Daniell Phillips
2021-12-15
Answered

A water pump increases the water pressure from 15 psia to 70 psia. Determine the power input required, in hp, to pump 0.8 ft^3/s of water. Does the water temperature at the inlet have any significant effect on the required flow power? Answer: 11.5 hp

You can still ask an expert for help

asked 2020-11-22

The specific heat of lead is 0.030 cal/g.C. 300 grams of leadshot at 100C is mixed with 100 grams of water at 70C in an insulated container. The final temperature of the mixture is:

A) 100C

b) 85.5C

c)79.5C

d) 74.5C

e)72.5C

A) 100C

b) 85.5C

c)79.5C

d) 74.5C

e)72.5C

asked 2020-11-01

A horizontal force of 210N is exerted on a 2.0 kg discus as it rotates uniformaly in a horizontal circle ( at arm's length ) of radius .90 m. Calculate the speed of the discus

asked 2021-04-15

A car initially traveling eastward turns north by traveling in a circular path at uniform speed as in the figure below. The length of the arc ABC is 235 m, and the car completes the turn in 33.0 s. (Enter only the answers in the input boxes separately given.)

(a) What is the acceleration when the car is at B located at an angle of 35.0°? Express your answer in terms of the unit vectors

1. (Enter in box 1)

(b) Determine the car's average speed.

3. ( Enter in box 3) m/s

(c) Determine its average acceleration during the 33.0-s interval.

4. ( Enter in box 4)

5. ( Enter in box 5)

asked 2021-02-18

In an industrial cooling process, water is circulated through a system. If the water is pumped with a speed of 0.45 m/s under a pressure of 400 torr from the first floor through a 6.0-cm diameter pipe, what will be the pressure on the next floor 4.0 m above in a pipe with a diameter of 2.0 cm?

asked 2020-10-23

How many of the following are found in 15.0 kmol of benzene(C6H6)?

(a) lb-mole C6H6

(b) mol (g*atom) C

(c) mol H

(d) g C

(e) g H

(f) molecules of C6H6

(g) kg C6H6

(h) mol C6H6

(a) lb-mole C6H6

(b) mol (g*atom) C

(c) mol H

(d) g C

(e) g H

(f) molecules of C6H6

(g) kg C6H6

(h) mol C6H6

asked 2022-01-05

A 0.500-kg mass on a spring has velocity as a function of time given by ${v}_{x}\left(t\right)=\left(3.60c\frac{m}{s}\right\})\mathrm{sin}[\left(4.71ra\frac{d}{s}\right)t-\left(\frac{\pi}{2}\right)]$ . What are (a) the period; (b) the amplitude; (c) the maximum acceleration of the mass; (d) the force constant of the spring?

asked 2021-07-23

To prove:

Given:

The diagram:

The line