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In order to pull out the nail at B, the force F exerted on the handle of the hammer must produce a clockwise moment of 500 lb is ?^? in. about point A. Determine the required magnitude of force F.
Car C and car D are both stopped at the similar intersection. At t=0 sec car C starts to accelerate from rest at a constant acceleration of 1.5 m/s2. Determine how far have the cars travelled when the meet
A bowling ball of mass 1 kg hits a spring with velocity 1 m/s. The spring constant is also 1 (how convenient!). What is the maximum compression of the spring in centimeters
a train traveling at v0 25.0 ms begins to brake by applying a velocity-dependent instantaneous acceleration av alpha
An aluminum calorimeter with a mass of 100 g contains 250 g of water. The calorimeter and water are in thermal equilibrium at 10°C. Determine the specific heat of the unknown sample
Meteroids often move at high speeds relative to Earth. If meteroids approach Earth closely enough to hit our atmosphere, find the meteroid's kinetic energy
The treasure map in the figure gives the following directions to the buried treasure, Which direction should you go to reach the treasure and How far should you go to reach the treasure
A real heat engine working between heat reservoirs at 987 K and 659 K produces 540 J of work per cycle for a heat input of 2400 J.
A jet airplane is at level flight. The mass of the airplane is m=8870 kg. What is the magnitude of the lift force acting on the plane
A jet plane flying at a constant speed v at an altitude h = 10 km is being tracked by radar located at O directly below the line of flight. determine the value of r at this instant and the magnitude of the velocity v of the plane
A radioactive Phosphorus nucleus by Atomic number 15 and mass number32, beta decays by emitting an Electron and an Antineutrino. (The above isotope of Phosphorus has a mass of m=31.973u) What is the atomic number and mass number of the daughter nucle..
A horizontal pipe of diameter 120 mm has a constriction of diameter40 mm. The velocity of water in the pipe is 60 m/s and the pressureis 150 kPa. What is the pressure in the constriction
A charge of 6.22 mC is placed at each corner of a square 0.170 m on a side. Determine the magnitude of the force on each side
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