Which metalloid is often found in microchips, semiconductors, and sand?

a.

boron

b.

arsenic

c.

germanium

d.

silicon

The magnitudes of the vectors in this diagram are vx/y = 17.94 meters/second and vy/z = 3.46 meters/second. Find vx/z.

How can you calculate kinetic energy?

How much force is needed to cause a 15 kilogram bike to accelerate at a rate of 10 meters per second?

A 67.0 kg crate is being raised by means of a rope. Its upward acceleration is 3.50 m/s2. What is the force exerted by the rope on the crate? A 67.0 kg crate is being raised by means of a rope. Its upward acceleration is 3.50 m/s2.

Chlorophylls absorb most light in which colors of the visible range?

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?