Physics, 04.07.2019 23:00 seider7997

Four 8.5 kg spheres are located at the corners of a square of side 0.52 m. calculate the magnitude and direction of the gravitational force exerted on one sphere by the other three. magnitude

Answers: 1

Show answers

Answers

3.4x10^-8 N of force directly towards the sphere in the opposite corner of the square. The gravitational attraction of two masses towards each other is F = G(m1m2/r^2) where G = gravitational constant m1,m2 = masses r = distance between the centers of the masses. So the force being exerted by the masses alone an edge of the square would be F = 6.674x10^-11 N(m/kg)^2 * ((8.5 kg)^2)/((0.52m)^2) F = 6.674x10^-11 N(m/kg)^2 * (72.25 kg^2)/(0.2704 m^2) F = 6.674x10^-11 N(m/kg)^2 * 267.1967 (kg/m)^2 F = 1.78327x10^-8 N There are 2 masses that affect a mass on a corner so that the sum of their vectors will result in a 3rd vector aiming towards the mass in the diagonal corner. So sqrt(2(1.78327x10^-8 N)^2) = 2.52193x10^-8 N The mass in the diagonal corner will also be attracting. The distance to that mass is sqrt(2*(0.52m)^2) = 0.735391052 m F = 6.674x10^-11 N(m/kg)^2 * ((8.5 kg)^2)/(2*(0.52m)^2) F = 6.674x10^-11 N(m/kg)^2 * (72.25 kg^2)/(0.5408 m^2) F = 6.674x10^-11 N(m/kg)^2 * 133.5984 (kg/m)^2 F = 8.916355x10^-9 N This vector will be along the same line as the combined vector from the other 2 masses, so they'll add directly. F = 8.916355x10^-9 N + 2.52193x10^-8 N = 3.4136x10^-8 N Since we have 2 significant figures in our data, the result rounded to 2 significant figures is 3.4x10^-8 N

Answer from: Quest

sleep paralysis is a parasomnia, events associated with sleep.

sleep paralysis happens when you are in the middle of waking up or falling asleep. it is the feeling of being conscious but unable to move. it definitely involves hallucinations.

i had a friend that had sleep paralysis and he told me a story one time where he was laying in bed and he couldn't move his body no matter how hard he tried and there was someone standing in the corner of his room coming towards him. he couldn't move and you can't "wake up" because you are already conscious. sometimes sleep paralysis can be triggered by frequent waking up during the night based off of multiple trips to the bathroom, or if you had ever been abused, sleep paralysis can start happening from things like that.

Answer from: Quest

the components of a vector are the parts of the vectors that are to each other.

b perpendicular

Another question on Physics

Physics, 21.06.2019 18:20

What color would an object that reflects green and blue light appear to be in white light? a. blue b. cyan c. magenta d. black

Answers: 1

Answer

Physics, 22.06.2019 00:00

1134567 a jet with mass m = 1.1 ă— 105 kg jet accelerates down the runway for takeoff at 2 m/s2. 1) what is the net horizontal force on the airplane as it accelerates for takeoff? 2.2*10^5 n your submissions: 2.2*10^5 computed value: 220000submitted: saturday, january 26 at 2: 41 pm feedback: correct! 2) what is the net vertical force on the airplane as it accelerates for takeoff? 0 n your submissions: 0 computed value: 0submitted: saturday, january 26 at 2: 41 pm feedback: correct! 3) once off the ground, the plane climbs upward for 20 seconds. during this time, the vertical speed increases from zero to 21 m/s, while the horizontal speed increases from 80 m/s to 95 m/s. what is the net horizontal force on the airplane as it climbs upward? n 4) what is the net vertical force on the airplane as it climbs upward? n 5) after reaching cruising altitude, the plane levels off, keeping the horizontal speed constant, but smoothly reducing the vertical speed to zero, in 13 seconds. what is the net horizontal force on the airplane as it levels off? n 6) what is the net vertical force on the airplane as it levels off?

Answers: 1

Answer

Physics, 22.06.2019 06:30

The coulomb's law explains which of the following? select all the force between two charged objects is inversely proportional to the charge on each object. the force between two charged objects is directly proportional to the charge on each object. the force between two charged objects is directly proportional to the distance separating them. the force between two charged objects is inversely proportional to the square of the distance separat coulomb's law is similar to newton's 2nd law. if the force between two objects is f and the charge on both objects is doubled, the new force between the would now be 2f. if the force between two objects is 2f and the distance separating them is doubled, the new force between the objects would now o the be zf.

Answers: 3

Answer

Physics, 22.06.2019 18:00

Asynthetic fiber used in manufacturing carpet has tensile strength that is normally distributed with mean 75.5 psi and standard deviation 3.5 psi. how is the standard deviation of the sample mean changed when the sample size is increased from n equals 8 to n equals 47

Answers: 2

Answer

You know the right answer?

Four 8.5 kg spheres are located at the corners of a square of side 0.52 m. calculate the magnitude a...

Questions