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A woman at an airport is towing her 15.0-kg suitcase at constant speed by pulling on a strap at an angle ? above the horizontal. She pulls on the strap with a 26.0-N force, and the friction force on the suitcase is 20.0 N.
(A) What angle does the strap make with the horizontal?
(B) What is the magnitude of the normal force that the ground exerts on the suitcase?
What is the potential drop within the battery if the internal resistance is 4.3ohms and a current of 2.7 ampere is passed through it
The position function x(t) of a particle moving along an x axis is x = 4.5 - 4.5t2, with x in meters and t in seconds.
A circular loop of flexible iron wire has an initial circumference of 169cm but its circ. is decr. Find the magnitude of the emf induced in the loop after exactly time 5.00s has passed since the circumference of the loop started to decrease
when it falls back it hits the ground with speed v1=50m/s. The mass of the ball is m=20g. Evaluate what is the total work done by the drag force while the ball is in the air?
A capacitor that is initially uncharged is connected in series with a resistor and a 406.7V emf source with negligible internal resistance, What is the resistance of the resistor
Describe what the Zeroth Law of Thermodynamics is in your own words. Also, draw a scenario that verifies the Law is accurate. State the other Laws of Thermodynamics
For a particle of mass m and charge q moving in a circular path in a magnetic field B, Find angular momentum of a particle about the center of the circle
Evaluate the magnitude of the apparent weight of a 84 kg astronaut 4500 km from the center of the Earth's Moon in a space vehicle accelerating toward the Moon at 3.1 m/s^2?
Blocks with masses of 4.0, 8.0, and 9.0 are lined up in a row on a frictionless table. All three are pushed forward by a 16 force applied to the 4.0 block. How much force does the 8.0 block exert on the 8.0 block.
Which physical parameter, more than any other, most probably controlled the early evolution of the planetary system and dictated the characteristics of the planets that eventually formed?
how much time passes before the police car overtakes the speeder after the speeder passes (assumed moving at constant speed).
Two protons, each having a speed of 0.970c in the laboratory, are moving toward each other. Determine the momentum of each proton in the laboratory
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