SciTech needs to hire an engineer to develop a prototype for a project. The company asks each engineer to provide a cost and time estimate for the work. Each bid is shown in the table. Which engineer would be the most cost-effective for the project?

Camilla
John
Nora
Oracio

Oracio

Explanation:

Mutiply the cost per hour by the time to complete the job

Camila 40x20=800

John 30x30= 900

Nora 20x40=800

Oracio 15x50=750

here we know that ball will drop down by total distance 3.2 m

so here we know that

now using kinematics

now in the same time it will cover horizontal distance of 0.75 m

so speed of the ball will be

b.transmitters send radio waves, and receivers capture radio waves.