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Supposing that the wave would encompass an amplitude of the six story building with 4m per story, v) write down the equation of the wave (as a cosine wave).
An elevator of 612 kg begins from rest and moves upward for 2.90 s with constant acceleration till it reaches the cruising speed, 1.65 m/s. (i) Determine the average power of the elevator motor thro
Acetylene is hydrogenated to form ethane, C2H6. The feed to the reactor contains 1.5 mol H2/mol C2H2. Determine the stoichiometric reactant ratio and the yield ration ( kmol C2H6 formed/kmol H2reac
A block having mass 2.50 kg is pushed 2.80 m all along a frictionless horizontal table by a constant 12.0 N force directed 25.0° beneath the horizontal. (i) Find out the work done by the exerted
The box consists of a mass of 21.0 kg, and the coefficient of kinetic friction among box and floor is 0.300. (i) Determine the acceleration of the box.
Determine the x- and y-intercepts; find whether graph crosses or touches x-axis at each intercept; and graph function.
Determine the numbers of V atoms are present in a unit cell when the Vanadium crystallizes in a body-centered cubic lattice (the V atoms occupy only the lattice points)
The distance among the lenses of the instrument is 17.0 cm and the final image is virtual and at infinity. Determine how distant from the objective lens is the object?
A camera takes a absolutely exposed picture if the lens diaphragm is set to f/4 and the shutter speed is 1/250 s. When the diaphragm is altered to f/11, what must the new shutter speed be so that the
From the point on the river, two boats are driven in opposite directions, one at 5 mph and other at 13 mph. Find time when they will be 90 miles apart. Illustrate set-up.
Determine the number of grams of ethylene glycol (C2H4(OH)2), are required per kilogram of water to protect the radiator fluid against freezing down to -10degrees Celsius?
After a fall of a 131.1 kg climber is dangling from the 9.3 m long rope of diameter 7.296 mm which stretched 3.864 cm. For the rope compute i) the strain, ii) the stress, and iii) the Young's modulu
Determine the magnitude and direction of the force on the ladder by the ground just prior to the window breaks. Write the force direction as an acute angle in degrees above the ground.
Determine constant rate of change of number of North American business email users? Use model to find number of North American business email users in 2011.
An automobile of mass 1033.6 kg consists of an axle spacing 420.9 cm with the center of mass 48.36cm behind the front axle. Find the force
How do you calculate the composition in volume fraction and the composition in weight fraction of a gas with the following composition? Methane .870, ethane .049, propane .036, Butane .025, n
Find the moment of inertia of the box about E? Determine the tension in each and every cable? (The moment of inertia of a cube of side a about an axis via the centers of two opposite faces is ma^2/6
The ball launcher in a pinball machine consists of a spring which has a force constant of 1.39 N/cm. The surface on which the ball moves is inclined a = 17.7o with respect to the horizontal.
A 75-hp engine is required to propel the certain boat at 14 knots. Determine power required to drive boat at 19 knots.
Determine the velocities of the two people after the snow-ball is exchanged? Disrespect of the friction between the skates and ice.
The intercept corresponds to zero mass and zero volume so discuss what value should theoretically be acquired for the intercept on a graph of mass vs. volume?
The two cars collide. After the collision, car A comes to a stop and car B has a speed of (1.97 ± 0.02) m/s in the positive X-direction. i) Compute the net Initial kinetic energy of the two c
A potter's wheel moves uniformly from the rest to an angular speed of 0.23 rev/s in 33 s. (i) Determine its angular acceleration in radians per second per second.
What volume does the student require to pipet out if she wants to use 0.65 g when a student is given a liquid, which is having the density of 0.779 g/mL.
The electric motor rotating a workshop grinding wheel at a rate of 99 rev/min is switched off. Suppose the wheel consists of a constant negative angular acceleration of magnitude 2.40 rad/s2 (i) De