Unit conversion - 9th grade (14y) - math problems
Number of problems found: 269
- 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
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?
- 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?
What angle are between directions WSW (WestSouthWest) and SSE (SouthSouthEast) on the compass?
- Water well
Drilled well has a depth 20 meters and 0.1 meters radius. How many liters of water can fit into the well?
- 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?
If you know that cos(γ) = sin (806°), what is the angle γ?
- Cube and water
How many liters of water can fit into a cube with an edge length of 0.11 m?
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.
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?
It rains at night. On 1 m2 of lake will drop 60 liters of water. How many cm will the lake level rise?
- Electronics: Resistors in parallel
From relation for calculating the resistance of parallel combination of resistors: ? Calculate the R, if R1 = 2Ω a R2 = 15Ω
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?
A current of 2A passes through the immersion cooker at a voltage of 230V. What work do the electric field forces in 2 minutes?
What distance will pass end of 8 cm long hour hand for 15 minutes?
The 1.8m cylinder contains 2000 liters of water. What area (in dm2) of this container is the water?