Step-by-step explanation:
That depends on the tension on the tape.
As defined, the tape, due to gravity would form a catenary, a curve, so the measurement would be less than 30 m. The tension on the tape would affect the degree to which the measurement would be less. A tension well within the limits of the steel used to make the tape would be would be well within the accuracy of the tape. Over 30 m, the tape is likely +/- 2 mm, the recorded value could be 30m, +1mm/-3mm. If you need more than that degree of accuracy, you don’t use a tape.
Answer:
Step-by-step explanation:
Pollution can be defined as the introduction of harmful substances (man-made or natural) into the environment.
There are four major types of pollution:
1. Land pollution
2. Water pollution
3. Air pollution
4. Noise pollution
Land pollution refers to the gradual disintegration of the earth surface.
Causes of land pollution
1. Deforestation: The continuous cutting down of trees in the forest.
2. Erosion: The gradual disintegration of soil caused by the action of water.
3. Harmful agricultural practices such as bush burning, introducing toxic substances such as pesticides into the soil
4. Increased industrial waste due to increase in the number of industries
5. Mining of natural resources from the earth surface
6. Construction of bridges, railways and roads
Independent var: The variable that is deliberately changed by the testor.
Dependent var: The outcome that is measured each time the independent var is changed.
Answer:
113°F is the highest temperature and -67° is the lowest temperature.
Step-by-step explanation:
(45°C × 9/5) + 32 = 113°F
(-55°C × 9/5) + 32 = -67°F
Answer:
23
Step-by-step explanation:
100/5=20
20+3=23