F = M G
M = F / G = 39.2 / 9.8 = 4 kg
this is not right i chose this answer and it was wrong thanks a lot i failed
What planet are you on? I don't mean to be a wise-ass, but weight depends upon the acceleration of gravity, which is different on different planets, whereas mass is the same no matter where you are. On the surface of the Earth, the acceleration due to gravity is 9.8 m/s2, so a 40-kg mass will weigh 40 x 9.8 = 392 newtons.
Assuming you're on Earth, the barrel weighs 392 N.
-- If the 40 kilogram mass is on the Earth, you need about 392 newtons (88.2 pounds).-- If the same mass is on the moon, you need about 64.9 newtons (14.6 pounds).-- If it's inside a space ship with you and your ship is coasting, then you canlift it with ANY force, no matter how large or small. In fact, after you lift it, you'llneed to apply force in the opposite direction in order to make it stop lifting.
PE=mgh Potential Energy = mass x gravity x height. PE=(5kg) x (9.8 m/s2) x (8m) which is the equation when you put the things you know into the right places. Gravity is the missing number, and that equals 9.8 m/s2PE = mghPE = (5 kg)(9.8 m/s2)(8 m)PE = (5 kg)(78.4 m2/s2)PE = 392 kg m2/s2 or 392 joulesThis block can perform 392 joules of work.
the work done by the ball is given by the equation, W=mgh =(5)(9.8)(8) =392 joules.
What planet are you on? I don't mean to be a wise-ass, but weight depends upon the acceleration of gravity, which is different on different planets, whereas mass is the same no matter where you are. On the surface of the Earth, the acceleration due to gravity is 9.8 m/s2, so a 40-kg mass will weigh 40 x 9.8 = 392 newtons.
If the mass of the barrel is 40 kilograms and the barrel is presently on earth, then it weighs 392 newtons (88.2 pounds). What you do with it, what dizzying gyrations you subject it to, or what other objects happen to be nearby, have no effect on its weight.
The Last Town on Earth has 392 pages.
The sun of course, the sun's diameter is about 1, 392, 000 km and Earth's diameter is about 12, 756km
There are six factor pairs: 392 = 1 x 392 392 = 2 x 196 392 = 4 x 98 392 = 7 x 56 392 = 8 x 49 392 = 14 x 28
392 56 x 7 = 392
No. Pluto has less mass and it is further away, so the force is a lot less. Pluto's mass is only about 0.0022 times the Earth's mass and Pluto is (on average) about 39 times further away from the Sun than Earth. So, according to Newton's law of gravity, the gravitational force attracting Pluto compared with Earth is only about 0.0022/392. That's only about 1.4 x 10-6 times the force felt by the Earth. The force on the Earth is 3.542 x 1022 Newtons, ±3.4% due to the elliptical orbit. The force on Pluto is 5.001 x 1016 Newtons, ±50%.
392^3 = 60,236,288.
392
√392 = ~19.8
√392 ~= 19.799
Yes. 19.7989 is the square root of 392. But 392 is not a perfect square.