Answer:When prfessionals take data collections its important becasue it can cause error. Lets say they are sloppy with thier work and end up getting something that is not near what should be happening. This can have a major affect on the truth of what they are doing and an effect on thier end result in general.
Explanation:
Sodium weights 0.968 so the density is equal to 968
Answer:
3.97 m/s
Explanation:
Speed is defined as the distance covered per unit time. Therefore, s=d÷t=d/t
Where d is distance and t is time
Given distance of 5 km and time of 21 minutes the speed would be given by dividing 5 km by 21 min. However, speed is expressed as km/h or m/s or miles per hour etc. So we nees to get our speed in one of these standard units.
Going for m/s
Conversion
1 km has 1000m hence
5 km=5*1000=5000m
1 min has 60 seconds hence
21 min=21*60=1260 s
Speed=5000m÷1260s=3.9682539682538 m/s
Rounded off, s=3.97 m/s
Answer:
a) 0.0025 rad/s
b) 20.15 m/s2
c) 0 m/s2
Explanation:
Unit conversion:
3220 km = 3220000m
29000km/h = 29000 km/h * 1000m/km * 1/3600h/s = 8056 m/s
a) The angular speed:
b) The radical acceleration:
c) Assume constant velocity, the tangential acceleration of the spaceship would be 0.