4, because 3+1=4 and displacement is the amount of distance traveled. Hope this helps!
<u>Answer</u>
9.82 × 10⁸ ft/s
<u>Explanation </u>
A number written in scientific notation is in the form'
A × 10ⁿ
Where 1 ≤ A < 10 and
n ⇒ is an integer.
982,080,000 = 9.82 × 100,000,000
= 9.82 × 100,000,000
= 9.82 × 10⁸ ft/s
Answer:
A
Explanation:
circular motion means the object will follow a circular trajectory.
Answer:
1. The reason why nichrome wire is used in a heater is due to the properties of nichrome which makes it a material of choice for heating application including;
i) The cost of manufacture of nichrome is low
ii) Nichrome has both high mechanical and creep strength, and therefore is suitable for installation and use in a wide setting
iii) Nichrome has a high resistance to electron flow, making it a good electrical heating element
iv) Nichrome has a high resistance to oxidation, such that it can be reused several times as a heater
v) The high ductility of nichrome allows it to be stretched and drawn around different vessels with contents to which heat is to be supplied
2. Copper wire is not used in heaters because according to Joule's law, the heat produced from the flow of electric current, 'I', through a material having a resistance, 'R', for a time, 't', is proportional to I²·R·t, and copper has a very low resistance, 'R', to the flow of electric current, and therefore, will not produce sufficient heat required at a given current level
Explanation:
DescriptionThe Quartering Acts were two or more Acts of British Parliament requiring local governments of the American colonies to provide the British soldiers with housing and food. Each of the Quartering Acts was an amendment to the Mutiny Act and required annual renewal by Parliament.
Hope this helps