Answer:
work = 500*3 = 1500 J
1500J in 5 sec = 300 watts
Explanation:
Answer:You had a hard one. so for the 3 one the egg will not Evan float at all so no it will not
Explanation:a egg is a fragile thing that can not float.
Answer:
v = 2.85 m/s
Explanation:
By the law of similarity of the triangle we can say

here we know that
height of man = 2 m
let the distance of man from spotlight = x
distance of wall from spotlight = 12 m
height of image is let say "y"
so we will have


now we have

here we know

x = 4 m
now we have


Answer:
Acceleration will be 
So option (D) will be correct answer
Explanation:
We have given angular speed of the electrical motor 
We have to change this angular speed in rad/sec for further calculation
So 
Armature radius is given r = 7.165 cm = 0.07165 m
We have to find the acceleration of edge of motor
Acceleration is given by 
So acceleration will be 
So option (D) will be correct answer