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Suppose your body was able to use the chemical energy in gasoline, How far could you pedal a bicycle? How far could you pedal a bicycle at 15km/hr on the energy in 1.8 gal of gas? (1 gal of gas has a mass of 3.2 kg)
In brief explain the changes that the Sun will go through after it exhausts its core hydrogen. Be sure to describe both the changes occurring in the Sun's core and the changes visible from outside the Sun. What do we mean by the stages we call hydrog..
A 15m uniform ladder weighing 500 N rests against a frictionless wall. The ladder makes 60 angles with the horizontal.
A person of mass 89.70 kg escapes from the burning building by jumping from a window situated 27.50 m above a catching net.
What is the speed of the 2 cars as they move together after the collision.
A hawk flies in a horizontal arc of radius 12 m at a speed of 4 m/s, and increases its speed at the rate of 1.20 m/s2. Find the acceleration (and direction) under these conditions.
Suppose two kids get on a 4 meter long teeter-totter. The one on the right creates a CW torque of 350 Newton-meters (Nm). Quite by coincidence, when the other kid sits at 1 meter from his end they balance perfectly. How much does second kid weigh.
A 110kg clock initially at rest on a horizontal floor requires a 607N horizontal force to set it in motion. After the clock is in motion, horizontal force of 525 N keeps it moving with a constant velocity.
What is constant acceleration
A stone is dropped into a river from a bridge 43.90 m above the water. Another stone is thrown vertically down 1.00 after the first is dropped. The stones strike the water at the same time.
Where is center of mass of the system
A ship sets out to sail to the point 158 km due north. An unexpected storm blows the ship to a point 134 km due east of its starting point. (a) How far (in km) and (b) in what direction (as an angle from due east, where north of east is a positive an..
Find the velocity of each object after the collision.he encountered cold weather conditions on the way to Payson, Utah when the temperature was 23 kelvin lower than in Las Vegas, where he delivered his entire load. how much liters did he deliver.
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