Themes, topics - practice problems

Number of problems found: 2198

The pilot
The pilot is on a mission with 160 liters of fuel. The distance between the main base and operation area is 2 hours. The distance between the main base and backup base is 1 hour. Assume: - Aircraft fuel consumption is 10 lt/h. - Minimum fuel after landing
A fuel
A fuel tank has 28 gallons of fuel. One gallon of fuel weighs 7 1/10 pounds. How many pounds of fuel is in a full tank?
Electric charge
The electric current in a microprocessor circuit is 0.230 μA. How many coulombs pass a given point in the circuit in 1.50 ms?
Measured 74724
How long would a tourist walk the route if he measured 24.9 cm on a map with a scale of 1:25000? The marching speed is 4 km/h.
Transform 4
Transform to a positive angle in standard position: 24° west of north
What power 2
What power has a pump output to move 4853 hl of water to a height of 31 m for 8 hours? Comparing the power generated by the pump vs. the power generated by the motor, which is more efficient? Which, the pump or the motor generates the more pollution if fo
Impulse, force and momentum
A 50 kg mass is sitting on a frictionless surface. An unknown constant force pushes the mass for 2 seconds until the mass reaches a velocity of 3 m/s. What is the value of the unknown force? b) through your solutions prove that Impulse and momentum will h
The change
The change in momentum of an unknown object was 56N.s. What was the force applied when it moved a distance of 2m in 10 seconds?
A bus 2
A bus travelled from Town A to Town B. The whole journey, a 240 km ride, started at 1:00 p.m. and ended at 5:00 p.m. Find the average speed of the bus.
Identical 73194
Three identical pumps fill 50,400 liters of diesel into the tank in 7 hours. How much more (less) diesel will they pump if we add two more pumps, and they will all work for 4 hours?
The truck
What is the mass of a 10 wheeler truck if it has reached a momentum of 567kg.m/s while it moves at 40m/s
Measurements 71584
The rectangular factory hall has dimensions of 30 cm and 16 cm on the plan on a scale of 1: 500. Calculate the actual measurements.
An airplane 2
An airplane left Changi International Airport at 9 p.m. and fly 5841 km to Dubai International Airport. If the airplane flies at an average speed of 649 km/h, what is the arrival time of the plane? A) 6 a.m. the same day B) 8 a.m. the same day C) 6 a.m. t
Branisko 70954
The Branisko tunnel has a length of 4975m. How long will it take for a car to pass through the tunnel if the speed limit is 80km / h?
A BICYCLIST
A BICYCLIST travelled for T=1.9hrs at a constant speed of R=32km/hr . Find distance traveled
Huddersfield 70164
Prague's direct distance to Huddersfield (United Kingdom) is 1680km. What is the map's scale, at which this distance is 84 cm?
Expressed 70094
The air distance between the cottages on the same shore of the lake, 2.7 km, is the distance expressed by a line length of 36 mm. Find the scale of the map.
Distance 70084
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?
Sidewalk 70074
The sidewalk is 500m long. How will it be marked on the plan on a scale of 1: 200?
The temperature 28
The temperature rose 14°C in 3 1/2 hour. At what rate, in degrees per hour, did the temperature rise?

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