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Anonymous users2024-02-16x (10 ) m = x (10 0 5 ) dm = x (10 0 6 ) cm = x (10 to the fourth power ) mm ; x(negative power of 10) m = x (negative power of 10) km ; 10nm = x (minus sixth power of 10) cm = x (minus eighth power of 10) m ; min=（9000 ）s ；120s=(2 )min=( ) The height of a door is m)2The height of a person is 165 (cm)3The thickness of a computer floppy disk is ).
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Anonymous users2024-02-15x （10）m= x（10^2 ）dm= x （10^3 ）cm= x （10^4 )mm ； x（10^-2 ）m= x（10^-5 ）km ；10nm= x（10^-6 ）cm= x（10^-8 ）m ； min=（9000 ）s ；120s=(2)min=(1 30)The height of a door is )2.The height of a person is 165 (cm)3The thickness of a computer floppy disk is ).
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Anonymous users2024-02-1410 100 3rd power of 10 4th power 10 2nd power 10 2nd power 10 5th power 10 4th power 10 4th power 10 3rd power 150 3rd power 2 1 m cmmm
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Anonymous users2024-02-131 m = 10 decim = 100 cm = 10 6 microns.
Answer: 3 10 7
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Anonymous users2024-02-12Pressure limiting valve gravity g=mg=
The cross-sectional area of the outlet hole s= r = d 4 = m = the pressure generated by the pressure limiting valve p = g s =, this is the maximum pressure difference, and the force that can be withstood at least at the interface of a standard atmospheric pressure cooker cover is.
f=ps pot=
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Anonymous users2024-02-11The maximum pressure difference between the inside and outside of the pressure cooker is the pressure caused by the pressure limiting valve. p=g/s=
How many standard atmospheres p = standard atmospheric pressure = standard atmospheric pressure.
At least how much force can a pressure cooker lid withstand? f=ps=
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Anonymous users2024-02-10The charge carried by the glass rod is positive.
Number of charges: =2 10 10
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Anonymous users2024-02-09Solution: Silk sassafras glass rod, silk is negatively charged, glass rod is positively charged.
The charge carried by the glass rod is positive, and according to the conservation of charge, the charge charge can be known as.
Happy New Year!
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Anonymous users2024-02-08The glass rod rubs against the silk to make the glass rod carry a charge to the power of -9, and the charge carried by the glass rod is a positive charge, and the charge with it = 1e=
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Anonymous users2024-02-07The charge carried by the glass rod is positive, and the amount of charge carried by 10 electrons to the 18th power is 1 coulomb.
It's not typeset, I'll do it.
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