7. Zena has a model plane attached to a rod as shown below.
The plane is balanced by a sliding counterweight.
sliding
counterweight
10 cm
20 cm
rod
pivot
5 N
not to scale
St George's Catholic School
Page
(a) The rod is balanced horizontally.
Calculate the turning moment produced by the counterweight about the
pivot.
Give the unit.
KANNN
2 mark​

Like a key in a lock, the shape of the. must bind with the. of the recieving neuron

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?

A2.0 μf capacitor and a 4.0 μf capacitor are connected in series across a 0.827-kv potential. the charged capacitors are then disconnected from the source and connected to each other with terminals of like sign together. find the voltage across each capacitor.