Physical quantity - math word problems - page 216 of 347
Number of problems found: 6931
- Board triangle ratio
From a rectangular board with 2 m and 3 m dimensions, we cut isosceles and right-angled triangles at the corners with an overhang of 40 cm. Calculate the ratio of the rest of the board's areas to its total original area. - Distance from Sound
Sound travels at a speed of 330 meters per second. The observer heard the bang 14 seconds after the flash. At what distance did the flash occur from the observer? - Petra chair work
Petra pushed a chair from one room to another with a force of 60N. She did 300 J of work. How far did Petra push the chair? - Body current voltage
A current of 0.1 A can lethally affect a human body with a resistance of 3 kΩ. What voltage corresponds to this current? - Lake map distance
On a map with a scale of 1:100,000, two lakes are 20 cm apart. What is their distance on a map with a scale of 1:40,000? - Cooker plate resistance
The immersion cooker plate has data 220 V, 300 W. What is the resistance of the heating wire? - Alternating circuit
In an alternating circuit, the total voltage V is given by V=V1 +V2 If V=(12.2+6.8i) V and V1=(7.8-2.5i) V, find the voltage V2. - Wood board density
Calculate the density of wood, which is a board with a volume of 0.2 cubic meters weighing 100 kg. - A fuel
A fuel tank has 28 gallons of fuel. One gallon of fuel weighs 7 1/10 pounds. How many pounds of fuel are in a full tank? - Manganin
How long must a manganin wire with a diameter of 0.8 mm have a value of 10Ω? - Ideal gas law
Assuming compression is according to the law pV = constant. Calculate the initial volume of gas at a pressure of 2 bar, which will occupy a volume of 6 cubic meters when compressed to a pressure of 42 bar. - Transmission of electricity
The electric field performs work 1610 J in the transmission of electric charge of 7 Coulombs between the heating coil terminals. Calculate the voltage between the terminals. - The car
The car travels at a speed of 70 km/h. What distance will it travel in 2 hours? - Energy on impact
A stone weighing 200 g falls in a free fall for 3 s. Find its kinetic energy on impact. - Three pumps together
One pump fills the tank in 1.5 hours, the second in 2 hours, and the third in 3 hours 20 minutes. How many minutes will the tank fill with three pumps if they work simultaneously? - Track ascent meters
How many meters will the track ascend if it is 200 kilometers long and the ascent is 7 per mille? - Sides of a rectangle
The dimensions of a rectangle are in a 4:12 ratio. If the shorter side length is 12 cm, what is the length of the longer side in centimeters? - Altitude difference
What is a climb permillage of the hill that is 4 km long and has an altitude difference of 6 meters? - Screens
The area of a 25-inch TV screen is 300 inch² the area of a 40-inch TV screen is 768 inch². The area of the smaller screen is what percent of the area of the larger screen? - Masons
One mason casts 30.8 meters square in 8 hours. How long casts four masons 178 meters square?
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