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3 years ago

How is momentum conserved in a system in which two satellites connect?

Physics

2 answers:

Zielflug [23.3K]3 years ago

7 0

Answer:

The one satellite has all the momentum before they connect, and then afterwards they share it.

Explanation:

I took the test and I got it correct.

Hope this helps! :)

STALIN [3.7K]3 years ago

4 0

I think the correct answer from the choices listed above is the first option. The one satellite has all the momentum before they connect, and then afterwards they share it. For a collision occurring between object 1 and object 2 in an isolated system, the total momentum of the two objects before the collision is equal to the total momentum of the two objects after the collision.

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A small block has constant acceleration as it slides down a frictionless incline. The block is released from rest at the top of

natita [175]

Answer:

2.58 m/s

Explanation:

We can use the following equation of motion to find out the constant acceleration of the block:

$v^2 - v_0^2 = 2a\Delta s$

where v = 3.8 m/s is the final velocity after it has traveled 7.4 m, $v_0 = 0$ is the initial velocity of the block when it starts from rest, , and $\Delta s = 7.4$ is the distance traveled.

$3.8^2 - 0 = 2*a*7.4$

$14.44 = 14.8a$

$a = 14.44 / 14.8 = 0.98 m/s^2$

We can use the same motion equation to calculate block speed at the end of 3.4m track

$v_2^2 - 0 = 2*0.98*3.4$

$v_2^2 = 6.63$

$v_2 = \sqrt{6.63} = 2.58 m/s$

6 0

3 years ago

Pluto has a shape that is nearly round, and it orbits the Sun. It has five known moons. Why is it called a dwarf planet and not

Vikentia [17]

Pluto has a shape that is nearly round, and it orbits the Sun. It has five known moons. It is called a dwarf planet and not a planet because its orbit is not cleared of like-sized or larger objects

Answer: Option B

Explanation:

According to the International Astronomical Union (IAU), Pluto has been mentioned as Dwarf Planet as it doesn't hold the standardisation to be counted as a Planet.

According to the standard criteria, a planet must have been surrounded by the orbit of the Sun, it must have significant mass to have a gravitational pull and hence, circular shape, and should have isolated surrounding.

But, Pluto has various celestial bodies in its vicinity that are larger in size. Hence, as concluded by the Union, any celestial body that does not has clear surrounding, is regarded as Dwarf Planet just like Pluto.

6 0

3 years ago

Find the equivalent resistance Req between terminals a and b if terminals c and d are open and again if terminals c and d are sh

adoni [48]

Answer:

351 ohm

720 ohm

Explanation:

When c and d are open:

Terminals c and d are open.. If you redraw the circuit as below, you can see that the two resistors in the first column are in parallel as, they are connected together at both pairs of terminals (due to the short).

Hence, we have a pair of parallel resistors:

Req1 = (R1*R2)/ (R1 + R2) = 360*540/(360+540) = 216 ohms

Req2 = (R3*R4)/ (R3 + R4) = 180*540/(180+540) = 135 ohms

Now these two sets are in series with another Hence,

Req = Req1 + Req2 = 216 + 135 = 351 ohms

Answer: 351 ohms

When c and d are shorted:

The current will flow through the least resistant path naturally from resistors R3 and R1 or R4.

Both of these resistor lie in a single path placing the resistors in series to one another, hence

Req = R3 + R1 = 180 + 540 = 720 ohms

Answer:720 ohms

7 0

3 years ago

What’s an example of contact friction

kotegsom [21]

Answer:

a nightstand on a lamp table

Explanation:

5 0

3 years ago

2. If a cyclist in the Tour de France traveled southwest a distance of 12,250 meters in one hour, what would the velocity of the

Luda [366]

Answer:

12,25 km/h

≈ 3,4 m/s

Explanation:

v = d/t

= 12250m/h

= 12,25km/h

or

v = d/t

= 12250m/h

1h = 60m×60s = 3600s

= 12250m/3600s

≈ 3,4 m/s

5 0

3 years ago