6. a woman takes her dog rover for a walk on a leash. to get the little poco moving forward, she pulls on the leash with a force of 20.0 n at an angle of 37 degrees above the horizonta. how much force is tending to lift rover off the ground? 16.0 n 12.0 n 20.0 n 42.1 n 10. vector a has a magnitude of 12.6 m and a direction of -84.0 degrees. vector b ha a a magnitude of 34.0 m and a direction of -75.0 degrees. what is the resultant magnitude and direction of a vector that is equal to a+b? magnitude 20.6 m direction -71.1 degrees magnitude 46.4 m direction -77 degrees magnitude 20.6 m direction -78.2 degrees magnitude 46.4 m direction 102 degrees

#6

woman applies a force of 20 N at an angle of 37 degree from the ground

So here the two components of force is given as

so here the vertical force on the dog that pull it off the ground is 12 N

So correct answer here is 12 N

#10

vector A is 12.6 at angle of -84 degree

vector B is 34 at angle -75 degree

now we can write

magnitude = 46.42

direction =

direction = -77.4 degree

so correct answer is

Magnitude 46.4 m Direction -77 degrees

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