Physical quantity - math word problems - page 202 of 342
Number of problems found: 6824
- Calculate
A bicycle rotates with a frequency of f= 25 Hz. By braking, its rotation can be slowed down evenly and the bicycle stops after a time of t0= 30 s from the start of braking. Calculate the angular acceleration Ԑ and the number of revolutions the bicycle mak - Surroundings 81843
A copper cylinder weighing 15 kg transferred 114.9 kJ of heat to the surroundings during cooling. By how many degrees Celsius did it cool down? - Propagation 81568
A cannon fired at a distance of 2720 m from the observer. The sound of the shot was heard by the observer 8 seconds after the flash. Calculate the speed of sound propagation in the air if we assume that the observer saw the flash at the same time as the s - Coefficient 70214
An 80 kg cart moving at constant speed along a horizontal road is subjected to a pulling force of 120 N. Specify: a) the magnitude of the frictional force b) the value of the coefficient of shear friction. - Gravitational 54411
How much force do we lift a stone in the water that weighs 30 kg and has a density of 2500 kg/m³? Gravitational acceleration g = 10 m/s². - Consumption 44071
Calculate the electric motor's power if it works for 10 minutes, and the electricity meter measured the consumption of 500 Wh. - Distance 43431
On a map at a scale of 1:250,000, the line shows a distance of 15 km. How many cm does this line measure on the map?
- Motorcyclist 17921
The motorcyclist travels at a speed of 48 km/h. Will he drive at this speed in 400 minutes? Km - Movement 3196
At what time the body travels a distance of 105 km with a steady movement at a speed of 70 km/h? - Three-quarters 2705
If the bus runs 5 km in 8 minutes, how many kilometers will it drive in three-quarters of an hour at a constant speed? - Three-quarters 6192
The swimming pool in the Veselý yard is square-shaped with dimensions of 2.5m by 3.4m and is 1.7 meters deep. How many liters are in the pool if it is filled to three-quarters of its total volume? Please round the result to tenths. - Gas, lpg and diesel
Calculate how much it costs to drive 35000 km by car: a) a car with the consumption of 8l/100 km of LPG for 60 cents b) 7l/100 km of petrol for 1.33 euros c) 6 l/100 km of diesel for 1.2 euros. Calculate what is cheaper. - Garden
A rectangular garden 31 meters 40 centimeters long and 20m30cm wide is adjacent to the shorter side with another (fenced) garden, and on one longest side is a 1-meter wide gate. How many meters of the fence are needed to buy? (Estimate, calcula - Hemisphere - roof
The shape of the observatory dome is close to the hemisphere. Its outer diameter is 11 m. How many kilograms of paint and how many liters of thinner are used for its double coat if you know that 1 kg of paint diluted with 1 deciliter of thinner will paint - Travel 40801
The Earth is moving at a speed of 29.8 km/s, and what track will the Earth travel in an hour?
- Kilometers 30801
The tourist walked 3km in 45 minutes: how many kilometers will he travel in 2 hours and 30 minutes? - Exactly 6134
At what average speed does a car have to travel to drive 55 km in exactly half an hour? - Photo enlarge
Mark wants to enlarge a 4-inch by 6-inch photo to 15 inches in height. Use a ratio table to determine the new width of the photo. - Vertices of a right triangle
Show that the points D(2,1), E(4,0), and F(5,7) are vertices of a right triangle. - 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?
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