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A cannon ball is fired at a wall located 450 meters away. The initial horizontal component of the balls velocity is 90 m/s and it's initial angle is 24 degrees.
a) What is the initial Speed of the Ball?
b) How long does it take for the ball to reach the wall?
c) What is the maximum height the ball reaches?
d) How high above the ground is the ball when it reaches the wall?
Two point charges, q1 = 2.0 pC and q2 = -2.0 pC, are separated by 3.8 µm.(a) What is the dipole moment of this pair of charges
A coin is placed 18.0cm from the axis of a rotating turntable of variable speed. obtain the coefficient of static friction between the coin and the turntable
Standing at a crosswalk, you hear a frequency of 500 Hz from a siren of an approaching ambulance. Determine the ambulance's speed from these observations
Bob connects a lamp of 34 Ohms resistance across a car battery of 12 volts. what would be the power dissipated by the lamp
In the Bohr model of the hydrogen atom, an electron in the 7th excited state moves at a speed of 4.47 104 m/s in a circular path having a radius of 2.59 10-9 m
In Europe, the standard voltage is 240 V (rms), AC, and 50 cycles/s. Suppose you take your 5.00 W electric razor to Rome and plug it into the receptacle, What is the resistance of your razor
A 700 N window washer is standing on a uniform scaffold supported by a vertical rope at each end. The scaffold weighs 200 N and is 3 m long. what is the force in each rope when washer stands 1 m from one end.
An arrow is shot at an angle such that it's horizontal velocity is 40 m/s, Find the horizontal distance the arrow will travel
The intensity of an earthquake wave passing through the Earth is measured to be 2.5×106 at a distance of 55 from the source. At what rate did energy pass through an area of 3.0 at 1.0
Two charges, qA and qB, are divided by a distance, d, and exert a force, F, on each other. Analyze Coulomb's law and answer the following questions.
A 10 kg block of metal is massed on a spring scale in air. What is the desnity of the metal
Write the general equation of Magnetic force on a current carrying wire of length L in a magnetic field B such that the magnetic field and the current direction make an angle different than 0^0 and 180^0
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