If a 72-candela light source is located at a distance of 3 meters from a surface, the illuminance on the surface is

A string is stretched to a length of 361 cm and both ends are fixed. If the density of the string is 0.039 g/cm, and its tension is 923 N, what is the fundamental frequency? Answer in units of Hz.

what is the mass of a cannon ball if a force 2500 N gives the cannon ball an acceleration of 200 m/s squared?

If a car is traveling at a speed of 45 miles per hour, how far can it travel in 40 minutes?

A wheel rotates through 5.7 rad in 2.6 s as it is brought to rest with constant angular acceleration. Determine the wheel's initial angular speed before braking began.

What is a fault? A. the name for 2 opposing forces B. a type of crust that moves under heavier crust C. A crack in earths crust where movement occurs D. A volcanic region where new material is being created

While playing with her 5 year old cousin, a Physics 135 student pushed him forward on his scooter. She pushes with a force of 50 Newtons for 3.5 seconds. If the boy and the scooter together have a mass of 30 kg, what is their final velocity? a. 2.

3. A 120.0 V generator supplies 3.0 kw of power. How much current ca the generator deliver?

An apple drops from a tree and hits the ground in 1.5s what is its speed just before it hits the ground?

Sound travels slow in cold air. Why does the speed of sound depend on air temperature?

A tow truck pulls a 500 kg car so that the car accelerates 2 m/s2. What is the net force on the car? 250 N 498 N 1000 N 502 N