistances each of 44/3 Ω

Now connect these wires in parallel to so that their equivalent resistance is R.

then

$\frac{1}{R} = \frac{1}{R_1}+\frac{1}{R_2}+\frac{1}{R_3}$

$\frac{1}{R} = \frac{3}{44}+\frac{3}{44}+\frac{3}{44}$

$\frac{1}{R} = \frac{9}{44}$

⇒ $\frac{R}{1} = \frac{44}{9}\ohm$

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2 years ago

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When you hold a frozen banana treat in your hands, which statement BEST describes what is taking place? A. Heat is flowing from

Andrej [43]

Answer:

The answer is A

Explanation:

It is A because your body heat is warmer than the banana and when you hold it the heat is transferring over.

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3 years ago

A 10 kg blue cart moving to the right at 25 m/s collides with a 17 kg red cart moving in the opposite direction at 16 m/s. If, a

scoray [572]

Answer:

24.8m/s

Explanation:

Given data

m1= 10kg

u1=25m/s

m2=17kg

u2=16m/s

v1=10m/s

v2=??

Applying the conservation of linear momentum

m1u1+m2u2=m1v1+m2v2

substitute

10*25+17*16=10*10+17*v2

250+272=100+17v2

522=100+17v2

522-100=17v2

422=17v2

Divide both sides by 17

v2= 422/17

v2= 24.8 m/s

Hence the velocity of the red cart is 24.8m/s in the opposite direction of the blue cart

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2 years ago

In which situations is elastic potential energy present? Check all that apply. A bow is drawn back from its equilibrium position

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1,4,6
a bow is drawn back
a gun is loaded w/ a dart
a bungee cord is stretched

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3 years ago

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A 2-kg book falls off a shelf. It hits a student traveling 2 m/s. How much kinetic energy does the book have?

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4 J

1/2 mv^2 is ke formula

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3 years ago