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Can someone help me solve problem 181, chapter 12 from Engineering Mechanics statics and dynamics, 13th edition. The question is, simply, r = 4sin(2theta), theta = (3t^(3/2))rad. Determine the velocity and acceleration when theta = 60 degrees.
A 4.0-m-long iron bar of uniform cross section is held perpendicular to the wall by a wire from the end of the bar to the wall. what is the magnitude of the vertical component of force produced by the wall
When blue light of wavelength 440 nm falls on a single slit, the first dark bands on either side of center are separated by 49.0 degrees. Determine the width of the slit
Two identical positive charges exert a repulsive force of 6.6 x10-9 N when separated by a distance of 5.4 10-10 m. what is the charge of each.
A 12.3 µC particle with a mass of 2.53E-5 kg moves perpendicular to a 1.23 T magnetic field in a circular path of radius 25.6 m. How long will it take the particle to complete one orbit
A typical jetliner lands at a speed of 148 mi/h and decelerates at the rate of (11.6 mi/h)/s. what is the total displacement of the jetliner
A solution has a hydronium-ion concentration of 1.0 x 10-5 mol per liter. What is the hydroxide-ion concentration of this solution
A 8000 %u03A9 resistor is joined in series with a 10 %u03BCF capacitor. What is the capacitive time constant of this combination
Two circus performers, Jack and Jill, whose total mass is 120 kg, start a swing which is 5 m long such that initially the rope attached to their swing makes an angle of 36 degrees with the horizontal.
A 50-g block of copper at -15?C is added to 100g of water in a 71-g aluminum cup. The cup and the water have an initial temperature of 4.0?C. Find the equilibrium temperature of the cup
A 10.0kg stone slides down a snow-covered hill (the figure (Figure 1) ), leaving point A with a speed of 10.0m/s. How far will the stone compress the spring
a person has a near point of 40 cm and a far point of 2.0 m. when looking through lenses of focal length -2.0 m, what is the nearest an object can be to be seen clearly
Two people push a stalled car at its front doors, each applying a 250n force at 25 degree to the forward direction. How much work does each person do pushing the car 5.4 m?
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