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A biconvex lens consists of a focal length of 12cm. A 4cm tall candle is positioned 18cm in front of the lens. Determine the characteristics of the image. Employ the diagram and the lens equation.
Determine the speed of a satellite moving around the earth in a circular orbit which consists of a radius equivalent to four times the earth's radius of 6.38 x 106 m.
i) Determine the wavelength of the sound. ii) Draw the standing wave for the air displacement in front of rock face and find where Grizelda should sit in order to be at node.
A baseball having mass 500 grams is thrown down from bridge 180m above the water having initial velocity of 12 m/s i) Determine the velocity when it strikes the water?
At $6/pound, red snapper alone brings in $1500. How many pounds of every fish does fisherman catches and find price per pound of each?
A car is traveling 80 mi/hr, when the diameter of the wheels are 80 cm i) Determine the angular speed of the wheels?
The high speed industrial drill having diameter of 98 cm builds up at 5.85hp at 1900 Rpm. What torque and force is exerted to the drill bit?
i) Determine what force should be exerted to the small piston when a weight if 1650 lb is to be lifted? ii) Determine the mechanical benefit of the hydraulic jack?
Due to market demand, farmer will grow twice as much wheat as corn. He has assigned $63,750 for total cost of growing all crops. How many acres of every crop must he plant?
Find maximum area of the square with side s tilted, inscirbed in the square with side 1 hint from book(use pythagorean theorem- 4 congruent triangles are made with sides 1-t and t and hypo. s)
The ship leaves port and travels due east 15 nautical miles, then varies course to N 20 degrees W and travels 40 more nautical miles. Determine bearing and distance to port of departure.
Determine value(s) of t, if any, when two countries have same population. When is population of Ecalpon double that of Erehwon?
What water pressure should a pump which is positioned on the first floor supply to encompass water of the twenty-fifth floor of a building having a pressure of 26 1b/in2?
A baseball having mass.025 slug is thrown down with initial speed of 18 mi/hr from a bridge with height of 150 yards i) Determine its velocity when it strike the ground?
A 80 HP pump increases 150ft3 of water to the 8th floor of building when 1ft3 water has mass of 2.3 slug determine the height of each floor?
Determine the magnitude and direction of the car’s acceleration (relative to the road), for each case above, when the car encounters a stretch of frictionless icy (horizontal) road.
On the day of a child's birth, a deposit of $25,000 is made in the trust fund which pays 4% interest, compounded continuously. Find out balance in this account on child's 29th birthday.
A fast train having speed v = 100 m/s moves on a straight track at latitude 60° N. A plumb bob is hanged from the ceiling. Sketch a free-body diagram and determine the angle (from the vertical)
A diameter of a wheel of a motorcycle is 1.2m and its mass is around 200kg it is traveling with angular velocity of 1200 rpm in a curve having the diameter of 50m i) Determine the linear velocity.
Mary, Jim and Candy are playing HALO. Jim obtains twice as many points as Candy but only a third as many as Mary. Combined total of the points is 9000. How many points each player gets?
The ball having mass of 450 gram rotates around the tree having a diameter of 3m and speed 1400 rpm i) Determine the angular and linear speed
A woman of 60 kg runs up a flight of stairs having an augment of 4 meters in a time of 4.2 seconds. Determine the average power did she supply?
Determine the direction of the impulse delivered to the ball by the bat. Suppose that the ball and bat are in contact for 1.5 ms.
The dolomite is a mixed carbonate of magnesium and calcium. Magnesium and calcium carbonates both decompose on the heating to form the carbon dioxide and metaloxides (CaO and MgO).
Sound A measures 20 decibels and sound B is six times as loud as sound A. Determine decibel rating of sound B to nearest integer?