Physical quantity - math word problems - page 216 of 343

Number of problems found: 6854

Gravel - cone
The mound of gravel has a regular circular cone shape with a height of 3.3 meters and a base circumference of 18.85 meters. How many cubic meters of gravel are in a pile? Calculate the weight of gravel if its density is p = 640 kg/cubic m.
Titanium 83463
The body of titanium weighs 227 kg and has a volume of 0.05 m³. What is its density?
Seamstresses 83192
Three sewers sew 7 skirts in 15 hours. How many skirts can 2 seamstresses make in 50 hours?
Distance 80716
What distance did the crane hook travel in 1 min at a constant speed of 15 cm/s?
Resistance 80699
The immersion cooker plate has data 220 V, 300 W. What is the resistance of the heating wire?
Resistance 80698
The electric iron plate has written 220 V, 1200 W. What is the resistance of the heating wire?
Cyclist's 80365
The cyclist covered a distance of 143 km in 5.5 hours. What was the cyclist's average speed?
Transform 4
Transform to a positive angle in standard position: 24° west of north
Average 41841
What work do we do if we pull out a 58mm nail with an average force of 350N?
Calculate 16623
Calculate the density of 2.5 tons of wood, knowing it takes up three cubic meters. Express the result in g / dm cubic.
Exactly 6134
At what average speed does a car have to travel to drive 55 km in exactly half an hour?
Confidence 61774
What is the smallest number of men we would have to choose to estimate the mean height of men with an accuracy of +, - 0.5cm, and 95% confidence, assuming a standard deviation of 8cm?
Figure
Figure A is a scale image of Figure B, as shown. (Figure A is 6 inches, and Figure B is x inches, both squares) The scale that maps Figure A onto Figure B is 1:1 1/3. Enter the value f x
Screens
The area of a 25-inch TV screen is 300 inch² the area of a 40-inch TV screen is 768 inch². The area of the smaller screen is what percent of the area of the larger screen?
Rectangle area
The length of a rectangle is x units, and the width is y. Dimensions are increased by 10% and 15%, respectively. What is the ratio of the areas of the old and new rectangle?
Tree shadow 3
A 2-meter rod casts a shadow 3.2 m long. How high is a tree with a shadow of 14.4 m?
Minute angle
Find the size of the angle, which takes a minute hand for 30 minutes.
Forest nursery
In the Forest nursery plant, one borovice to 2 m². Calculate how many plants are planted in the area of 510 acres.
Plasticine ball
Plasticine balls have a radius r₁=77 cm, r₂=98 mm, r₃=9 cm, r₄=81 cm, r₅=5 cm, r₆=74 mm, r₇=49 mm, r₈=43 mm, r₉=26 mm, r₁₀=2 cm. They are molded
Dimensions 81909
The foundation pit for building houses has a face of blocks with dimensions of 10 meters, 10 meters, and 2 meters. After a heavy rain, the water is filled to the brim. The pump pumps out 10 m³ of water in 1 hour. In how many hours will the pit be empty?

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