From the calculation, we can see that the force that moves the box forward is 5.7 N.
<h3>What is frictional force?</h3>
The term frictional force refers to the force that opposes motion. Given that;
ma = ukmgcosθ + F
Let F be the forward force.
Hence;
F = ma - ukmgcosθ
F = 4 * 3 - (0.32 * 4.00 * 9.8 * sin 30)
F = 5.7 N
Learn more about frictional force:brainly.com/question/14662717
#SPJ1
Answer:
<em>Digital clock is the most precised one</em>
<em></em>
Explanation:
Answer:Colloids include gels and emulsions; the particles do not settle, and cannot be separated out by ordinary filtering or centrifugtion
Explanation:they are homogenous/non crystalline
True
Gay Lussac's Law
When the volume is constant, the gas pressure is proportional to its absolute temperature

Answer:
making observations
Explanation:
because in order to observe anything you may have to use sight, smell, touch maybe even taste or sound
hope this helps