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It is 7.00 km from your home to the physics lab. As part of your physical fitness program. you could run that distance at 10.0 km/hour (which uses up energy at the rate of 700W ), or you could walk it leisurely at 3.00 km/hour (which uses energy at 290 W).
Part A Which choice would burn up more energy?
Part B How much energy (in joules) would it burn?
Part C Why is it that the more intense exercise actually burns up less energy than the less intense one?
For lead 82Pb207 (atomic mass = 206.975880 u) obtain the mass defect in atomic mass units,
A 10uF capacitor is charged so that the potential difference between its plates is 10.0V. How much charge flows from one capacitor to the other when the capacitors are connected
The net force on the object is not zero in Tubby's frame, but there is an inertial frame in which net force is zero.
a 40 cm diameter loop is rotated in a uniform electric field until the position of maximum electric flux is found. the
Calculate the elecrtic field at one corner of a square 1m on aside if the other three corners have 2micro C charges. Writeyour answers in vector form and also magnitude, angle format
A pitcher throws a 0.140-kg baseball, and it approaches the bat at a speed of 50m/s. The bat does Wnc = 70J of work on the ball in hitting it. Ignoring air resistance, determine the speed of the ball after the ball leaves the bat and is 25.0 m abo..
Determine how much work must be done to stop a 900 kilogram vehicle traveling at 120 kilometer per hour
A substance is at 2 MPa, 17oC in a rigid tank. Using only the critical properties can the phase of the mass be determined if the substance is nitrogen, water or propane?
A cat drops from a shelf 4.5ft above the floor and lands on all four feet. His legs bring him to a stop in a distance of 12cm. Calculate how long it takes him to stop
q1. on the wheel of fortune game show a solid wheel of radius 6.7 m and mass 10 kg is given an initial counter
The figure below shows a 6.2 kg rod of 1.00 m in length, hinged to a vertical wall and supported by a thin wire. The wire and rod each make angles of 45° with the vertical. When a 10.0 kg block is suspended from the midpoint of the rod, the tension T..
A square wire 2.0 cm on each side is oriented so that a 5.00 mT magnetic field makes a 30.0 degree angle with the normal to the plane of the square. how many loops does the wire make
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