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BabaBlast [244]
3 years ago
9

A car moves with an average speed of 45 miles/hour. How long does the car take to travel 90 m

Physics
2 answers:
STALIN [3.7K]3 years ago
8 0
It would take 2 hours
Annette [7]3 years ago
6 0
B is the right answer
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balls a, with a mass of 20 kg, is moving to the right at 20 m/s. At what velocity should Ball B, with a mass of 40 kg, move so t
Leya [2.2K]
In that case, their momentum must be equal. 
So, m1v1 = m2v2
20 * 20 = 40 * v2
v2 = 400 / 40
v2 = 10

In short, Your Answer would be: 10 m/s

Hope this helps!
3 0
3 years ago
1pt If the room is the frame of reference for the study of an object moving in three dimensions, from where should distances be
oksian1 [2.3K]

Answer:

Option B, two walls and the floor

Explanation:

The distance should be measured from the point where at least the three axed meet.

Two walls and the floor are equivalent to three axes.

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Thus, the distance should be measured from the point where two walls and one floor meet.

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5 0
3 years ago
I Require Help on this Physics Question, I made an attempt at answering but I just have no idea.
Mashutka [201]

Answer:

It traveled 24 centimeters

Explanation:

The displacement of the object is equal to the area under the velocity vs time graph.

We can split this graph into two shapes, a triangle and a rectangle.  So the total area is:

A = ½bh + wh

A = ½ (4 s − 0 s) (4 cm/s) + (8 s − 4 s) (4 cm/s)

A = 8 cm + 16 cm

A = 24 cm

5 0
3 years ago
Jamie has a mass of 35kg what is her weight on earth in newtons
nevsk [136]
Gravity on Earth = 10N/Kg
10N/Kg * 35Kg =350N
8 0
3 years ago
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yulyashka [42]

Answer:

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3 years ago
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