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A projectile is fired horizontally from a gun that is 61.0 m above flat ground, emerging from the gun with a speed of 250 m/s.
(a) How long does the projectile remain in the air? (b) At what horizontal distance from the firing point does it strike the ground?(c) What is the magnitude of the vertical component of its velocity as it strikes the ground?
Two resistors, 80.0 and 64.0 , are connected in parallel. The current through the second resistor is 4.30 A, What is the total power supplied to the two resistors
Find out , the magnitude of the force each plate experiences due to the other plate as a function of , the potential drop across the capacitor.
A proton accelerates from rest in a uniform electric field of 625 N/C. At one later moment, its speed is 1.25E+06 m/s. Over what time interval does the proton reach this speed
A 15.0{rm cm}-diameter non-conducting sphere carries a total charge of 2.25 mu {rm C}, distributed uniformly throughout its volume. Graph the electric field E as a function of the distance r from the center of sphere from r = 0 to r = 30.0{rm{ cm}..
Three people pull simultaneously on a stubborn donkey. Jack pulls eastward with a force of 82.1 N, Jill pulls with 64.3 N in the northeast direction, What is the direction of the net force
A rail car that weighs 40 N is accelerated at 6.9 m/s/s for 4.9 seconds. How much work is done on the rail car
The lowest outdoor temperature ever recorded on Earth was %u2212128.6 %u25E6F, recorded at Vostok Station, Antarctica, in 1983. What is this temperature on the Kelvin scale
A crate of mass 10.6 kg is pulled up a rough incline with an initial speed of 1.52 m/s. What is the change in kinetic energy of the crate
What is the magnetic flux passing through Ring 2 due to A and derive an expression for the induced emf in Ring 2, 62? How much current flows in Ring 2 and in which direction?
The dialectric breakdown of air is approximately 3E6 V/m. This is the electric filed required to create a spark, What is the approximate voltage on the sphere at that instant
q1. a pet-store supply truck moves at 25ms north along a highway. inside a dog moves at 1.85ms at an angle of 35deg
A car is moving to the left at 20 m/s while a truck is moving to the right at 25 m/s. what is the perceived frequency, in Hz, of the sound by the driver of the car
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