is when the bronchial tubes swell up. this is usually cause by some sort of allergy, but exercise and stress can also cause the attack.

a) influenza
b) pneumonia
c) asthma
d) parkinson's

Ryan is examining the energy of the particles in a bar of gold. what is ryan most likely studying?

Two manned satellites approaching one another at a relative speed of 0.550 m/s intend to dock. the first has a mass of 2.50 ✕ 103 kg, and the second a mass of 7.50 ✕ 103 kg. assume that the positive direction is directed from the second satellite towards the first satellite. (a) calculate the final velocity after docking, in the frame of reference in which the first satellite was originally at rest.(b) what is the loss of kinetic energy in this inelastic collision? (c) repeat both parts, in the frame of reference in which the second satellite was originally at rest. final velocity(d) loss of kinetic energy = ?

Which of the following is the largest disadvantage of about half of the electricity in the united states comes from burning