A helical gear has 30 teeth and a pitch diameter of 280 mm. Gear module is 8 and pressure angle normal to tooth is 20°. The force normal to the tooth surface is 4500 N. Determine the kW transmitted at 620 rpm.

A sinusoidally oscillating current I (t) I (t) with an amplitude of 2.55 A 2.55 A and a frequency of 255 cycles per second 255 cycles per second is carried by a long, straight wire. A rectangular loop of copper wire with dimensions b = 72.2 cm b=72.

One simple model for a person running the 100 m dash is to assume the sprinter runs with constant acceleration until reaching top speed, then maintains that speed through the finish line. If a sprinter reaches his top speed of

A green light is submerged 2.90 m beneath the surface of a liquid with an index of refraction 1.35. What is the radius of the circle from which light escapes from the liquid into the air above the surface?

What do scientists use a scientific law for?

What was the only option for getting the Apollo 13 astronauts back to Earth alive?

Four blocks of weights are required using which any body whose weight is between 1kg and 40 kg can be weighed. Find the four weights

Use the graph to determine the instantaneous speed at 2 seconds. m/s What is the average speed over the entire trip? m/s

Most volcanoes are located at A. transform boundaries. B. midocean ridges. C. convergent and divergent boundaries. D. hot spots.

What factors affect the speed of a wave?

What direction does air resistance act on an object that is falling straight down