OK. I see what's going on here.
To answer all of these, you have to know two basic things about the
electric field.
(THAT's the whole purpose of the question ... to help you determine
whether you're clear on these two things, or need to go over them.)
Thing #1).
The larger the charge is, the stronger the field is around it,
and a stronger field is indicated with more lines.
Thing #2).
The direction of the lines is the direction of the force on a tiny positive
charge in the field.
If the charge in the middle is positive, then another tiny positive charge
gets pushed away from it ... the lines point OUT.
If the charge in the middle is negative, then a tiny positive charge
gets attracted to it ... the lines point IN.
_________________________
drawing a).
lines point in, charge in the middle is negative
thickest set of lines . . . biggest negative charge
drawing b).
lines point out, charge in the middle is positive
thicker than average lines . . . biggest positive charge
drawing c).
lines point in, charge in the middle is negative
thin lines . . . negative charge in the middle is kind of small
drawing d).
lines point out, charge in the middle is positive
thin lines . . . positive charge in the middle is kind of small
___________________________
I just looked through the charges, to see what they gave us
for positive, negative, big ones, little ones, etc.
BE CAREFUL when you decide which charge to put in the middle.
Don't just look at the beginning numbers ... be sure and consider the exponents too.
Answer:
Pluto's orbit brings it inside the orbit of <u>Neptune</u>.
Answer:
Sample Response: If temperature and surface area increase, then the time it takes for sodium bicarbonate to completely dissolve will decrease, because increasing both factors increases the rate of a chemical reaction.
Explanation:
Answer:
The answer is below
Explanation:
Plants that grow among many tall trees in a dense forest could adapt so that they could get enough air and water through the following means:
1. By becoming climbers. Here they climb up the nearby trees to get more air and sunlight.
2. Plants grow leaves that have pointed tips. This allows the passage of water in the plant's leaves without causing damage.
3. Some plants grow as epiphytes, where they grow on big trees' canopy
Answer:
58.0 m/s
Explanation:
We can solve the problem by using the following SUVAT equation:
where
v is the final velocity of the roller coaster
u = 13 m/s is the initial velocity
a = 4.0 m/s^2 is the acceleration
s = 400 m is the displacement
Substituting and solving for v, we find