3 years ago

The shape of the orbit for most comets is a(n): circle parabola ellipse oval

Physics

1 answer:

worty [1.4K]3 years ago

6 0

Answer:

Ellipse

Explanation:

Most comets have an elliptical path of orbit.

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A piston-cylinder device initially contains 0.08 m3 of nitrogen gas at 150 kPa and 200°C. The nitrogen is now expanded to a pres

Lemur [1.5K]

Answer:

$V_2 = 0.125 m^3$

Work done = = 5 kJ

Explanation:

Given data:

volume of nitrogen $v_1 = 0.08 m^3$

$P_1 = 150 kPa$

$T_1 = 200 degree celcius = 473 Kelvin$

$P_2 = 80 kPa$

Polytropic exponent n = 1.4

$\frac{T_2}{T_1} = [\frac{P_2}{P_1}]^{\frac{n-1}{n}$

putting all value

$\frac{T_2}{473} = [\frac{80}{150}]^{\frac{1.4-1}{1.4}$

$\frac{T_2} = 395.23 K = 122.08 DEGREE \ CELCIUS$

polytropic process is given as

$P_1 V_1^n = P_2 V_2^n$

$150\times 0.08^{1.4} = 80 \times V_2^{1.4}$

$V_2 = 0.125 m^3$

work done $= \frac{P_1 V_1 -P_2 V_2}{n-1}$

$= \frac{150 \times 0.8 - 80 \times 0.125}{1.4-1}$

= 5 kJ

4 0

3 years ago

Which one is made up of one or more molecules

zmey [24]

Ok so I already studied this and I realized it was water or also Oxygen

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3 years ago

A truck accelerates from a stop to 27m/sec in 9 minutes. What was the trucks acceleration?

olchik [2.2K]

The acceleration is 3 m/s per minute, or 0.05 m/s per second.

5 0

3 years ago

Mars has two moons. What does the orbital speed of these moons depend on?

Radda [10]

Answer:

their masses and their distances from Mars

Explanation:

Hope this helped

Also can u pls mark me brainliest

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3 years ago

What is the mass of an object if a force of 34 N produces an acceleration of 4.0 m/s squared

mrs_skeptik [129]

Answer:

8.5 kg

Explanation:

F = ma

34 N = m(4.0m/s^2)

m = 8.5 kg

6 0

2 years ago