Radioactive isotopes of an atom are:

a. more scarce

b. more stable

c. less stable

d. more abundant

Examples of rational motion

A car is traveling at 20meters/seconds and is brought to rest by applying brakes over a period of 4 seconds what is it's average acceleration over this time interval?

A jet fighter flying at 300 m/s (just below the speed of sound) makes a turn of radius 2.25 km. (a) what is its centripetal acceleration in gs?

Horatio used the flat end of a hammer to remove a nail from a piece of wood. This is an example of using a hammer as an A) Lever B) Lilly C) Inclined plane D) Wheel and axle

Are dinosaur footprints original remains?

A cell provides 6 V to an LDR. The current through this LDR is measured and is found to be 3 A. What is the resistance of the LDR?

A car travels along eastward with a constant velocity. the magnitude of the acceleration of the car is

What is the weight of a 65 kg astronaut on mars?

When lava cools, what type of Rock forms?

A uniformly charged conducting sphere of 1.1 m diameter has a surface charge density of 6.2 µC/m2. (a) Find the net charge on the sphere. (b) What is the total electric flux leaving the surface of the sphere?