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a football player kicks a ball at angle of θ = 45degree above the horizotal. The initial speed of the ball in22m/sec. Ignoring the air resistance find
a) the maximum heigh the ball can attain.
b) the time of the flight between kick off and landing.
c) therange (x) of the football.
Two forces, F? 1 and F? 2, act at a point. F? 1 has a magnitude of 8.20N and is directed at an angle of 62.0?, below the negative xaxis in the third quadrant What is the x component of the resultant force
The magnetic force acting on a wire that is perpendicular to a 3.7 T uniform magnetic field is 6.4 N. If the current in the wire is 5.0 A, what is the length of the wire that is inside the magnetic field? Answer in units of m.
An electric field of intensity 3.4 kN/C is applied along the x-axis. compute the electric flux through a rectangular plane 0.350 m wide and 0.700 m long if the following conditions are true.
Nichrome wire of cross-sectional radius 0.754 mm is to be used in winding a heating coil. calculate the length of wire you must use to wind the coil
A transformer operating from 79 V (rms supplies a 18.3 V lighting system for a garden. Find the equivalent resistance of the system
What is the decibel level required for human perception
Calculate the rates of solar heating
A small oven has a surface area of 0.26 m2. The insulated walls are 1.3 cm thick with an average thermal conductivity of 0.040 W/moC. What is the rate of heat loss
A rectangular plate has a length of (20.4 0.2) cm and a width of (8.7 0.1) cm. Calculate the area of the plate
A golf ball is sent flying at an angle of 35 degrees for a total flight time of 5 seconds. Landing at the same level from which it took off, what was the horizontal distance in feet traveled by the ball
A small helium-neon laser emits red visible light with a power of 3.2 mW in a beam with a diameter of 2.5 mm. what is the total energy contained in a 1.00 m length of the beam
A 71.0kg football player is gliding across very smooth ice at 2.00m/s, What is the player's speed afterward if the ball is thrown at 18.0m/s relative to the ground
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