A projectile is thrown into the air at an angle of 50° and lands on a target that is at the same level the projectile started. It will also land on the target if it is thrown at an angle of
A) 40°.
B) 45°.
C) 55°.
D) 60°.
E) none of the above
A
Environmental & Atmospheric Sciences
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Often before sunrise on a clear, calm, cold morning, ice (frost) can be seen on the tops of parked cars, even when the air temperature is above freezing. This condition happens because the tops of the cars are cooling by
a. conduction.
b. convection.
c. latent heat.
d. radiation.
Environmental & Atmospheric Sciences
Describe the main goals of precision agriculture
What will be an ideal response?
Environmental & Atmospheric Sciences
Which type of air mass is most likely to be involved in thunderstorm formation?
A) mP B) mT C) A D) cP E) none of the above
Environmental & Atmospheric Sciences
Proposed causes of past ice ages include all of the following except
A. volcanic eruptions. B. changes in the earth's magnetic field. C. continental drift. D. changes in solar activity.
Environmental & Atmospheric Sciences