Hunga Tonga volcano eruption forms new S Pacific island. A new island has been formed in the South Pacific after the eruption of an underwater volcano in Tonga. Images have emerged of the island's surface, 45km (28 miles) north-west of Tonga's capital, Nuku'alofa.
Answer:
constant acceleration of 9.81 m/s^2 against the weight of the person standing in spaceship.
Explanation:
- At earth surface we would feel a gravitational pull of g = 9.81 m/s^2 downwards.
- For anyone on spaceship to feel the same pull the spaceship needs to accelerate upwards at a constant acceleration of a = 9.81 m/s^2.
- The effect of "weightlessness" is removed such that the contact force between the person on the space-ship and the person him or herself is equal to the apparent weight of the person.
- If the spaceship accelerates constantly at 9.81 m/s^2, the apparent weight of the person would equal the actual weight on earth.
The lowland river system.
Answer:
The correct answer is Africa.
Explanation:
Africa is the second largest continent in the world after Asia. Africa is the continent which has the most independent countries in the world. There are 54 independent countries in Africa. There are still two states whose independence is disputed. These states are Western Sahara and Somaliland. In Africa, Nigeria is the largest country of the continent land wise. Some of the main countries of Africa are, South Africa, Kenya, Algeria, Ghana, Morocco, etc.
