Combining which of the following substances with germanium will cause the germanium to emit free electrons?

A. Bismuth

B. Gallium

C. Aluminum

D. Indium

A car traveled 1425 km from el paso tx to dallas tx in 12.5 hours. what was the cars average speed

A 170-lb man carries a 10-lb can of paint up a helical staircase that encircles a silo with radius 15 ft.

What is the force felt by the electrons and the nuclei in the rod when the external field described in the problem introduction is applied? (Ignore internal fields in the rod for the moment.

What is the force of attraction between two masses 5kg and 8kg at a distance of 60cm apart. (A) 4.5*10-9N (B) 5.6*10-9N (C) 7.4*10-9N (D) 8.0*10-9N (E) 10.5*10-9N

find the x-component of this vector 18.4,0.250. Remember, angles are measured from the + x axis. Find the x-component and y-component

Which statement about a signal transduction pathway is true? a. A signal transduction pathway provides a means for a signal molecule to pass through the cell membrane and initiate a chain of events inside the cell. b.

If a car is traveling on the highway at a constant velocity, the force that pushes the car forward must be A. greater than the force of friction exerted upon the car. B. less than the force of friction exerted upon the car. C.

Tom stops using a new skin cream for five days to determine if the cream is the cause of a recent rash. What stage of the scientific method is Tom using?

Use your observations to determine qualitatively how the strength of the electric interaction between charged objects depends on the distance between them. Explain your reasoning (this is trickier than it might seem at first).

Far from any other masses, two masses, m1 and m2, are interacting gravitationally. The value for the mass of m1 suddenly doubles. What happens to the value of the gravitational force that mass m2 exerts on mass m1?