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Q1. A golf ball is struck with a five iron on level ground. It lands 95.3 m away 4.50 s later. What were (a) direction and (b) magnitude of the initial velocity?
Q2. When it rains water vapour in the air condenses into liquid water and energy is released. How much energy is released when 0.0244m of rain falls over an area of 2.59 x 10^6 m^2? If the average energy needed to heat one home for a year is 1.40 x 10^11 J how many homes can be heated with an energy determined in part a?
In a series R-L-C circuit, R= 300oms, Xc=300oms and XL=500 oms . The average power consumed in the resistor is 60.0 W. What is the power factor of the circuit
Two parallel rods are each 0.50 m in length. They are attached at their centers to either end of the spring (spring constant = 150 N/m) that is initially neither stretched nor compressed.
Determine how many times greater heat loss occurs through a glass window thats 80.0 cm high, 70 cm wide, and 0.300 cm thick (k = 0.791 W/m°C) than a electrical supply line running outside to an exterior mounted light.
A small boat is moving at a velocity of 3.35 m/s while it is accelerated by a river current perpendicular to the initial direction of motion. If current acceleration is 0.750 m/s^2, what will the new velocity of the boat be after 33.5 s.
Lets suppose if a pure Si crystal has 5 X 10 28 atoms m -3. It is dopped by 1 PPM concentration of pentavelents As( arsenic)
A speeding motorist traveling with velocity Vm is spotted by a police car.find The velocity of the police car when it catches up to the motorist
q1. a system consists of a uniform electric field of 42.6 nc directed in the positive x direction together with a
A cylindrical 87.50ohm resistor is made from a coil of copper wire whose total mass is 18.0 g, What is the diameter of the wire
Suppose a particle with mass m is released from rest in a uniform gravity g, write down the relativistic equation of motion and find an expression that gives the relationship between velocity and time
Ions having equal charges but masses of M and 2M are accelerated through the same potential difference, what is the radius of the arc followed by the lighter
a child is swinging on a swing set. if the chains holding the swing are 5m long, how fast will the child be moving at the lowest point in the swing
A cylinder which is in a horizontal position contains an unknown noble gas at 5.26 Ã- 104 Pa and is sealed with a massless piston. calculate the change in internal energy of the system
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