Questions in Grade High-school

Questions in Grade High-school

[Open]A hair dryer uses 72,000 joules of energy in 60 seconds. What is the power of this hair dryer?

[Open]Calculate the acceleration of a boat that has been cruising at 15 m/s but speeds up to 45 m/s in 6 seconds. Don’t forget your units: m/s\(^2\).

[Open]A 72-tooth gear is connected to a 12-tooth gear. If the large gear makes one complete turn, how many turns does the small gear make?

[Open]Towns A and B are 400 miles apart. If a train leaves A heading toward B at 50 miles per hour, how long will it take before it meets another train traveling from B to A at a speed of 30 miles per hour?

[Open]How are different types of radiation arranged along the electromagnetic spectrum?

[Open]Calculate the density of a rectangular metal bar that is 7.00 cm long, 4.00 cm wide, and 1.00 cm thick, with a mass of 352 g.

[Open]A woman lifts her 100-newton child up one meter and carries her for a distance of 50 meters to the child's bedroom. How much work does the woman do?

[Open]What is the verb in the sentence "The price of soda is over a dollar"?

[Open]Round 0.01123 to the nearest hundredth.

[Open]Which of the expressions does not contain any like terms? A. \(2x^2 + 3x - 4x + 2\) B. \(xy + yz - 17\) C. \(x^2 + x^2 - 2x - x^2\) D. \(4 + 8 + y\)