The electrostatic force between the glass bead and the plastic bead is given by:
where
k is the Coulomb's constant
q1 is the charge of the glass bead
q2 is the charge of the plastic bead
r is the separation between the two beads
In this problem,
and
, and since we know the force,
, we can rearrange the equation to find q2, the charge of the plastic bead:
Answer:
The correct statements are A and E.
Explanation:
This statements will be explained according to the Newton's third law of motion. It states that when two bodies interact, they apply forces to one another that are equal in magnitude and opposite in direction (law of action and reaction).
A. You are experiencing a larger acceleration than your friend, but in the opposite direction. True. The forces are equal, but the mass of each individual is different, so the acceleration has to be different too. In this case, the smaller mass (you) has the large acceleration.
B. You are experiencing the same acceleration as your friend, but in the opposite direction. False. The forces are equal but the accelerations are different.
C. You are experiencing a smaller acceleration than your friend, but in the opposite direction. False. You are experiencing a larger acceleration due to the smaller mass.
D. You are experiencing a smaller force than your friend, but in the opposite direction. False. The forces are equal for both masses.
E. You are experiencing the same amount of force as your friend, but in the opposite direction. True.This is what the law states.
F. You are experiencing a larger force than your friend, but in the opposite direction. False. The forces are equal.
Answer:
1) duration of the sessions
2) daily pattern days and ..
Fromula for calculating mass when density and volume are given is as m=ρV mass of blood = 1.05 × 2 mass of bag of blood = 2.15 kg
Answer:
a)801KJoules
b)The woman must climb stairs for an equivalent of 1.57km
Number of stairs=7850 stairs
Explanation:
a)We use the conversion between Joules and Kcal:
4184Joules=1Kcal
540Kcal*(1484Joules/1Kcal)=801KJoules
b)The physical Work must be equal to the food energy
The woman must climb stairs for an equivalent of 1.57Km
For example if an stair measure 20cm=0.2m
Number of stairs=1.57km/0.2m=7850 stairs