Ineed asap 1815 is know as the year without a summer. this catastrophic event is the largest of its kind in the last 10,000 years. it produced snowfalls throughout the summer months of june, july, and august in the new england states and europe. grain and corn crops failed; people starved. alpine glaciers advanced far down mountain slopes; sea ice moved far from the polar regions and disrupted shipping. the events of 1815 were caused by a) a mini ice age. b) a hole in the ozone layer. c) a massive volcanic eruption. d) the drop of sea levels around the world. i am stuck between b or d can someone you

Apulley with a mechanical advantage of 5 will require you to pull times the amount of rope. a. 1/5 b. 5 c. 10 d. 15

The position of a crate sliding down a ramp is given by x=(0.05t^3) m, y=(1.7t^2) m, z=(6−0.85t^5/2) m, where t is in seconds. (a) determine the magnitude of the crate's velocity when t = 2 s. (b) determine the magnitude of the crate's acceleration when t = 2 s.

Agroup of students is studying convection currents. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other in an area with warm air. after 10 minutes, the balloons are released from a height of 1 meter. which of the following do the students most likely observe? question 2 options: the balloons rise at the same rate. both balloons are the same size. the ballons both rise. the cold ballon is larger than the warm balloon. the cold balloon expands and rises. the warm balloon shrinks and sinks. the warm balloon expands and rises. the cold balloon shrinks and sinks.