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Ratling [72]
3 years ago
7

A 30.0 kg object rests on a flat, frictionless surface. A rope lifts up on the object with a force of 309 N. What is the acceler

ation of the object?
Physics
1 answer:
saveliy_v [14]3 years ago
4 0
Total force = Frope - mg = 309-300
total force = ma
9 = 30a
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Why does a geostationary satellite must orbit around Earth's equator, rather than in some other orbit (such as around the poles)
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Answer:

A satellite on non-equatorial orbit would show daily motion even if its period is exactly 1 sidereal day.

Explanation:

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James and Juan were at the highest point in the football stadium, dropping water balloons on people below. Many of the balloons
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When you add more water to the balloon, it makes it heavier. Therefore it would weigh the balloon down ( increasing mass) and increasing the energy to plummet down. So the answer is B.
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Suppose the sphere is electrically neutral. Is it attracted to
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No, it is not attracted.

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3 years ago
A sample of gas has a volume of 215 cm3 at 23.5 °c and 84.6 kpa. what volume (cm3 will the gas occupy at stp
Dafna11 [192]
The answer is 165.3 cm³.

P1 * V1 / T1 = P2 * V2 / T2

The initial sample:
P1 = 84.6 kPa
V1 = 215 cm³
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At STP:
P2 = 101.3 kPa
V2 = ?
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Therefore:
84.6 * 215 / 296.5 = 101.3 * V2 / 273
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6 0
3 years ago
The wheels of an automobile are locked as it slides to a stop from an initial speed of 30.0 m/s. If the coefficient of kinetic f
Amiraneli [1.4K]

Answer:

  x = 76.5 m

Explanation:

Let's use Newton's second law at the point of contact between the wheel and the floor.

     fr = m a

     fr = miy N

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     a = miu g

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Having the acceleration we can use the kinematic relationships to find the distance

     v_{f}² = v₀² + 2 a x

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Acceleration opposes the movement by which negative

   x = - 30²/2 (-5.88)

   x = 76.5 m

8 0
3 years ago
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