According to Newton's Brd Law, an object's momentum depends on it's velocity and mass, 4 dog-sled teams
competed to see who could gain the greatest momentum. All 4 sled and driver teams were the same mass, but
each driver had to select a passenger to carry as part of the challenge. Each passenger was a different mass
Which sled team had the greatest momentum at the finish line?
A
Sled Team A 48 kg moving at 10m/5
Sted Tem
C
ving-at-18mts
Sled Team C 28 kg moving at 12m/s
D
Sled Team D 22 kg moving at 12 m/s

Team A has the greatest momentum

Explanation:

The momentum of an object is a vector quantity given by

where

m is the mass of the object

v is its velocity

In this problem, we have to compare the momenta of the different sleds.

We have:

A) Sled Team A 48 kg moving at 10m/s:

m = 48 kg

v = 10 m/s

p = (48)(10) = 480 kg m/s

B) Sled Team B 14 kg moving at 18m/s

m = 14 kg

v = 18 m/s

p = (14)(18) = 252 kg m/s

C) Sled Team C 28 kg moving at 12m/s

m = 28 kg

v = 12 m/s

p = (28)(12) = 336 kg m/s

D) Sled Team D 22 kg moving at 12m/s

m = 22 kg

v = 12 m/s

p = (22)(12) = 264 kg m/s

So, team A has the greatest momentum.

their crystal patterns have been disrupted by stress

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