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What are the four italian interrogative pronouns?

The four italian interrogative pronouns are: Chi (who), it's invariable and refers only to people,singular or plural. Che cosa (what) still invariable and refers just to things or concepts. Quale (which), in...
NJ
Answered by Natalie J. • Italian tutor
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How can I measure the orbital period of a satellite around Earth?

In order to find the orbital period of a satellite around earth, you must understand the forces at play in this situation. You must equate the two radial forces acting on the satellite - these are Newton's l...
AE
Answered by Alexander E. • Physics tutor
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What is the difference between the perfect tense and the imperfect tense?

The perfect tense (in french le passé composé) is used to describe completed actions, whereas the imperfect tense (l'imparfait) refers to an event that used to happen, or an action that cannot be described a...
ID
Answered by Isobel D. • French tutor
2448 Views

Graphite and diamond are both made from carbon atoms. Why can graphite conduct electricity while diamond cannot?

The carbon atoms in diamond make four bonds The carbon atoms in graphite make three bonds Graphite has delocalised electrons which can move through the graphite to carry a charge Diamond does not have deloca...
VH
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The MMR vaccine is given to children in order to prevent the conditions measles, mumps and rubella. Describe how a vaccine works?

Vaccines contain dead or inactive forms of a pathogen. - These dead or inactive forms stimulate the white blood cells to produce antibodies against the pathogen. - If a person is infected by the pathogen in ...
VH
Answered by Victoria H. • Biology tutor
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