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AveGali [126]
3 years ago
14

20 POINTS!!!! WILL MARK BRAINLIEST!!!!!

Physics
2 answers:
oee [108]3 years ago
8 0
1. Because of gravity....

2. No you either feel still ( gravity) or is actually in movement....

please vote my answer branliest! Thanks
Naya [18.7K]3 years ago
6 0
1). The gravitational attraction between the Earth and sun maintains the closed orbit.
2). We don't feel motion at all. What we feel is CHANGES in motion, that is, changes of speed or direction. That's why, for example, you can get comfy and fall asleep on a jet airliner flying at 500 miles an hour.
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Two charged objects separated by some distance attract each other. If the charges on both objects are doubled with no change in
beks73 [17]

Answer:

a. the force between them quadruples

Explanation:

The electrostatic force between two charges is given by

F=k\frac{q_1 q_2}{r^2}

where

k is the Coulomb's constant

q1 and q2 are the two charges

r is the separation between the two charges

In this problem, the charges on both objects are doubled, so

q_1' = 2q_1\\q_2' = 2q_2

While the distance does not change, so the new force will be

F'= k \frac{(2q_1)(2q_2)}{r^2}=4 (k\frac{q_1 q_2}{r^2})=4 F

so, the force will quadruple.

4 0
3 years ago
Cindy runs 2 kilometers every morning. She takes 2 minutes for the first 250 meters, 4 minutes for the next 1,000 meters, 1 minu
PIT_PIT [208]

Answer:

200 m / min

Explanation:

Total distance = 2000 m

Total time = 2+4+1+3 = 10 minutes

Average speed = 2000 m / 10 min = 200 m/min

7 0
2 years ago
Derive the unit of intensity???
zheka24 [161]

My answer is "Watt per square meter".

5 0
3 years ago
Read 2 more answers
A pendulum makes 60 vibrations in 15 secs what’s its frequency
o-na [289]

Answer:

4 hertz

Explanation:

The defination of freqyency = the total no of cycle made by a wave in one second .

so,

cycle or vibrations=60

tame taken = 15

now,

frequency = no. of cycle / time taken

= 60/15

=4 hertz

hence, the its frequency = 4hertz

8 0
3 years ago
Calculate the work done by the cyclist when his power output is 200 W for 1800 seconds.
Kobotan [32]

Answer:

3.6 × 10^5 J

Explanation:

Work Done = Energy

Energy = Power × time

Energy = 200 × 1800

= 360000 J

W =

3.6 \times 10 {}^{5} j

3 0
3 years ago
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