Answer: The color is orange, the state of matter is liquid
Explanation:
Answer:
a=4,32m/s^2
Explanation:
Fnet = F1 - F2
= 12-1.2
= 10.8N
m=2.5kg
Fnet =ma
10.8=2.5a then divide both sides by 2.5 to get acceleration
The answer would be 54 m/s as the maximum speed
Answer:
23.1 N/C
Explanation:
OP = 3 m , OQ = 4 m

q = - 8 nC, Q = 75 nC
Electric field at P due to the charge Q is

Electric field at P due to the charge q is

According to the diagram, tanθ = 3/4
Resolve the components of E1 along x axis and along y axis.
So, Electric field along X axis, Ex = - E1 Cos θ
Ex = - 27 x 4 / 5 = - 21.6 N/C
Electric field along y axis, Ey = E1 Sinθ - E2
Ey = 27 x 3 /5 - 8 = 8.2 N/C
The resultant electric field at P is given by

Answer:
5 cm .
Explanation:
Wave length of sonar waves λ = 1390 / 512
= 2.715 m
For waves getting reflected from both layers of the coating , undergoing phase reversal , net change will be zero .
For destructive interference
path diff = ( 2n+1) λ / 2
2μt = ( 2n+1) λ / 2
2 x 13.5 x t = ( 2n+1) λ / 2
for minimum thickness
n = 0
2 x 13.5 x t = λ / 2
2 x 13.5 x t = λ / 2
t = λ / (2 x 27)
= 2.715 / 2 x 27
= .05 m
5 cm .