On September 2, 2013, the temperature record at El Azizia, Libya (58° C) was disqualified. Therefore, the highest temperature recorded on the surface of the earth was recorded in 1913 at Death Valley, California. The mercury climbed to 56.7° C.
Answer: The answer is electricity and magnetism.
Explanation: The atom's center, or nucleus, is positively charged and the electrons that whirl around this nucleus are negatively charged, so they attract each other. The reason the force is strong is because the atom is so small.
Answer:the answer is B
Explanation: just took the quiz
Answer:
A) 1.2
B) 1.1
Explanation:
A)
F = force required to start the box moving = 36.0 N
m = mass of the box = 3 kg
= weight of the box = mg = 3 x 9.8 = 29.4 N
= normal force acting on the box by the floor
normal force acting on the box by the floor is given as
= = 29.4
= Static frictional force = F = 36.0 N
= Coefficient of static friction
Static frictional force is given as
=
36.0 = (29.4)
= 1.2
B)
a = acceleration of the box = 0.54 m/s²
F = force applied = 36.0 N
= kinetic frictional force
= Coefficient of kinetic friction
force equation for the motion of the box is given as
F - = ma
36.0 - = (3) (0.54)
= 34.38 N
Coefficient of kinetic friction is given as
= 1.1