Baptiste walked 420 m in 17.5 min. what is his average speed in m/min? what is his average speed in m/s?

Average speed in m/min is 24m/min

Average speed in m/sec is 0.4m/sec

Explanation:

Given:

Distance, x = 420m

Time, t = 17.5 min

Average speed in m/min and m/s

Average speed in m/min =

                                          =

                                          = 24 m/min

Average speed in m/sec =

                                         =

                                         = 0.4 m/sec

we're given that v₀ = 0 and a = 5.4 m/s². therefore, since v = at + v₀ for constant acceleration the equation for velocity is

after 28s,

m/s

which i would round to 150 m/s as my final answer

electromagnetic shielding is the practice of reducing the electromagnetic field in a space by blocking the field with barriers made of conductive or magnetic materials. shielding is typically applied to enclosures to isolate electrical devices from their surroundings, and to cables to isolate wires from the environment through which the cable runs. electromagnetic shielding that blocks radio frequency electromagnetic radiation is also known as rf shielding.

the shielding can reduce the coupling of radio waves, electromagnetic fields and electrostatic fields. a conductive enclosure used to block electrostatic fields is also known as a faraday cage. the amount of reduction depends very much upon the material used, its thickness, the size of the shielded volume and the frequency of the fields of interest and the size, shape and orientation of apertures in a shield to an incident electromagnetic

from wikipedia