What is biodiversity? q

A worker stands still on a roof sloped at an angle of 35° above the horizontal. He is prevented from slipping by static frictional force of 560 N. Find the mass of the worker.

Which type of stimulus is detected by photoreceptors?

Consider an NACA 2412 airfoil with a 2-m chord in an airstream with a velocity of 50 m/s at standard sea level conditions. If the lift per unit span is 1353 N, what is the angle of attack

A power drill uses 13.73 amps of current and has a power rating of 1140 watts. What voltage does the drill require 7 amps 4.5 amps 7 ohms 4.5 ohms

Identify the true statement. A. A particle of water in a wave moves in a circular motion when viewed in cross section. B. Constructive interference of comparably sized swells tends to cancel them out and produce smooth water. C.

The suns energy reaches the sun by Conduction Convection Radiation Fusion

A bowler applies 14 N of force to a 4.5 kg bowling ball. Find the ball's acceleration.

You are given two objects of identical size, one made of aluminum and the other of lead. You hang each object separately from a spring balance. Because lead is denser than aluminum, the lead object weighs more.

Why are the oldest parts of the ocean floor no older than about 200 million years

A firefighter with a weight of 707 N slides down a vertical pole with an acceleration of 2.79 m/s2, directed downward. (a) What is the magnitude of the vertical force on the firefighter from the pole?