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UNO [17]
3 years ago
14

Kepler's second law, which states that as a planet moves around its orbit it sweeps out equal areas in equal times, means that K

epler's second law, which states that as a planet moves around its orbit it sweeps out equal areas in equal times, means that planets that are farther from the Sun move at slower average speeds than nearer planets. the period of a planet does not depend on its mass. a planet's period does not depend on the eccentricity of its orbit. a planet travels faster when it is nearer to the Sun and slower when it is farther from the Sun. planets have circular orbits.
Physics
1 answer:
erastovalidia [21]3 years ago
3 0

Explanation:

not physics tho??? idkkkkkkkkk sorrrryyyyyy

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A metal container with the oil weigh
MA_775_DIABLO [31]

Answer:

16 kg

Explanation:

M - container

m - oil mass

by definition of density ,

relative density is the ratio of the density of a substance to the density of water.

relative density = density/ density of water

density of oil = 1.2*1000 kgm⁻³  = 1200 kgm⁻³

1 Litre =10⁻³ m³

oil volume = 80 *10⁻³ m³

mass of oil = density * volume

                   = 1200*80*10⁻³

                   = 96 kg

Mass of container + mass of  oil =112

mass of container = 112 - 96

                              = 16 kg

7 0
3 years ago
A train 471 m long is moving on a straight track with a speed of 75.1 km/h. The engineer applies the brakes at a crossing, and l
hram777 [196]

Answer:

t = 37.6 s

Explanation:

As we know that train is initially moving with the speed

v_i = 75.1 km/h

now we know that

v_i = 20.86 m/s

now the final speed of the train when it crossed the crossing

v_f = 15 km/h

v_f = 4.17 m/s

now we can use kinematics here

v_f^2 - v_i^2 = 2 a d

4.17^2 - 20.86^2 = 2 a(471)

a = -0.44 m/s^2

Now the time to cross that junction is given as

v_f - v_i = at

4.17 - 20.86 = a(-0.44)

t = 37.6 s

4 0
2 years ago
How can a karate expert break a concrete block
FinnZ [79.3K]

Many ways, but some of the most famous are kicks (side, back, front, snap) or a smash.

Hope it helped! :)

8 0
3 years ago
A uniform bar 12 m long has a mass 20 kg. A 10 kg pointed mass is attached to one end of the rod. Now the position of COM of the
user100 [1]

Answer:

.

Explanation:

/

7 0
3 years ago
What statement is true according to newton’s first law of motion?
Airida [17]

Answer:

  c.  in the absence of an unbalanced force, an object at rest will stay at rest and an object in motion will stay in motion.

Explanation:

First law: things keep doing what they are doing, unless force is applied.

5 0
3 years ago
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