If your mass, the mass of Earth, and the mass of everything in the solar system were twice as much as it is now, yet everything stayed the same size, your weight on Earth woulda. quadruple. b. be the same. c. double. d. be eight times as much as now. e. none of the above
1 answer:
Answer: a. Quadruple
Explanation:
Gravitational force = Gm1m2/r^2
(Where m1 is the mass of earth, m2 is my mass and r is the radius of earth and G is the gravity constant)
Weight = m2g
(Where g is the acceleration due to gravity)
Gm1m2/r^2 = m2g
Twice the masses
F = G(2m1)(2m2)/r^2
F = 4Gm1m2/r^2
The gravitational force has increased 4 times, this means that my weight on earth will quadruple
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No
Refer to the attachment for calculations
Answer:
60 000 N
Explanation:
1 pa = 1 N/m^2
you have 300 000 of these = 300 000 N /m^2
but only an area of .2 m^2
300 000 N / m^2 * .2 m^2 = 60 000 N
i think it looks good
yea it correct
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Plugging in for the Earth's mass and for G, we have 11.2 km/s for the escape velocity for an object launched from the Earth's surface. This is about 25,000 miles per hour
Answer:
40mph
Explanation:
1st leg DATA:
time = 3 hrs ; speed = r mph ; distance = 3r miles
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2nd leg DATA:
speed = r mph ; distance = 12 miles
--------------------------------
3r + 12 = 132
3r = 120
rate = 40 mph
