Due to the difference ofwavelength, blue has short wavelenght compared with red(red has long wavelength)
Answer: 299,427.84 J, 99,809.28 W
Explanation: we will assume the acceleration of the body to be constant, hence newton's laws of motion is applicable.
From the question
Force (f) = 75 N
Mass of object (m) = 6kg
Initial velocity (u) = 20 m/s
Final velocity (v) = 58 m/s
Time taken (t) = 3s
Recall that
F = ma
75 = 6a
a = 75/6 = 12. 5 m/s²
We need to get the distance before we can get the work done.
Recall that v² = u² + 2as, where s = distance covered
56² = 20² + 2(12.5)s
56² - 20² = 25s
2736 = 25s
s = 2736/ 25 = 109.44m
Work done = force × distance
Work done = 75 × 109.44 = 299,427.84 j
Power = work done / time
Power = 299,427.84 / 3
Power = 99,809.28 W
Answer:
6N
Explanation:
Given parameters:
Pressure applied by the woman = 300N/m²
Area = 0.02m²
Unknown:
Force applied = ?
Solution:
Pressure is the force per unit area on a body
Pressure = 
Force = Pressure x area
Force = 300 x 0.02 = 6N
<span>B)if the positive ion ends in -ide </span>
Hello,
Average speed is total distance divided by total time. From the problem, our total distance is given as 500 kilometers and given time is 5 hours. Therefore, the average speed is:
Therefore, the average speed is 100 km/h. Please let me know if you have any questions!
