Sally performed an experiment. The measurement was taken three times. 68.152 ml 68:154 ml 68.160 ml
The correct measurement was 68.2 ml. Is Sally's measurement accurate, precise, or
neither?
A. accurate
B. precise
C. both
D. neither accurate nor precise
Please answer correctly!! ​

If an inclined plane is 5 m long and 2 m high, what is its mechanical advantage? a. 2.5 b. 3 c. 7 d. 10

Suppose that an electromagnetic wave which is linearly polarized along the x−axis is propagating in vacuum along the z−axis. the wave is incident on a conductor which is placed at z > 0 region of the space. the conductor has conductivity σ, magnetic permeability µ and electric permittivity ε. (a) find the characteristic time for the free charge density which dissipates at the conductor. (b) write the maxwell equations and derive the wave equation for a plane wave propagating in a conductor. (c) find the attenuation distance at which the incident amplitude reduces to e ^−1 of its initial value. (d) find the electric and magnetic fields inside the conductor. 8 (e) find the power loss per area of the incident electromagnetic wave at the surface of conductor.

Aregion of space in which a measurable gravitational force is indicated by the force exerted on a test mass is called