50 points!! Will mark as brainliest (please help) ~~

Use the following formula to answer the following equations.

Elasticity = % change in QD

% change in Price

% Change = Original Number- New Number X 100

Original Number

Find if the demand for the good using the equation then figure out if the good is elastic, inelastic, or unitary elastic.

REMEMBER: E>1 ELASTIC

E<1 INELASTIC

E=1 UNITARY ELASTIC

Solve the following problems.(3 points each)

The price of Coke changes from $1.00 to $1.50 and the quantity from 2 to 1/2 what would the elasticity be? What kind of product is it? How do you know?

Astone dropped into a well is heard to strike the water after 8seconds. find the depth of the well if the velocity of sound is 350m/s

Ahorizontal wire is tied to supports at each end and vibrates in its second-overtone standing wave. the tension in the wire is 5.00 n, and the node-to-node distance in the standing wave is 6.28 cm. (a) what is the length of the wire? (b) a point at an anti- node of the standing wave on the wire travels from its maximum upward displacement to its maximum downward displacement in 8.40 ms. what is the wire's mass?

The intensity of a polarized electromagnetic wave is 12 w/m^2. part a) what will be the intensity after passing through a polarizing filter whose axis makes the angle θ=0∘ with the plane of polarization? part b) what will be the intensity after passing through a polarizing filter whose axis makes the angle θ=30∘ with the plane of polarization? part c) what will be the intensity after passing through a polarizing filter whose axis makes the angle θ=45∘ with the plane of polarization? part d) what will be the intensity after passing through a polarizing filter whose axis makes the angle θ=60∘ with the plane of polarization? part e) what will be the intensity after passing through a polarizing filter whose axis makes the angle θ=90∘ with the plane of polarization?