The sign says the barbell has a mass of 120 kg. The next line says "Force of Gravity" which is really just the barbell's weight. To solve for the weight of the barbell you would use the formula: Weight = Mass X Acceleration (due to gravity). The acceleration due to gravity on Earth is 9.8 m/s/s. Round the acceleration to 10 m/s/s and solve for the weight of the barbell. 120 N

12 N

0 N

1,200 N

5 w for 1hr = 5x60x60 joules=300x60=3000x6=18,000j as total energy conversion. efficiency of bulb needed for radiant to thermal within 18000

this could be newton#'s law of cooling. the cooling curve is exponential

see the picture for the vector

the magnitude of the vector by pythagorean theorem

r = √( (-10)^2 + (3)^2 ) = √109

magnitude = √109 units

the direction angle between vector and x-axis is

tan^(-1)(3/10) = 16.699

so the direction is approximately 16.7 degrees north of west

im srry but ur wrong the answer is d a smooth rock, some red dirt, and an empty bird's nest.