Question

Actividad3: Fill in the blank with will, can, must, can’t, may or might. Completa las siguientes oraciones con will, can, must, can’t, may, might.
1. Suppose that Earth pulls down on an apple with a force of 0.80N. The apple _________ then pull
up on Earth with a force of 0.80N.
2. A particle of mass m, located outside Earth a distance r from Earth’s center, isreleased, it
_________fall towards the center of Earth.
3. An object located on Earth’s surface anywhere except at the two poles _________ rotate in a circle
about the rotation axis and thus _________ have a centripetal acceleration that points towards
the center of the circle.
4. For an object situated in an underground laboratory, force of attraction _________ be exerted
on it by the internal and external layers of the Earth.
5. A body raised to a height h above the Earth possesses a potential energy of mgh.
However, this formula _________ be used only when the height h is much smaller than the
Earth’s radius.
6. How _________ we ensure that a body thrown from the Earth will not return to the Earth?
7. In order for a body of mass m to break away from the Earth, it __________ over- come a
gravitational potential energy.
8. Whenever a gravitational field changes appreciably in size and/or direction across the dimensions
of a body, there _________ be a tidal effect.
9. Cardwell said:” High temperature superconductors – which are oxide in nature- contain
predominantly copper, so this _________ be a reasonable place to start”.
10. The system is not working now. There _________ be something wrong with the engine.

Answer 1

the study of living organisms, divided into many specialized fields that cover their morphology, physiology, anatomy, behaviour, origin, and distribution.

Answer 2

Answer:

Superconductivity is a set of physical properties observed in certain materials where electrical resistance vanishes and magnetic flux fields are expelled from the material. Any material exhibiting these properties is a superconductor.