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A spring consists of a force constant of k = 1.0*10^4 N/m. (i) Determine how far should it be stretched for its potential energy to be 80 J?
A skier of 58kg is being pulled up 12 degrees frictionless slope. Determine the power needed for the skier to cover the whole 1.20 km slope in 4.5 min?
A horizontal spring having K=75N/m consists of one end joined to a wall and the other end free. The wad of putty of 85 g is thrown horizontally at 3.4 m/s directly toward the free end. Determine th
Where t is in days, 1 is less than or equal to t less than or equal to 365, and t =1 corresponds to January 1. For what range of values of t is average daily temperature above 70 degrees F?
Determine the kinetic energy of an electron which passes un-deviated via perpendicular electric and magnetic fields if E = 4.0 kV/m and B = 8.0 mT?
The company installed underground cable at price of $300 for first 50ft. (or up to 50ft) and $5 for each foot thereafter. State cost C as the function of length L of underground cable if L>50ft.
A diffraction grating consists of 15,000 lines per inch. Determine the angle of deflection from the incident beam would you observe for light with a wavelength of 650 nm (a maximum) for
When the wavelength of the red light in air is 689 nm and the indices of refraction of the oil and water are 1.45 and 1.33, correspondingly and then find out the minimum thickness of the layer of oi
A diverging thin lens consists of a focal length of 20 cm. A virtual object is positioned on the optical axis 25 cm from the lens.
A concave spherical mirror consists of a radius of 20 cm. A real object is positioned on the optical axis 15 cm from the mirror.
Determine the minimum diameter of the platform which would prevent the jewel from being seen. Suppose that the water surface is calm, the index of refraction of water is 1.33, and the depth of the w
The coefficient of kinetic friction between block and surface is around .20. The bullet remains embedded in the block, which i examined to slide 0.230 m all along the surface before stopping. Determ
Determine monthly payment if financed for 60 months at 0% APR. Determine monthly payment if financed at 2.5% add-on interest for 60 months
The spherical shell of inner diameter R and outer diameter 3R consists of a uniform density e. Find out the magnitude of the gravitational acceleration a distance 2R from the center of the spherical
A block having mass 5.0 kg is pulled across a horizontal surface at a constant speed by a force 14 N directed at 35 degrees from the horizontal. Find out the coefficient of kinetic friction among th
Compute present value of contract on date of first payment if interest rate is 7% per year, compounded continuously.
Determine how far apart should two 1-coloumb objects be positioned so that the coulomb force is equivalent to the earth's gravitational force on a 100 kg mass?
To estimate elevation of the mountain top the surveyor measures angle of elevation from the point 10000ft away and this angle measured 32 degrees. Find elevation of mountain?
Two children, Jason and Betsy, ride on the similar merry-go-round. Jason is at distance R from the axis of rotation; Betsy is at distance 2R from the axis. (i) Evaluate the ratio of Jason's angular
60 ft. ladder is leaning against the building and ladder makes the angle of 65 with ground. How far is foot of ladder from base of building and how high up th building does it reach?
Determine the speed which must a vehicle maintain to drive on the vertical circular wall of radius 20 m when the coefficient of static friction between the vehicle tires and the wall is 0.4?
The sector of the circle has the central angle which has the measure of 95 degrees. If radius of sector is 16 ft., find length of arc subtended and measure of the area of this sector?
A block of 1.2 kg is hung from a vertical spring, causing the spring to stretch by 2.4 cm. Determine by how much farther will the spring stretch when a 0.60 kg block is added to the 1.2 kg block?
Let, consider as a system the Sun with Saturn in a circular orbit around it. Determine the magnitude of the change in the velocity of the Sun relative to center of mass of the system throughout the
Determine the realy zeros using the graphing calculator, relative maxima and minima and range of polymonial function.