Unit conversion + fundamentals of Physics - practice problems - page 4 of 14
Number of problems found: 279
- Kangaroo 82979
A kangaroo can move at a speed of 65 km/h. How many minutes will it take to move at this speed to a place 6500 m away? - Lightning 69734
The sound travels at a speed of 1km in 3 seconds. If the thunder is heard 12 seconds after the lightning, what distance is the storm? - Temperature 63004
Brass weighing 2.5 kg absorbs the heat of 180 kJ. How does the temperature of the brass change? The specific heat capacity of brass is 0.36 kJ / C - Movement 43831
The crane motor has a constant power of 9 kW. How long does it take to lift a body weighing 12 tons to a height of 9 m with constant movement?
- Motorcycle 79944
A car travels 11,000 m in one minute. A motorcycle travels at a speed of 330 m in 11 seconds. Which of them will travel the greater distance in 1 hour of driving? - Cyclist 66904
The athlete ran on a 10 km route at a speed of 5 m/s, 10 minutes after him. A cyclist drove at a speed of 30 km/h. Who will be at the finish first (A or B)? - Separated 38223
What is the intensity of the electric field at a point that lies in the middle between two point charges Q1 = 5.10-5 C and Q2 = 7.10-5 C, which is separated by r = 20 cm? The charges are placed in a vacuum. - Minutes 35371
The fly flies at a speed of 8km/h. How many minutes will it fly from one place to another, which is 1600m away? - Self-oscillation period
The water in the vessel carried by the boy has a self-oscillation period of 0.8 s. What is the size of the boy's movement speed when the length of the boy's step is 60 cm? Give the result in m/s.
- Newtonmeters
The driver loosened the nut on the car wheel with a wrench that held 20 cm from the axis of the bolt. He acted on the key with a force of 320N. At what moment did he act on the bolt? - Traveling 82597
What constant braking force is required to stop a car weighing 1 ton in 10 seconds traveling at 50 km/h? - Increases 69454
The car weighs 1850 kg and increases its speed from 27 to 81 km/h. How much has its kinetic energy increased? - Approximately 30131
Please calculate according to Pascal's law. Calculate the hydrostatic pressure at a depth of 300m below sea level if the density of seawater is approximately 1025kg per m³. At what depth below the surface is the hydrostatic pressure 4.5 MPa? - Accelerating 4813
When accelerating from 0 to 100 km/h in 9.3 seconds, what distance will the car travel?
- Temperature 38971
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)? - Coefficient 81094
A car moves along a horizontal road at a speed of 15 m/s. After turning off the engine, the car traveled a distance of 225 m. What was the coefficient of friction for this motion? - Kilometers 80360
A subway train covers a distance of 1.4 km between two adjacent stations in 1 minute 40 seconds. What is her average speed? Give the result in kilometers per hour and meters per second. - Weighing 17273
A body weighing 2 kg with a 7.8 g / cm³ density is placed in water. Does the body sink? Will he swim (1 = Yes, 0 = No)? - Acceleration 7487
The runway of the aircraft on the mother ship is 49m long. Calculate the aircraft's acceleration so that its speed when leaving the ejection device reaches 252km/h.
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