- 4. A pedestrian walks at a speed of v=4km/h , after how long will he walk the distance S=2 km 5. The body begins to move with an initial velocity of v0 =2m/s and a constant acceleration of a=3m/s2 . Find the speed after 4 seconds, find the path traveled during this time. 6. The car is moving at a speed of v0=25m/s and begins to slow down with acceleration a=-5m/s2 . Find the time after which the car will stop and the path that the car will take to stop
- What determines the format of the experimental value being studied - what does its accuracy depend on? an experimental result is always rounded freely, at the will of the exper imenter It depends on all numerical data in the formula used for the calculation It depends on the format of all direct measurements involved in calculating the desired value It depends on the accuracy of all
- In the course of the experiment, the properties of the material of a some body were investigated , as a result of which the average density and its absolute error were obtained bar (rho )=0.663g/cm^3 Delta bar (rho )=0.01454ldots g/cm^3 Plea se select the correct record of the final result of this experiment. rho =(0.66300pm 0.01454)g/cm^3 rho =(1.0pm 0.1)g/cm^3
- Peulure: [ Q=(mathrm(cm)(t_(2)-t_(1))=380 (mathrm(Nt))/(mathrm(hrc)) cdot 2 mathrm(kT) *(750^circ mathrm(C)-150^circ mathrm(C)). ]
- In the course of the experiment , the properties of the material of a some body we as a result of which the average density and its absolute error were obtained bar (rho )=0.663g/cm^3 Delta bar (rho )=0.01454ldots g/cm^3 Pleas e select the correct record of the final result of this experiment. rho =(0.66300pm 0.01454)g/cm^3 rho =(1.0pm 0.1)g/cm^3 rho =(0.663pm 0.015)g/cm^3
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