Physical quantity - math word problems - page 29 of 318
A physical quantity is a term numerically describing a property or state of a physical object. For example, a physical quantity is a length, and its corresponding physical unit is a meter (symbol m). Similarly, the quantity is weight, and the unit is the kilogram (kg). Physical quantities can be divided into a scalar (has magnitude), vector (has magnitude and direction), and tensor (has magnitude and multiple directions).Number of problems found: 6358
- A 100-inch
A 100-inch stick is to be divided into four using the ratio 2: 5: 7: 11. How long is the longest piece? - A picture crop
Mr. Paul has a picture that measures 4 by 12 inches. It must be reduced so that the longest side measures 4 inches to fit in the school newspaper. Find the length of the shorter side of the picture once it has been reduced. - Open and short circuit tests
A 4 kVA 200/400 V single phase 50 Hz transformer has the following data on O. C. (open circuit) & S. C. (short circuit) test: O. C. Test: 200 V 0.8 A 70 W (Low Voltage side) S. C. Test: 20 V 10 A 80 W (High Voltage side) Find Full Load efficiency and regu - Noel drives
Noel drives at an average speed of 52 miles per hour (mi/h) for 3 1/4 hours. How far has he traveled for 3 1/4 hours?
- A biker
A biker traveled from city A to city B via city C with a uniform speed of 52 km/h. He then returned directly to city A with a uniform speed of 89 km/h. Find, in minutes, the total time of his whole journey to two decimal places. City distance A from B is - Janet
Janet walks 7/10 miles in 1/4 hour. Ian walks 9/10 miles in 1/3 hour; who walks at the faster rate and why? - A rectangular 9
A rectangular tank measuring 50 cm by 54 cm by 40 cm is 3/5 filled with water. 21.6L of the water is removed. What is the volume of water left in the tank? Give your answer in liters. - An electrician 6
An electrician can wire 4 1/2 rooms in 3 hours. How long does it take him to wire each room? - An electricity
If the Rodriguez family used 520 kilowatt-hours of electricity in 12 days, how many kilowatt-hours should they use in 6 days at the same usage rate?
- Bank deposits
At the end of each quarter, Patti deposits $1,400 into an account that pays 10% interest compounded quarterly. How much will Patti have in the account in three years? Note: Use tables, Excel, or a financial calculator round your final answer to the neares - Heat energy
Energy is measured using the unit Joule (J). Temperature is measured using the unit degree Celsius °C). To increase the temperature of 1 liter of water by 1°C, 4200 J of heat energy is required. (a) Kelly wants to increase the temperature of 2 liters of w - A meteorologist
A meteorologist calculated that the average temperature over the last four years dropped a total of 20 degrees. What integer represents the average change in the temperature per year? - A car 9
A car travels at 34 km/hr. How far does it take to travel in 2 hours? - The playhouse
The drawings of the playhouse are made on a scale of 1:50. In the drawing, the length of the cottage is 4.5 cm. How long is the playhouse actually?
- Tom can
Tom can run 3/4 of a mile in 1/8 of an hour. What is the unit rate in miles per hour? - A race
A race car driver won a 500-mile race with a speed of 116.3 miles per hour. Find the driver's time. - Ronaldo
Ronaldo drove 75 3/5 km in 4 1/2 hours. What was the average speed? - A lorry
A lorry covered 108km in 1hr 30min. What is the speed in km/h? - One evening 2
One evening, the temperature in Miami was 28°C. During that same evening in Anchorage, it was 32°C cooler than it was in Miami. What was the temperature in Anchorage?
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