The pressure of the air inside the balloon is higher than outside, and when you pop the balloon, the high pressure air expands quickly and makes a popping sound.

6 0

2 years ago

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Your car is stalled in the middle of a large patch of ice (assumed to be frictionless). You have a friend that has thrown a rope

Gnoma [55]

Answer:

The time depends on the distance that they have to travel

$x(t) = \frac{0.3846t^{2} }{2}$

Explanation:

The only horizontal force exerts over the car and you, it is the force that your friend is applied

Newton's Second Law of Motion defines the relationship between acceleration, force, and mass, thus

$\sum{F} = ma$

550 = 1430a

a = 0.3846 m/s2

The car and you have a motion under constant acceleration, then theirs position to a time-based is:

$x(t) = x_{0} + v_{0}t +\frac{at^{2} }{2}$

By the initial conditions

$x(t) = \frac{at^{2} }{2}$

$x(t) = \frac{0.3846t^{2} }{2}$

The time depends on the distance that they have to travel

7 0

3 years ago

which of these is a unit of measurement for volume? a.gram b.centimeterc.cubic centimeter d.square centimeter

mixas84 [53]

A). gram
No. This is a unit of mass.

b). centimeter
No. This is a unit of length.

c). cubic centimeter
Yes. Volume.

d). square centimeter
No. This is a unit of area.

4 0

2 years ago