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meriva
3 years ago
7

Which statement is a description of boyle's law?The temperature and volume of a gas are directly proportional when pressure is c

onstant.
The temperature and volume of a gas are inversely proportional when pressure is constant.
The volume and pressure of a gas are directly proportional when temperature is constant.
The volume and pressure of a gas are inversely proportional when temperature is constant.
Physics
2 answers:
torisob [31]3 years ago
6 0
P and V are inversely proportional when temperature is constanst.
answer is the last option.


mel-nik [20]3 years ago
4 0

Answer: The correct answer is:

The volume and pressure of a gas are inversely proportional when temperature is constant.

Explanation:

Boyle's Law states that pressure of gas is inversely proportional to the volume of the gas at constant temperature in Kelvins.

P\propto \frac{1}{V}  (At constant temperature)

Where: P = pressure of the gas

V = Volume occupied by the gas

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a projectile leaves the ground with a velocity of 35 meters per second at an angle 32° what is the maximum height
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To determine the maximum height for the projectile, we can use the timeless kinematics equation V _{f} ^{2} -V_{i}^{2}=2a \Delta y and plug in what we know. For V _{f} ^{2}, we know it is zero because at the highest location of flight, there is no vertical velocity. For V _{i} ^{2}, we know it is (35sin(32))^{2} since the vertical component is the sine of the velocity. We need to solve for y, so it is left as-is. Since the only acceleration is g, we can substitute -9.81 into it. Solving for the equation yields a solution of 17.55 m for \Delta y.
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4 years ago
A train travels 90 kilometers in 1 hour, and then 82 kilometers in 5 hours. What is it’s average speed?
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Distance is 90km,time 1 hr
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3 years ago
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3 years ago
A 100-kg spacecraft is in a circular orbit about Earth at a height h = 2RE .
maria [59]

To solve this problem it is necessary to apply the concepts related to the conservation of the Gravitational Force and the centripetal force by equilibrium,

F_g = F_c

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Where,

m = Mass of spacecraft

M = Mass of Earth

r = Radius (Orbit)

G = Gravitational Universal Music

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Re-arrange to find the velocity

\frac{GM}{r^2} = \frac{v^2}{r}

\frac{GM}{r} = v^2

v = \sqrt{\frac{GM}{r}}

PART A ) The radius of the spacecraft's orbit is 2 times the radius of the earth, that is, considering the center of the earth, the spacecraft is 3 times at that distance. Replacing then,

v = \sqrt{\frac{(6.67*10^{-11})(5.97*10^{24})}{3*(6.371*10^6)}}

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From the speed it is possible to use find the formula, so

T = \frac{2\pi r}{v}

T = \frac{2\pi (6.371*10^6)}{4564.42}

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Therefore the orbital period of the spacecraft is 2 hours and 24 minutes.

PART B) To find the kinetic energy we simply apply the definition of kinetic energy on the ship, which is

KE = \frac{1}{2} mv^2

KE = \frac{1}{2} (100)(4564.42)^2

KE = 1.0416*10^9J

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Learn more about electrostatics: brainly.com/question/9774180

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