Answer:
artificial: light bulb, flash light, computer screens. natural: sun, stars, fires.
Answer:
Really fast, usually would bounce up and down after it falls
Explanation:
The force of friction on the box is 8.82 N.
The force of friction is given by the formula
F=μN
Here N is the normal force of the box=mg=3*9.8=29.4 N
Now the static friction force on the box is=0.4*29.4=11.76 N
Since the box is applied with the horizontal pull of 15 N, which is greater than the static friction, therefore the box must be in the moving condition, in that case there is dynamic friction force is applied on the box=0.3*29.4=8.8 N
Therefore the force of friction on the box is 8.8 N.
Answer:
The magnitude of the vertical component of its velocity as it hits the ground is 30 m/s. The horizontal distance from the firing point is 750 meters.
