Physical quantity - math word problems - page 184 of 347
Number of problems found: 6933
- Age difference
Martina is four years older than her brother. How many years older than a brother will he be in 8 years? - Dinosaurs in enclosure
Triceratops was admitted to the enclosure 10 minutes earlier than Stegosaurus but 6 minutes later than Diplodukos. Diplodukos was the first to leave the enclosure 7 minutes before Stegosaurus and 10 minutes before Triceratops. How many minutes were the Tr - Roof aluminum boards
To cover the pyramidal roof of the house, Mr. Drobný bought aluminum boards at 210 CZK per 1m². How much CZK crowns did he pay for them if their consumption increased by 10% due to overlapping edges? - Car crash
A car crash occurred on the road with a maximum permitted speed of 60 km/h. From the length of the vehicle's braking distance, which was 40 m, the police investigated whether the driver did not exceed that speed. What is the conclusion of the police, assu - Clock face
A clock face is drawn on paper. Straight lines connect numbers 10 and 5, and 3 and 8. Calculate the size of their angles. - Speed of sound
The average speed of sound is 330 meters per second. Estimate how long it will take to hear the church bell 1 km away. Calculate the distance from what you would hear sound after 10 seconds. - Lead melt
Find the heat needed to melt an object made of lead weighing 250g and an initial temperature of 35°C. Lead melts at 327°C at normal pressure. Mass heat capacity of lead c = 129 J/kg • K and mass latent heat of lead lt (t is the subscript) = 22.6 kJ/kg. - Heat transfer
We placed a lead object weighing 0.4 kg and 250°C in 0.4 L water. What was the initial temperature of water t2 if the object's temperature and the water after reaching equilibrium was 35°C? We assume that the heat exchange occurred only between the lead o - Plane Chase Time
A Boeing plane took off from the airport and flew at a speed of 900 km/h. When it had flown 600 km, a fighter plane was sent after it from the same airport, which flew at a speed of 2100 km/h. Calculate how long it took him to catch up. - Zinc body heating
A zinc body has a volume of 20 dm³. What heat is needed to warm it from a temperature of 25 to 100 degrees Celsius? What is this body's heat capacity C (unit J/K)? - The mass
The mass of a table is 6.4 kg, and the mass of a chair is 800 g. How many times is the table heavier than the chair? - Three animals
Ramrao bought a cow, a buffalo, and an ox for a total of Rs 85,000. The ratio of the price of a cow, buffalo, and ox is 4:8:5. What is the price of an ox? - Wire cut
A wire of length 9 m was cut into equal lengths using 5 cuts. How long is each piece? - Brazil flag diamond
The flag of Brazil has a yellow diamond on a green field with a blue circle inside. If we had a flag with dimensions of 70 cm x 50 cm, the rhombus would have a side 35 cm long and a height of 30 cm. Indicate with fractions in basic form what part of the f - Highway distance speed
The car is allowed to drive on the highway at a maximum speed of 130 km/h. What distance can he travel in 1.5 hours? Which is the furthest city that a driver can reach in 1 hour if he follows traffic regulations and drives from Prague on the highway to Br - Car deceleration
The car is traveling at a speed of 54 km/hour. The driver starts braking with an acceleration (deceleration) of 3 m/s². Specify the time in which to stop. - Electricity consumption
Calculate how much we will pay for 1 hour of consumed electrical energy if the seller sets a price of 0.126 euros for 1 kWh (all appliances together for 1 hour of work). Table: Appliance ; Power (W) Washing machine ; 2300 W Bulb ; 40W Refrigerator; 200W T - Thunder and lightning
There was a glimpse of the sky, and we heard thunder in 4.5 seconds. The light spreads at 300,000 kilometers per second, so we can assume the flash instantly without delay. However, the sound's speed is much lower in the air, one-third of a kilometer per - Quadrilateral angle circle
The points ABC lie on the circle k(S, r) such that the angle at B is obtuse. How large must the angle at vertex B of quadrilateral SCBA be so that this angle is three times greater than the interior angle ASC of the same quadrilateral? - Clock hands
Calculate the internal angles of a triangle whose vertices lie on the clock's 2, 6, and 11 hours.
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