Question

Convert

a) 760 miles/hour to meters/second
b) 921 kg/cubic meter to pound mass/cubic foot
c) 5.37 x 10^3 kJ/ min to hp.

Answer 1

(a)
`1.308* 10^(-4)m/sec`

(b)57.33831 pound/cubic feet

(c)120.1095 hp

Step-by-step explanation:

We have

(a) 760 miles / hour

We know that
`1\ mile\ =0.00062m`

And 1 hour = 60×60=3600 sec

So
`760miles/hour=(760* 0.00062meter)/(3600sec)=1.308* 10^(-4)m/sec`

(b) 927 kg/cubic meter to mass/cubic foot

We know that 1 kg = 2.20 pound

So 921 kg = 921×2.20=2026.2 pound

We know that 1 cubic meter = 35.31 cubic feet

So 57.33831 pound / cubic feet

(c) We have to convert to hp

`5.37* 10^3kj/min=(5.37* 1000kj)/(60sec)=89.5kj/sec`

We know that 1 kj /sec = 1.341 hp

So 89.5 kj/sec = 89.5××1.341=120.1095 hp