9th grade physics
If a transparent material has a refractive of 2.0; a) calculate the critical angle b) if the refractive index were less than 2,0, would the critical angle be greater or less than before? Im super confused at this :(
Math
henry is 5ft tall and casts a shadow that is 15ft long a tree next to henry casts a 324-ft long shadow. how tall is the tree?
Math
So how do you do that show me how
Math
One shuttle service charges $10 for pickup and $0.10 per mile. The other shuttle service has no pickup fee but charges $0.35 per mile. Find the number of miles for which the cost of the shuttle service is the same. Please help me and show your work thanks.
math
an electronics store receives a shipment of 40 graphing calculators including 3 that are defective. Four of the calculators are sleceted to be sent to a local high school. How many selections can be made using the original shipment
Chemistry
If water is synthesized how much hydrogen would be needed to make 10.0 grams?
math
Eric has 3 more rocks than Clay. Together they have 35 rocks. How many rocks does each boy have?
Organic Chemistry
How many moles of hypochlorous acid are needed to react with 0.257 mol of 9-fluorenol? Molecular weight of hypochlorous acid = 52.46 g/mol MW of 9-fluorenol = 182.22 g/mol
english
What are the nouns and verbs in the sentence The Lord is my strength and my salvation; in him I will trust.
Writing
What if ten years ago, you started working as a clerk for DMD Medical Supplies? Six months ago, Liz Jakowski,the human resources director, promoted you to office manage. You manage two employees: Jack Snyder and Ruth Disselkoen. My office provides secretarial support for the f...
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