Tutors Answer Your Questions about Reduction-of-unit-multipliers (FREE)
Question 1054537: If parameter in terms of Fundamental quantities like,
Parameters SI UNITS DIMENSION
m kg [M^1 l^0 T^0]
r,l m [M^0 l^1 T^0]
V m/s [M^1 l^0 T^-1]
Torque Nm [M^1 l^2 T^-2]
inersia kg.m^2 [M^1 l^2 T^0]
How comes this Dimension from Si units ? Detailed explanation ?
Click here to see answer by Fombitz(32388)  |
Question 1066144: If an object is dropped from a height of h meters, the velocity v (in m/sec) at impact is given by v= the square root of 2gh , where g= 9.8 m/sec^2 is the acceleration due to gravity.
a. Determine the impact velocity for an object dropped from a height of 40m.
I Know the answer to this is 28 m/sec.
b. Determine the height required for an object to have an impact velocity of 18.8 m/sec (=42 mph). Round to the nearest tenth of a meter.
Cannot figure part b out.. Help???
Click here to see answer by ikleyn(52781)  |
Question 1071401: 1. Three times a number added to 1 is 40. Find the answer
2. Choose the best estimate for the product 4 12/17 * 1 1/7
3. The area of the rectangle is 22 square feet. Its width is 1 1/5 feet find its width
4. evaluate the expression 4x(3 to the 3rd power)-z ( x=-4, z =-3)
5. find the missing number 3/24=1/x
Click here to see answer by Alan3354(69443)  |
Question 1071401: 1. Three times a number added to 1 is 40. Find the answer
2. Choose the best estimate for the product 4 12/17 * 1 1/7
3. The area of the rectangle is 22 square feet. Its width is 1 1/5 feet find its width
4. evaluate the expression 4x(3 to the 3rd power)-z ( x=-4, z =-3)
5. find the missing number 3/24=1/x
Click here to see answer by ikleyn(52781)  |
Question 1075815: A diagram shows a bike which has a rear wheel, diameter 70 cm, a rear sprocket with a diamter 8 cm, and the front sprocket with a diameter 20 cm. And the center of front sprocket is 28 cm from the ground. Suppose you were to ride this bike, turning the pedals at a steady rate of 100 rpm. How fast are you traveling, in miles per hour?
Can someone help me how to solve this please? Thank you.
Click here to see answer by Alan3354(69443)  |
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