Puffy cumulus clouds, which are made of water droplets, occur at lower altitudes in the atmosphere. wispy cirrus clouds, which are made of ice crystals, occur only at higher altitudes. on a typical day and at altitudes less than 11 km, the temperature at an altitude y is given by t=t0−αy, where t0 = 22.0 ∘c and α=(6.00∘c)/(1000m).find the altitude y (measured from sea level) above which wispy cirrus clouds can start to occur. (ignore supercooling of water droplets.)express your answer numerically in kilometers, using three significant figures.

There is a theory that indicates that dinosaurs became extinct when about 65 million years ago, a large asteroid hit the earth surface. dust caused by this collision blocked the sunlight reaching the earth's surface and many forms of life became extinct due to the cold. fearing this threat, how large the radius of an asteroid should you be looking for if the dangerous asteroid size is approximately the same as the one that killed the dinosaurs? available data suggests that about 18% of that asteroid's mass ended up as a dust spread evenly over earth after eventually settling out of the upper atmosphere. about 0.0180 g/cm^2 of dust, which is chemically different than the earth's rock, covered the earth's surface. typical asteroids have a density of about 1.9 g/cm^3. now that we know the size of the asteroid, how much energy was released during impact, assuming all of it was just the kinetic energy of the asteroid right before the impact?

Aplane travels 1000 miles in 5 hours .what is the planes average speed?

Marcella is a four-year-old girl who is a victim of emotional child abuse. based on the child and family services improvement and innovation act of 2011, which action should the government take for marcella? a. the state should arrest marcella’s abuser. b. the state should find a home for marcella as soon as possible. c. the state should enforce stricter laws in the area where marcella resides. d. the state should provide medical assistance to marcella.