3 years ago

Which is an example of a physical change

Physics

1 answer:

mote1985 [20]3 years ago

6 0

Water boiling is an example of a physical change. The rest are chemical changes.
Hope that helps!!

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What type of radioactive decay is shown in this equation?

svp [43]

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3 years ago

Why the bulb of thermometer in cylindrical

crimeas [40]

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3 years ago

An object travels with velocity v = 4.0 meters/second and it makes an angle of 60.0° with the positive direction of the y-axis.

zhenek [66]

Answer:

2 m/s and -2 m/s

Explanation:

The object travels with an angle of

60.0°

with the positive direction of the y-axis: this means that it lies either in the 1st quadrant (positive x) or in the 2nd quadrant (negative x).

If it lies in the 1st quadrant, the value of vx (component of v along x direction) is:

$v_x = v cos \theta = (4.0 m/s) cos 60.0^{\circ}=2 m/s$