A 140 g ball at the end of a string is revolving uniformly in a horizontal circle of radius 0.537 m. The ball makes 2.27 revolutions in a second. What is its centripetal acceleration?

A talented PHY210 student is tuning her car. She increase the engine speed from 660 rpm very (69.1 rad/s) to 4500 rpm (471 rad/s). If the flywheel has a moment of inertia of 0.

Express 50,000 m/s2 in scientific notation. 5.0 x 103m/s2 0.5 x 105m/s2 5.0 x 104m/s2

A wave is a disturbance that transmits energy from one location to another without transmitting matter with it. True or false?

The motion of a particle executing SHM is given by x=0.01 sin 100π (t+0.005) where x is in metre and t is second. the time period of motion in second is?

Reaction of sodium, lithium and potassium will be demonstrated by your instructor. why are students not allowed to handle these elements?

An apple falls from an apple tree growing on a 20o slope. the apple hits the ground with an impact velocity of 8 m/s straight downward. what is the component of the apple's impact velocity parallel to the surface of the slope?

A 140 g ball at the end of a string is revolving uniformly in a horizontal circle of radius 0.537 m. The ball makes 2.27 revolutions in a second. What is its centripetal acceleration?

A 32kg kid on a sled sliding over some rough snow is acted on by a frictional force which reduces its velocity form 8.5 m/s to 4.1 m/s in 3.0 seconds what is the magnitude of the frictional force?

Yellow light with a wavelength of 5.89 x 10-7m travels through quartz glass with a speed of 1.94 x 108 m/s. What is the frequency of the light? A) 3.29 Hz B) 3.04 x 10^-15 Hz C) 30.36 Hz D) 3.29 x 10^14 Hz

What type of OS is very fast and small, and is often embedded, or built into the circuitry of a device?