Find the value of force which must move the mass
Calculate the value a force must have to keep a 20 kg mass moving up a plane inclined at 34 degrees at a constant speed. Is there an angle for the plane at which no horizontal force can keep the mass moving at constant speed? if so, what is it?
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If the house is losing heat at a rate of 62,000 kJ/h, determine the minimum rate of heat supply to the heat engine required to keep the house at 22ºC.
An airline carriers 300 passengers and has doors with a height of 76 inch. Heights of men are normally distributed with a mean of 69.0 in and a standard deviation of 2.8 in.
What is the magnitude of the gravitational force due to the sphere on a particle of mass 4.2 kg located at a distance of 69 m from the center of the sphere?
The state of wyoming is bounded by the meridians 111.3 degrees and 104.3 degrees west longitude and by the circles 41 degrees and 45 degrees north latitude.
Explain how two sets of data could have equal means and modes but still differ greatly. Give an example with two data sets to illustrate.
A new indicator dye, HIn, is to be tested for a pKa experiment. In .100 M acetate buffer (pH = 4.00), the dye is20% In- (base) and 80% HIn (acid). In other words, the pKa is4.60.
Determine the minimum power required to run this heat pump if heat is extracted from (a) The outdoor air at 25°F and (b) The well water at 50°F.
A uniform solid spherical planet of radius 4978000 m produces a gravitational acceleration of 8.9 m/s^2 on its surface. At what two distances from the center of the sphere is the gravitational acceleration one third of the surface value?
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