Unit conversion - 9th grade (14y) - math problems
Number of problems found: 296
In a braking test, a vehicle that travels at 51 km/h stops in 5 s. What is the acceleration?
- Engineer Kažimír
The difference between politicians-demagogues and reasonable person with at least primary education beautifully illustrated by the TV show example. "Engineer" Kažimír says that during their tenure there was a large decline in the price of natural gas, pri
- The railway
The railway line has a gradient of 12 per mille. How many meters will it ascend to a horizontal distance of 4 km?
- Permille of alcohol
I have 2 per mille of alcohol in my blood. How many milliliters is it when I have 5 liters of blood?
Convert to arc measures (radians): 924 ° Result write as a multiple of π
A 60 W bulb consumes 0.12 kWh of electricity. How long did she stand light without a break?
- Water well
Drilled well has a depth of 20 meters and a 0.1 meters radius. How many liters of water can fit into the well?
What angle are between directions WSW (WestSouthWest) and SSE (SouthSouthEast) on the compass?
- Eight hours
Brigadier Franta ties a sheaf of hay in 20 minutes. Lujza in the same time only a quarter. How many sheaves will they tie together in 8 hours?
- Cube and water
How many liters of water can fit into a cube with an edge length of 0.11 m?
If you know that cos(γ) = sin (806°), what is the angle γ?
In the garden with an area of 8 ares rain 40hl of water. To what heights leveled water?
- Ladder slope
What is the slope of a ladder 6.2 m long and 5.12 m in height.
It rains at night. On 1 m2 of lake will drop 60 liters of water. How many cm will the lake level rise?
Two hours 24 students harvested chestnuts on 36 acres. How many square meters harvested one student per hour?
Diameter of motocycle wheel is 52 cm. How many times rotates wheel on roand long 2 km?
- Electronics: Resistors in parallel
From relation for calculating the resistance of parallel combination of resistors: ? Calculate the R, if R1 = 2Ω a R2 = 15Ω
Cylinder: calculate the height of a 3 liter cylindrical pot with a diameter of 10 cm.
Blade circular saw with a diameter 42 cm turns 825 times per minute. Expresses his cutting speed in meters per minute.
Katy had two dogs. The first one ate a pack of granules a week and the other two times longer. Katka bought them two bags of granules. How long does it last for both dogs?
Unit conversion - math problems. Examples for 9th grade.