Circle the letter of the sentence that tells how bohr' model of the atom differed from rutherford's model a. bohr's model focused on the nucleus b. bohr's model focused on the protons c. bohr's model focused on the neutrons d. bohr's model focused on the electrons

What will a positive and a negative charge do if they are separated from each other?

How does the entropy of steam compare to the entropy of ice?

One hazard of space travel is debris left by previous missions. there are several thousand masses large enough to detect by radar orbiting the earth, but there are far greater numbers of very small masses such as flakes of paint. calculate the force exerted by a 0.110 mg chip of paint that strikes a space shuttle window at a relative speed of 5.00 ✕ 103 m/s and sticks, given the collision lasts 6.00 ✕ 10-8 s. such a collision chipped the window of the ill-fated challenger in june 1983, causing $50,000 of damage.