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Two blocks, each with weightw, are held in place on a frictionless incline in terms ofwand the angleaof the incline. Calculate the magnitude of the force that the incline exerts on each block in N.
Megan is sitting (at rest) at the top of a slide that is inclined 25o with respect to the horizontal. how much does the thermal energy of the system increase during Megan's trip down the slide
The horizontal and vertical components of the initial velocity of a football are 20m/s and 30m/s respectively. What horizontal distance does the football travel during flight
Two stars located 27 light-years from Earth are barely resolved using a reflecting telescope having a mirror of diameter 66 cm. find the separation between the stars
suppose a high voltage dc generator produces a potential difference of 75. kv across an air gap distance of 1.25 cm.
A 3.0 kg mass is attached to a vertical spring hanging from the ceiling. The spring and mass are stationary. The spring constant for the spring is 250 N/m. What is the gravitational potential energy of the system
Suppose you are a researcher doing such an experiment in a location where the earth's field is 50 ?T at a 60 ?angle below horizontal. What is the proper orientation of the coil
A gasoline engine in a large car takes in 10,500J of heat and delivers 2450J of mechanical work per heat cycle. How much gasoline is burned during each cycle
a workman on the scaffolding outside one of the science classrooms drops a wrench. a physics student bored with the
A certain loudspeaker (assumed to be a point source ) emits 30.0 W of sound power. Calculate the power intercepted by the microphone
A galvanometer with a coil resistance of 11.0 and the full-scale current of 0.150 mA is used with a shunt resistor to make an ammeter. The ammeter registers the maximum current of 4.00 mA. Find the equivalent resistance of the ammeter.
For comparison, what is the magnitude of the acceleration a test tube would experience if dropped from a height of 1.0 m and stopped in a 2.0-ms-long encounter with a hard floor
1.00 ×1020electrons flow through a cross section of a 3.90?mm?diameter iron wire in 4.50s . The electron density of iron is n =8.5×1028m?3
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