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disa [49]
3 years ago
12

Consider a situation where the acceleration of an object is always directed perpendicular to its velocity. This means that

Physics
1 answer:
Bond [772]3 years ago
7 0

Answer:

this situation would not be physically possible

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How is a transverse wave different than a longitudinal wave?
CaHeK987 [17]
In a longitudinal wave, the motion of the medium is parallel to the direction of the wave.

A transverse wave is a wave in which the motion of the medium is a right angles to the direction of the wave.
6 0
3 years ago
If a ball is rolling at a velocity of 1.5 m/sec and has a momentum of 10.0 kg·m/sec, what is the mass of the 
AlladinOne [14]
Momentum = (mass) x (speed)

10 kg-m/sec = (mass) x (1.5 m/s)

Divide each side by  1.5 m/s :

Mass =  10 kg-m/sec / 1.5 m/s  =  <em>(6 and 2/3) kg</em>
4 0
3 years ago
A mine car, whose mass is 440kg, rolls at a speed of 0.50m/s on ahorizontal track, as the drawing shows. A 150kg chunk of coalha
ella [17]

Answer: 0.56 m/s

Explanation:

hello, there is 25° inclination angle for the chute in the drawing. Thankfully, I know this problem. The conservation of momentum.

so there are X and Y components for the momentum in this problem. The Y component is not conserved as when the coal gets in the cart, the normal force exerted by the surface reduces it to 0.

Now, the X component is definitely conserved here.

so you have the momentum of the cart which is 440*0.5 added to the momentum of the chunk which is 150*0.8*cos(25°), that is the momentum before the coupling between the objects. Afterwards both objects will have the same velocity, so we write the equation like this:

440*0.5 + 150*0.8*cos(25) = 440*v_{final} + 150*v_{final} \\ => 220+120*cos(25) = (440+150)v_{final} => v_{final} = \frac{220+120*cos(25)}{590}  = 0.56 m/s

3 0
3 years ago
Please help me this is a test and it needs to be done in a few​
Amanda [17]

Answer:

I think A because astroids are stronger than a crash. Hope I helped! :)

Explanation:

7 0
4 years ago
Read 2 more answers
Plz help i really need this
ddd [48]

Answer:

The reactivity of metals increases as you move left in a period and as you move down in a group, so Marie needs to know the period and group of the element inside each box. Boxes that show locations in groups 1 or 2 or in period 8 contain the most reactive elements.

Explanation:

6 0
3 years ago
Read 2 more answers
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