Physical quantities - math word problems - page 185 of 296
Number of problems found: 5917
- Wavelength
Calculate the wavelength of the tone frequency 4 kHz if the sound travels at speeds of 343 m/s. - Perpendicular parking
Which parking lot for 5 cars occupies a larger area, perpendicular or inclined at an angle of 45°, and how much? The car has dimensions of 4 m and 2 m. - Snails
How many liters of water will fit in an aquarium with bottom dimensions of 30 cm and 25 cm and a height of 60 cm if we pour water up to a height of 58 cm? How many snails can we keep in an aquarium if we know that snails need 600 cm³ of water for their li - Hydraulic patient lifting
A dentist lifted a patient in a chair by 10 cm using a hydraulic device. The mass of the patient with the chair is 100 kg. a) What force did the dentist have to apply to the small piston, if the ratio of the areas of the large and small pistons is S2/S1=2 - Hydrostatics
A) Calculate the hydrostatic pressure at the bottom of the Mariana Trench. The density of seawater is 1,030 kg/m³. What depth do you need to look up in an atlas or on the Internet? B) Calculate the pressure force acting on a submarine with a surface area - Range, mean, median
The ages of 7 employees in an office are given below 32, 42, 30, 32, 33, 23, 32 Find a) Range b) Mean c) Median - Water tube pressure
Water flows in a horizontal tube at a speed of 2.24 m/s and has a pressure of 0.1 MPa. How fast does the water flow in the narrowed part of the tube if its pressure is 0.09 MPa? - Rhino giraffe speed
The rhino raced the giraffe. The rhino covered a distance of 36 km in 45 minutes. How fast was it running? Which of them is faster if the giraffe runs at a speed of 40Km/h? - Anthea
Anthea is running an experiment to examine vaccine shelf life, and she must precisely monitor the temperature. The starting temperature is −116 degrees Celsius (°C). The temperature rises by 35 degrees, then falls by 12 a degree. What is the final tempera - Which 10
Which will have greater momentum between a ten-wheeler truck weighing 7,000 kg and a bus that weighs 5,000 kg if the bus is moving at 15 m/s while the truck is moving at 10 m/s? - Driver departure time
What time does the driver have to leave Liberec to be in Jihlava (240 km away) at 11 o'clock if he drives at an average speed of 80 km per hour? - Height estimation men
What is the smallest number of men we would have to choose to estimate the mean height of men with an accuracy of +, - 0.5 cm, and 95% confidence, assuming a standard deviation of 8 cm? - Elephant population
In 1979, 1.3 million elephants lived in Africa. By 1989, their number had dropped to 600,000. On average, how many elephants have died each year during this period? - Dimensions - building
The H-shaped building consists of 3 parts. Two identical components have the following dimensions: height 805 cm, width 525 cm, and length 15 m. The third cube-shaped part is 7 m wide. What is the total volume of the building in cubic meters? - Cylinder can
The paint is sold in a cylinder-shaped can with a height of 24.5 cm and a diameter of 15 cm. A full can weighs 5.5 kg, and an empty can weighs 200 grams. How much does 1 liter of paint weigh? - Pool water capacity
The pool has dimensions: a length of 50 m, a width of 15 m, and a depth of 2 m. It is filled with water to 1/4 of its depth. How many hectoliters of water are in the pool? How many hectoliters of water can fit in a filled pool? - Barrel water
The cylindrical barrel is 1.2 m high, and the diameter of its base is 0.6 m. How many hectoliters of water will fit in the barrel? What is the smallest amount of sheet metal needed for its production? (we count both bases) - Board paint calculation
Štěpán painted a block-shaped steel board measuring 2.2 m, 1.5 m, and 1.6 m twice with a protective coating. How many kilograms of paint would he consume if he used 120 g of paint per 1 m²? - Pool Water Height
A 1-meter-wide sidewalk will be paved around the block-shaped pool in the garden. The dimensions of the bottom of the pool are 8.5 meters and 6 meters. The height of the pool walls is 2 meters. There are 86.7 m³ of water in the pool. How high did the wate - Two rectangles 2
A square area of 36 cm² is cut out to make two rectangles - A and B. The area's ratio A to B is 2:1. Find the rectangles A and B dimensions.
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