You're engineering a new cell phone, and you'd like to incorporate the antenna enwrely within the phone, which is 9 cm long when closed. the antenna is to be a quarter-wavelength long-a common design for verwcally oriented antennas. if the cell-phone frequency is 2.4 ghz, will the antenna fit?

Explain to someone who knows nothing about fossils the study of invertebrate paleontology and how it scientists understand the history of the earth. be sure your explanation contains a minimum of two complete sentences.

Debbie places two shopping carts in a cart corral she pushes the first cart which then pushes a second cart what force is being exerted

Aresistor with an unknown resistance is connected in parallel to a 9 ω resistor. when both resistors are connected in parallel to an emf source of 21 v, the current through the unknown resistor is measured with an ammeter to be 4 a. what is the resistance of the unknown resistor? answer in units of ω.