Q:-How many Mpa are equal to 1 N/mm2 : (a) 144.9. (b) 25.4. (c) 14.7. (d) 1.?
回答 (2)
2015-12-08 3:13 pm
1N/mm^2 = 10^6 N/m^2 = 1.00 MPa
....since there are 10^6 mm^2 in 1 m^2
....since there are 10^6 mm^2 in 1 m^2
2015-12-08 6:35 am
Pa has units of N/m^2.
1 N/mm^2 * (1000mm / m)^2 = 1*10^6 N/m^2
Of course there are 1*10^6 Pa per 1 MPa.
1*10^6 N/m^2 * (1 Mpa / 1E6 Pa) = 1 MPa
If you knew that 1 N/m = 1 Pa, you'd realize the answer wouldn't have a decimal in it. That immediately reduces the answer to D (1 MPa).
1 N/mm^2 * (1000mm / m)^2 = 1*10^6 N/m^2
Of course there are 1*10^6 Pa per 1 MPa.
1*10^6 N/m^2 * (1 Mpa / 1E6 Pa) = 1 MPa
If you knew that 1 N/m = 1 Pa, you'd realize the answer wouldn't have a decimal in it. That immediately reduces the answer to D (1 MPa).
收錄日期: 2021-05-01 16:18:36
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