Ball bearings or roller bearing
They are made in various designs to reduce friction. They reduce friction because rolling friction is smaller than sliding friction. These bearings are also lubricated to further improve their function. ..
They are made in various designs to reduce friction. They reduce friction because rolling friction is smaller than sliding friction. These bearings are also lubricated to further improve their function. ..
..Ball
/roller bearing help to convert sliding friction into a milder form - rolling friction. Rolling friction is lesser than sliding frictio..
There are 20 bears in a zoo. What will be their population after 3 yea..
There are 20 bears in a zoo. What will be their population after 3 years, if the population doubles each year? => 160 bears or 260 bears or 60 bears or 210 bears..
How many balls are there in 7 boxes, if each box contains 3 balls?
How many balls are there in 7 boxes, if each box contains 3 balls? => 10 or 21 or 18 or 4..
Where is the ball placed?
Where is the ball placed? => (4, 1) or (3, 4) or (3, 5) or (4, 3)..
Identify the set that has 7 balls.
Identify the set that has 7 balls. => Figure 1 or Figure 3 or Figure 2 or Figure 4..
A bag contains 5 red balls, 4 green balls, and 3 white balls. If a per..
A bag contains 5 red balls, 4 green balls, and 3 white balls. If a person picks a ball at random, then find the probability that it is either a red ball or a green ball. => 5 12 or 3 4 or 7 12 or 2 3..
Urn 1 contains 4 red balls and 5 black balls. Urn 2 contains 3 red bal..
Urn 1 contains 4 red balls and 5 black balls. Urn 2 contains 3 red balls and 3 black balls. Urn 3 contains 2 red balls and 1 black ball. If an urn is selected at random and a ball is drawn, then what..
A bag contains 8 burgundy balls, 3 purple balls and 8 violet balls. Ex..
A bag contains 8 burgundy balls, 3 purple balls and 8 violet balls. Express verbally the probability of choosing a pink ball. => 3 out of 19 or 0 out of 19 or 1 out of 19 or 2 out of 19..
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