What causes the disease bronchitis?

an axe used to split wood is driven into a piece of wood a distance of 3.0 cm. If mechanical advantage of the axe is 0.85. how far apart is the wood split?

The people in a location in Florida are evacuating their homes and moving to inland areas temporarily.

What careers study severe weather

Push is a force but is pull a force?

A trilobite fossil weighing 0.059 N has an area of 0.0007 m2 that is in contact with a table. How much pressure does it exert on the table? a) 2.89 x 10-8 Pa b) 4.13 x 10-5 Pa c) 1.19 x 10-2 Pa d) 84.3 Pa

A 4.00 kg stone is dropped from a height of 145 m. What is the stone's potential and kinetic energy respectively when it is 50.0 m from the ground? A - 1,960 J, 5,680 J B - 5,680 J, 1,960 J C - 3,720 J, 1,950 J D - 1,960 J, 3,720 J

1 Calculate the size of the quantum involved in the excitation of (a) an electronic motion of frequency 1.0 * 1015 Hz, (b) a molecular vibration of period 20 fs, and (c) a pendulum of period 0.50 s.

a missile is moving 1810 m/s at a 20.0 degree angle. it needs to hit a target 19,500 m away in a 32.0 degree direction in 9.20 s. what is the acceleration that the engine must produce

A cyclist averages 50 m/s. If the course is 80,000m long. How many seconds will it take to complete the course?

Which one of the following planets does not have rings surrounding it? A. Saturn B. Uranus C. Mars D. Jupiter