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A woman at an airport is towing her 20.0 kg suitcase at constant speed by pulling on a strap at an angle theta above the horizontal. She pulls on the strap with a 35.0 N force, and the friction force on the suitcase is 20.0 N
(a) Draw a free body diagram of the suitcase.
(b) What angle does the strap make with the horizontal?
(c) What is the magnitude of the normal force that the ground exerts on the suitcase?
A block of weight 46.7 N is hanging from a rope. The tension in the rope is 32.5 N, pulling upward on the block. What is the magnitude of the tension in the rope
A blow-dryer and a vacuum cleaner each operate with a voltage of 120 V. The current rating of the blow-dryer is 12 A, find the power consumed by the vacuum cleaner
In building a particle accelerator, you manage to produce a uniform electric field of magnitude 4.03 × 105 N/C in one 40.5 cm section. How much work is required to move a proton through the section
A 0.50-kg mass is attached to a spring of spring constant 20 N/m along a horizontal, frictionless surface. What is the total energy of the system
A uniform 3.15-kg rope 25.6 m long lies on the ground at the top of a vertical cliff. What was the change in potential energy of the rope during this maneuver
A 100 mH inductor whose windings have a resistance of 6.0? is connected across a 15V battery having an internal resistance of 3.0?
An extension cord made of two wires of diameter 0.129 cm (no. 16 copper wire) and of length 2.7 m (9 ft) is connected to an electric heater which draws 11.5 A on a 120-V line
The 54-MW wood-fired McNeil Generating Station in Burlington, Vermont, produces steam at 950 ?Fto drive its turbines, Find McNeil's maximum thermodynamic efficiency
A 78 g basketball is launched at an angle of 47.3 and a distance of 16.6 m from the basketball goal. What speed must the player give the ball
When some stars use up their fuel, they undergo a catastrophic explosion called a supernova. This explosion blows much or all of a star's mass outward, in the form of a rapidly expanding spherical shell.
A diver springs upward from a board that is 5 meters above the the water. determine her peak height measured above the water
Calculate the mass flow rate (in grams per second) of blood (Ï = 1.0 g/cm3) in an aorta with a cross-sectional area of 2.0 cm2 if the flow speed is 47 cm/s
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