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dedylja [7]
2 years ago
7

X x 2.5 N 1.7 N 2.5 N

Physics
1 answer:
Olin [163]2 years ago
6 0

Answer:

2.5*1.7/2.5

Explanation:

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6. A plane took 3.55 hours to complete its flight. If the distance of the flight was 2840 kilometers, at what average speed did
ivann1987 [24]

Answer:

The average speed is 10,082

Explanation:

Do the formula

Distance * time = speed

2840 * 3.55

= 10,082

4 0
3 years ago
Which type of seismic wave can only pass through the earths mantle?
mezya [45]
Secondary wave is the answer 

6 0
3 years ago
A 10.0-g bullet moving at 300 m/s is fired into a 1.00-kg block at rest. the bullet emerges (the bullet does not get embedded in
sesenic [268]
Momentum before the hit:
p = mv = 0.01 * 300 + 1 * 0 

Momentum after the hit:
p = 0.01 * 150 + 1 * v

Momentum is conserved:
0.01 * 300 = 0.01 * 150 + v 
3 = 1.5 + v
v = 1.5

The velocity of the block after the collision is 1.5 m/s.
7 0
3 years ago
If a car is traveling at an average speed of 60 kilometers per hour, how long does it take to travel 12 kilometers?
Otrada [13]

Answer: 0.2 hour

Explanation:

Speed = Distance / Time

Time = Distance / Speed

= 12/60

= 0.2 hour

8 0
3 years ago
Would you expect to observe every supernova in our own Galaxy? Why or why not?
Taya2010 [7]

Explanation:

Only few supernova are observed in our galaxy -

Type II supernovae ( i.e. the explosions of the massive stars ) occurred in the Milky Way, and they might be hidden by the intervening dust if they are located in the more distant parts of our Galaxy .

Type Ia supernovae , which need a white dwarf star in the binary star system , are brighter than the type II supernovae , but some of them could also happen in the older parts of Galaxy which are hidden due to the buildup of the dust and gas .

3 0
2 years ago
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