Mass + work - practice problems
Number of problems found: 32
- Riley
Riley has 4 mixing bowls. Each bowl has 1 5/8 cups of flour. How many cups of flour does Riley have? Show your work. - Cement and sand
Rasmus mixes cement with sand for some repair work. He used 3 5/6 kg of cement and 1/2 kg more sand than cement. In all, he needs 10 kg of the mixture. Does he have enough mixture? If yes, then how much more does it have? If not, then how much more does h - Medical facility
Stacie is a resident at the medical facility where you work. You are asked to chart the amount of solid food that she consumes. For the noon meal today, she ate 1/2 of a 3-ounce serving of meatloaf, 3/4 of her 3-ounce serving of mashed potatoes, and 1/3 o - Plums 4
Last year, Peter's Market ordered 15 1/2 pounds of plums from a local orchard. This year, the market plans to order 1 1/4 times as many pounds of plums as were ordered last year. They want 2/5 of this order to be red plums. What is the total amount, in po - Families 83209
Coal for 15 families lasts 60 days. How many days will the coal last for 20 families? - Horizontal 83020
What work must be done to bring a body of mass of 2 kg lying on a smooth horizontal plane from rest to a speed of 2 m/s? - Horizontal 82197
A cyclist rides along a horizontal path at a constant speed, overcoming a total resistance force of 20 N. What work does he do on a 5 km track? - Body's 81509
What was the body's mass when it moved along a path of 70 dm and did 1.4 kJ of work? - Participated 80621
Three 9th-grade classes participated in the paper collection competition. The company bought 1 kilogram of paper for €0.12, and the school received €174 thanks to their hard work. Calculate how many kg of paper 9A collected if you know that she collected - Jana mixing
Jana mix is 1/4 gallon of orange juice and 1/2 gallon of pineapple juice to make punch. Each serving is 1/16 gallon. How many servings can go in? Make sure you work. - Increasing 69094
The aircraft weighs 61 tons. It climbed from a height of 1000 m to a height of 3000 m while increasing the speed from 170 m/s to 210 m/s. What work did the aircraft engines do? - Transfers 67414
At 80 cm above the road, a person transfers a stone weighing 2 kg parallel to it in a uniform motion along a path of 6 m in 10 s. With what power does it work? - Kittens
Sometimes Grace has kittens. Each kitten has 1/3 as much cat food as a full-grown cat. How many kittens can Grace feed with the 1.47 pounds? Solve on paper. Then check your work. One full-grown cat needs 0.25 pounds of food. - Imagine 2
Imagine that you are filling treat bags with jellybeans. You have 3 3/8 cups of jellybeans, and each treat bag will contain 1/4 cup of jellybeans. How many treat bags can you fill before you run out of jellybeans? Show your work (please). - Flatbed 47151
How many bricks do they have to lift on a 1.2 m high flatbed if I want to do the work 5.88kj and one brick weighs 5 kg? - Latent heat
How much heat is needed to take from 100 g of water at 20°C to cool to the ice at -18°C? Mass heat capacity c (ice) = 21kJ/kg/°C; c (water) = 4.19 KJ/kg/°C and the mass group heat of solidification of water is l = 334kJ/kg - Designated 44741
Cathedral height 110m, sphere weight 6000kg, dome diameter 43m, crane arm length 25m a) what was the diameter of this sphere? b) how much mechanical work had to be done to lift it to the designated place? - Identical 44271
Ten identical trucks will take 240 tons of concrete to build the dam in 3 working days. How many tons of concrete will seven trucks take to make the dam in 5 days? - Ethanol 39281
How much power can we get if we pour ethanol on a mini turbine from a height of 1.5 m Volume Ethanol 0.2m³. How much work does ethanol do? The casting time is 1.9 minutes. The density of ethanol is 789 kg/m². - Suitcase's 36531
What was the suitcase's weight if I lifted it to a height of 150cm and did the work 0.5kJ?
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