What is the speed of the ball at that point
A 465 g ball swings in a vertical circle at the end of a 1.3 m-long string. When the ball is at the bottom of the circle, the tension in the string is 21 N. What is the speed of the ball at that point?
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A tube of radius 5 cm is connected to tube of radius 1 cm as shown above. Water is forced through the tube at a rate of 10 liters/min. The pressure in the 5 cm tube is 1×105 Pa. The density of water is 1000 kg/m3. Assume that the water is no
A tortoise can run with a speed of 0.13 m/s, and a hare can run 20 times as fast. In a race, they both start at the same time. What is the length of the race?
How many litres of fuel did he deliver? the coefficient of volume epansion for diesel is 9.5*10 to the power of negative 4 degrees celcius an the coefficient of linear expansion for the steel truck is 11 times 10 mto the power of negative 6 degree
When people sleep, their metabolic rate is about 2.6*10^-4 C/(s*kg). How many calories does a 75 kg person metabolize while getting a good night's sleep of 8.5 hours?
A 15.0 m long conveyor belt, inclined at 27.0°, is used to transport bundles of newspapers from the mail room up to the cargo bay to be loaded on delivery trucks. Each newspaper has a mass of 1 kg and there are 27 newspapers per bundle. Determ
A skater of mass 70.5 kg initially moves in a straight line at a speed of 4.80 m/s. The skater approaches a child of mass 41.5 kg, whom he lifts on his shoulders. Assuming there are no external horizontal forces, what is the skater's final velocit
A frog in a hemispherical bowl finds that he just floats without sinking in a fluid whose density is 1.35g/cm^3. If the bowl has a radius of 6.0 cm and negligible mass, what is the mass of the frog?
A jet plane lands with a speed of 83 m/s. From the instant the plane touches the runway, what is the minimum time needed before it can come to rest?
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