Answer:
1 is the 2nd. 2 is the 1st. 3 is the 1st. 4 is the 3rd
Explanation:
Answer:3.6
Explanation:
Given
Architect decide to double the width
length increases by 50 percent
height increases by 20 percent
Let L,B,H be length,height and width of rectangular room
L'=1.5L
B'=2B
H'=1.2H
therefore new volume V'=L'\times B'\times H'
V'=3.6LBH
new volume is 3.6 times the original
Answer:
The acceleration is 0.062 m/s^2.
Explanation:
mass = 12 kg
F = 30 N at 20° right
F' = 45 N at 50° left
Let the acceleration is a.
The net force is
F'' = F' cos 50° - F cos 20°
F'' = 45 x 0.643 - 30 x 0.94 = 28.94 - 28.2 = 0.74 N
According to the Newton's second law
0.74 = 12 x a
a = 0.062 m/s^2
The answer is A because the distance covered is equal time intervals is the same or equal.
Firstly,friction depends partly on the nature of surface in contact with the moving body.The rougher the surface, the morer the friction experienced.Secondly, it is affected by the magnitude of force holding the two bodies that should be in contact,this is to say that an increase in the amount of weight on a body results to a rise in friction experienced by the body on the surface.