Questions in Grade High-school

Questions in Grade High-school

[Homework Help] An elevator weighing 6,000 N moves up a distance of 10.0 meters in 30.0 seconds. a. How much work did the elevator’s motor do? b. What was the power of the elevator’s motor in watts and in horsepower?

[Homework Help] A tree casts a shadow that is 20 ft long. The angle of elevation of the sun is 29°. How tall is the tree?

[Homework Help] A retailer buys a radio from the wholesaler for $75.00. He then marks up the price by 1/3 and sells it at a discount of 20%. What was his profit on the radio (to the nearest cent)?

[Homework Help] Explain why diesel engines don't use spark plugs.

[Homework Help] What is \(4 \frac{1}{6}\) minus \(2 \frac{5}{6}\)?

[Homework Help] Admission to the county fair is $5, and it costs an additional $0.50 for each ride ticket. What inequality represents this problem?

[Homework Help] How do you factor: \( b^2 - 6b + 8 \)?

[Homework Help] Where did Chinese civilization develop?

[Homework Help] What is it called when you don't eat meat except fish and seafood?

[Homework Help] What does "per capita" mean? (e.g., GDP per capita)