# 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
• Arc Convert to arc measures (radians): 924 ° Result write as a multiple of π
• Bulb 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?
• Compass 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?
• Trigonometry 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?
• Water In the garden with an area of 8 ares rain 40hl of water. To what heights leveled water? What is the slope of a ladder 6.2 m long and 5.12 m in height.
• Acres Two hours 24 students harvested chestnuts on 36 acres. How many square meters harvested one student per hour?
• Wheel Diameter of motocycle wheel is 52 cm. How many times rotates wheel on roand long 2 km?
• Rain 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
• Saw Blade circular saw with a diameter 42 cm turns 825 times per minute. Expresses his cutting speed in meters per minute.
• Granules 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?
• Cooker A current of 2A passes through the immersion cooker at a voltage of 230V. What work do the electric field forces in 2 minutes?
• Clock What distance will pass end of 8 cm long hour hand for 15 minutes?
• Cylinder The 1.8m cylinder contains 2000 liters of water. What area (in dm2) of this container is the water?

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