The voltmeter reads 117 v and ammeter reads 0.13 a .if the resistance of ammeter and voltmeter are 9 kilo ohm and 0.015 ohm respectively ,find the value of r. 3marks

In a wind tunnel the speed changes as the cross sectional area of the tunnel changes. if the speed in a 6' x 6' square test section is 100 mph, what was the speed upstream of the test section where the tunnel measured 20' x 20'? use conservation of mass and assume incompressible flow. conservation of mass requires that as the flow moves through a path or a duct the product of the density, velocity and cross sectional area must remain constant; i.e., that ova-constant. a model is being tested in a wind tunnel at a speed of 100 mph if the flow in the test section is at sea level standard conditions, what is the pressure at the model's stagnation point? (a) the tunnel speed is being measured by a pitot-static tube connected to a u- tube manometer. what is the reading on that manometer in inches of water? (b) at one point on the model a pressure of 2058 psf is measured. what is the local airspeed at that point?

At a construction site a small crane is raising two boxes with weights a s 20 kg and 10 kilograms respectively. if the coefficient of kinetic friction is 0.3 how fast will the boxes accelerate along the plank, once they start to slide?

Arocket blasts off and moves away (distance is increasing) from earth. how is the rocket affected by earth's gravitational pull as it moved further away? the pull of gravity on the rocket remains constant the pull of gravity on the rocket increases the pull of gravity on the rocket decreases the pull of gravity on the rocket reverses