Physical quantities - math word problems - page 178 of 296

Number of problems found: 5915

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?
Map actual distance
On a tourist map with a scale of 1:50 000, the distance between Štrbské Pleso and Štrba is 14 cm. What is the actual distance?
Cyclist car journey
The cyclist travels 10 km per hour, car 60 km. The cyclist went for 3 hours. How many minutes does the same journey take to a car?
Plan road scale
A 3.5 cm-long line shows the 350 m-long road on the plan. What is the project's scale?
Step map distance
Peter takes a step of 0.5 m and walks a hundred steps. How long would this distance be on a 1:1000-scale map?
Manganin
How long must a manganin wire with a diameter of 0.8 mm have a value of 10 Ω?
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.
Earth travel distance
The Earth is moving at a speed of 29.8 km/s, and what track will the Earth travel in an hour?
Bricklayer work
A bricklayer will lay 12 m³ of brickwork in 4 days if he works 7 hours a day. How many days will he lay 51 m³ of masonry if he works 8.5 hours daily?
The car
The car travels at a speed of 70 km/h. What distance will it travel in 2 hours?
World travel time
The speed of the car is 23.45194840364737364738 km/h. How many hours will it take to travel around the world?
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?
Average Speed for Distance
At what average speed does a car have to travel to drive 55 km in exactly half an hour?
Triangle perimeter ratio
The lengths of the sides of the triangle are in the ratio 7:6:4. The shortest side is 36 cm. What is the perimeter in cm of this triangle?

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