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A man who is 1.2 meter tall throws a ball with a speed of 5.1 m/s at an angle of 27o above the horizontal. Determine the x and y components of the velocity (in m/s) of the ball the instant before it strikes the floor? The acceleration due to gravity is 10 m/s2.
the natural period of an undamped system is 3 sec but with an damping force proportional to the velocity the period
The green line of gaseous mercury at 546 {\rm nm} falls on a double-slit apparatus. If the fifth dark fringe is at 0.145{^\circ} from the centreline, what is the slit separation?
(8c1p14) Time standards are now based on atomic clocks. A promising second standard is based on pulsars, which are rotating neutron stars, What is the mass of gasoline (? = 0.680 g/cm3) in a 94.6 L gasoline tank? (kg)
A 70kh man jumping from a window lands in an elevated firerescue net 11.0 m below the window. find the leastic potential energy of the net when it is stretched by 1.50 m
The pressure of sulfur dioxide (SO2) is 2.54 x 104 Pa. Find the translational rms speed of the sulfur dioxide molecules
You have been called to testify as an expert witness in a trial involving an automobile accident, determine that the coefficient of kinetic friction between the wheels and the pavement at the time of the accident was 0.59
The bullet becomes embedded in the block. If the bullet-block system compresses the spring by a maximum of 88.0 cm, what was the speed of bullet at impact with the block.
The wheel of a bicycle have an angular velocity of +20.0 rad/s. Then, the brakes are applied. In coming to rest, each wheel makes an angular displacement of +15.92 revolutions.
1. an 80 kg man climbs a 50 m-high hill in 20 minutes. what is the average power in watts he expends climbing the hill?
Suppose you decide to travel to a star 85 light years away at a speed that tells you the distance is only 25 light years. How many years would it take you to make the trip
An L-R-C series circuit consists of a 2.50?F capacitor, a 5.50mH inductor, What is the maximum current through the capacitor
On a frictionless, horizontal air track, a glider oscillates at the end of an ideal spring of force constant 4.00. Find the maximum force the spring exerts on the glider
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