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a box with mass 20kg

which two object have masses 20kg and 15kg are placed on a plane surface.Both have same area.Which one is the correct answer for
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2. asked by sweetie
3. 529 views
Suppose you mix 20kg of oxygen is used to burn 20kg of wood. Energy is given off as heat and light. If all the ashes and gases
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2. asked by Sana
3. 460 views
a 20kg block is connested to a 30kg block by a string that passes over a frictionless pully. the 30kg block is connected to a
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2. asked by sello
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(1)The time for vibration of a viscous-damped spring mass system having a mass of 20kg is 0.30s. When the mass is stationary the
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2. asked by Apanpa1
3. 542 views
A man of mass of 80kg carries a load of bricks of mass 20kg up a vertical ladder of length 6m.what work has he done?
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2. asked by Divine
3. 256 views
A man of mass 90kg carries a block of mass 20kg up a vertical ladder at length 5m. What work has the woman done. (take g 10m /s)
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2. asked by omodele queen
3. 641 views
An object of Mass 450g moving in circular path of radius 17 cm find the centripetal force with hanging mass of 0.20kg
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2. asked by Shair Ali
3. 509 views
a uniform pole,PQ 30m long of mass 4kg is carried by a boy at p and a man 8m away from Q.find the distance from p where a mass
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2. asked by ASIYA
3. 1,474 views
A 2.20kg mass is attached to a spring and placed on a horizontal, smooth surface. A horizontal force of 21.3N is required to
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2. asked by nicole
3. 682 views
A plank 3m long and having a mass of 20kg is supported at its ends. Imagine that a person with a mass of 50 kg stands m from one
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2. asked by Josh
3. 1,161 views