<span> it CAN be negative if you consider the velocity as "vector". It CANNOT if you consider the "numerical" velocity..</span>
The angle is found by taking the arctangent of the vertical angle divided by the horizontal angle
θ = arctan(18/25) = 35.75°
36° is the closest answer.
Answer:
The magnitude of the electric field equal to 2.40 N/C at 1.1537m from the wire.
Explanation:
using Guass law,
(guessing that a cylinder of radius r and length L around wire such that wire is at centre )
E. A = qin / e0
E ( 2πr L ) = (1.56 x
x L) / (8.85 x
)
E = (1.56 x
) / (2πr x 8.85 x
)
so 2.40 = (1.54 x
) / (2πr x 8.85 x
)
2.40 (6.284r) = 0.174 x 10²
15.0816r = 17.4
r = 1.1537m
Answer:

Explanation:
The velocity of sound in air at 20 °C is 343 meters per second. The distance of mountain can be derived by the following expression:



