3 years ago

Put a ball on the floor what forces are acting on it

Physics

1 answer:

In-s [12.5K]3 years ago

8 0

Answer: Gravity

Explanation: Gravity is pulling down on the ball, making it stay on the floor

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A solid ball has a radius of 2cm and a length of 7cm. It has a density of 3.1g/cm3

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Density is mass divided by volume, you would have to solve for the volume of the ball and rearrange the equation to density divided by volume equals mass

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3 years ago

A Carnot engine operates between reservoirs at 600 and 300 K. If the engine absorbs 100 J per cycle at the hot reservoir, what i

PIT_PIT [208]

Answer:

W =50 J

Explanation:

given data:

T_h=600 k

T_L=300 k

Q_h=100 J

required:

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║W║=║Q_h║(1-T_L/T_h)

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2 years ago

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Find the volume of a rectangular prism that is 8m long, 4m wide, and 300cm high

konstantin123 [22]

L=8m
B=4m
H=300cm=3m

$\\ \bull\tt\longmapsto Volume=LBH$

$\\ \bull\tt\longmapsto Volume=8(4)(3)$

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An object of mass m is traveling in a circle with centripetal force Fc. If the velocity of the object is v, what is the radius o

borishaifa [10]

Hi there!

Recall the equation for centripetal force:
$F_c = \frac{mv^2}{r}$

We can rearrange the equation to solve for 'r'.

Multiply both sides by r:
$r * F_c = mv^2$

Divide both sides by Fc:
$\boxed{ r= \frac{mv^2}{F_c}}$

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A boy is exerting a force of 70 N at a 50-degree angle on a lawn mower. He is accelerating at 1.8 m/s2. Round the answers to the

Maksim231197 [3]

25 kg and 299N are the answers

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3 years ago

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