William Curry
2021-12-16
Answered

What is the molar mass of cholesterol if 0.00105 mol has a mass of 0.406 g?

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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 2021-04-21

The arm weighs 44.0 N. The force of gravity acting on the arm acts through point A. Determine the magnitudes of the tension force t in the deltoid muscle and the force s of the shoulder on the humerus (upper-arm bone) to hold the arm in the position shown.

t=N

s=N

t=N

s=N

asked 2021-02-21

A 0.75-kg ball is attached to a 1.0-m rope and whirled in avertical circle. The rope will break when the tension exceeds 450 N. What is the maximum speed theball can have at the bottom of the circle without breaking the rope?

A) 38 m/s

B) 16 m/s

C) 12 m/s

D) 24 m/s

E) 32 m/s

A) 38 m/s

B) 16 m/s

C) 12 m/s

D) 24 m/s

E) 32 m/s

asked 2021-03-26

A pair of forces with equal magnitudes, opposite directions,and different lines of action is called a "couple". When acouple acts on a rigid object, the couple produces a torque thatdoes not depend on the location of the axis. The drawing shows acouple acting on a tire wrench, each force being perpendicular tothe wrench. Determine an expression for the torque produced by thecouple when the axis is perpendicular to the tired and passesthrough (a) point A, (b) point B, and (c) point C. Express youranswers in terms of the magnitude F of the force and the length Lof the wrench

asked 2022-01-14

Find the dual of each of these compound propositions. $p\wedge (q\vee (r\wedge T))$

asked 2021-12-18

What is the x-component of the velocity (in m/s) for the object having the x(t) graph shown above?

asked 2021-02-21

A crate of fruit with mass 35.0 kg and specific heat capacity 3650 J/Kg . K slides down a ramp inclined 36.9 degrees below the horizontal. the ramp is 8.00 m long.

a) If the crate was at the rest the top of the incline and has a speed of 2.5o m/s the bottom how much work was done on the crate by friction?

b) If an amount of heat equal to the work done by friction goes into the crate of fruit and the fruit reacches a uniform final temperature, What is the temperature change?

a) If the crate was at the rest the top of the incline and has a speed of 2.5o m/s the bottom how much work was done on the crate by friction?

b) If an amount of heat equal to the work done by friction goes into the crate of fruit and the fruit reacches a uniform final temperature, What is the temperature change?