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A 150-lb fireman is holding a hose which has a nozzle diameter of 1 inch and hose diameter of 2 inches. If the velocity of the water at discharge is 60 ft/s - determine the resultant normal and frictional force acting on the man's feet at the ground. Neglect the weight of the hose and the water within it. yw = 62.4 lb/ft3 .
Until The end of 19th century (Newtonian Mechanics). 1905 Einstein special Relativity (C play a fundamental role),It does not modify distinction b/w matter & Radiation (referred as classical).
The positioin of a particle moving along the x-axis is given by x =( 21+22t-6t^2)m, where t is in s. What is the average velocity during the time interval t= 1.0 s to t = 3.0s
1. in a particel accelerator protons are fired at a stationary target and collide elastically with the nuclei of the
Two cars start from rest at a red stop light. When the light turns green, both cars accelerate forward. What is the acceleration of the yellow car
A parallel-plate air capacitor has a capacitance of 400pF and a charge of magnitude 0.150\muC on each plate. What is the area of each plate
a car slows down uniformly from a speed of 45 kmh to rest with an acceleration of -0.50 ms2. how long did it travel
Initially a wheel rotating about a fixed axis at a constant angular deceleration of 0.9 rad/s2 has an angular velocity of 0 rad/s and an angular position of 7.1 rad. What is the angular position of the wheel
A red blood cell typically carries an excess charge of about –2.5×10–12 C distributed uniformly over its surface. The red blood cells can be modelled as spheres approximately 6.6 m in diameter and with a mass of 9.0×10–14 kg.
A piece of Nichrome wire has a radius of 5.2 x 10-4 m. It is used in a laboratory to make a heater that dissipates 3.50×102 W of power when connected to a voltage source of 100 V. Ignoring the effect of temperature on resistance, estimate the necessa..
A block of mass M is released from rest at the top of curved frictionless ramp. The block is at the left of the ramp at a height h above the horizontal. Calculate height of ramp from which small block was released
a 2 kg block is taken from a furnace where its temperature was 650 degree c and placed on a large block of ice at 0
Now suppose that the boundary occupies the x-y plane (z=0). In medium 1 vector A→ has components A→ = B→ =Ao(x^+z^) and k1=1. In medium 2, k2 =2. Find the components of A→ and B→f in medium 2.
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