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A projectile fired from a gun has initial horizontal and vertical components of velocity equal to 30 m/s and 40 m/s, respectively.1. What is the speed of the projectile when it is at the highest point in its trajectory_________.2. What is the acceleration of the projectile when it reaches its maximum height__________.
The phase angle of an RLC series circuit with an inductive reactance of 200 ? and a capacitive reactance of 100 ? is 40.0°. What is the value of the resistor in this circuit
Find the rms voltage across each element in an RLC circuit with R = 9.9k? , C = 0.14?F , and L = 27mH
A stone is thrown upward with an inital speed of 20 m/s. What is its acceleration at the higest point of its trajectory, Find its veolocit
A thing rod of mass M and lenght l is suspended from a frictionless pivot at its upper end. How high does the bottom of the rod swing
A jet aircraft is flying at constant altitude. At t1 = 0 it has components of velocity vx = 150 m/s and vy = 130 m/s, What is the acceleration's magnitude and direction during this time interval
A Van de Graa? generator has a potential di?erence of 2.35 MV between the belt and the outer shell. What minimum power is needed to drive the moving belt
A high-tension power line composed of aluminum wire with cross-section area 24 x10?6 m2 carries a current of 1100 A. What is the power loss over 50 km of wire
A car moving with an initial speed v collides with a second stationary car that is one-third as massive. Find the final speed of the second car
a 60 g tennis ball traveling at 30m/s strikes a wall, What is the magnitude of the impulse in the ball
A 11.9-g mass is suspended 1.47 cm above a nonconducting flat plate, directly above an embedded charge of q. by how much will the mass be changed
q1. a 48-m length of wire is stretched horizontally between two vertical posts. the wire carries a current of 64 a and
A car with a mass of 800 kg moves up a hill inclined at an angle 15? to the horizontal with a constant acceleration of 2.5 ms?2. Find the force of the engine
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