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A projectile is launched from ground level to the top of a cliff which is 195 m away and 135 m high. If the projectile lands on top of the cliff 6.6s after it is fired, find the initial velocity of the projectile ( (a) magnitude and (b) direction ). Neglect air resistance.
explain why the ability to distinguish the two headlights of an oncoming car at a given distance is easier for the
A coil has 400 turns and self-inductance 4.80mH . The current in the coil varies with time according to i=(630mA)cos[pit/(0.0250s)]. Part A Max Emf induced in the coil =0.410V Part B Max flu through each turn of the coil= 8.16*10-6 Wb Part C At = 0.0..
An object acted on by three forces moves with fix velocity. Find the magnitude and direction of the third force acting on the object
a container is filled to a depth of 20.0 cm with water. on top of the water floats a 35.0 cm thick layer of oil with
During an electrostatic field experiment, you assume that the electric field lines are in the plane of the paper, What condition determines the accuracy of this assumption
Two particles with Q1 = 50 µC and Q2 = 79 µC are initially separated by a distance of 2.4 m, What is the change in the electric potential energy
q1. a 5.19 g lead bullet travelling at 252 ms is stopped by a large tree. if half the kinetic energy of the bullet is
Runner A is initially 8.0 mi west of a flagpole and is running with a constant velocity of 6.0 mi/h due east. How far are the runners from the flagpole
A dentist's drill starts from rest. After 3.20 s of constant angular acceleration it turns at a rate of 2.3 104 rev/min. Find the drill's angular acceleration
a toroidal selenoid has inner radio r1 15.0 cm and outer radius r2 18.0 cm. the selenoid has 250 turn and carries a
A spherical capacitor contains a solid spherical conductor ofradius 0.1 mm with a charge of 3.7 microCoulombs, compute the electric field everywhere
1 the intensity level produced by a jet airplane at a certain location is 163 db. calculate the intensity of the sound
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