<h2>Answer : </h2>
Newton's Third law of motion states :
" Every action has an equal and opposite reaction "
i.e If a force is applied by an object A on another object B then that object B also exerts a foce on object A, that is of same magnitude and opposite direction to the force applied by object A.
Ex - A book on a table exerts gravitational force on the table and table exerts back a normal force on the book.
Answer:
D. A battery provides electrical energy to power a phone.
Explanation:
Examples of current electricity are starting a car, turning on a light, cooking on an electric stove, watching TV, shaving with an electric razor, playing video games, using a phone, charging a cell phone and more.
Given:
The average temperature of the outer space near the earth is T_f=50.3 °F
To find:
Convert the given temperature to kelvin(K)
Explanation:
The temperature can be converted from degree Fahrenheit to kelvin using the formula,
![T_K=(T_f-32)\times\frac{5}{9}+273](https://tex.z-dn.net/?f=T_K%3D%28T_f-32%29%5Ctimes%5Cfrac%7B5%7D%7B9%7D%2B273)
On substituting the known values,
![\begin{gathered} T_K=(50.3-32)\times\frac{5}{9}+273 \\ =283.17\text{ K} \end{gathered}](https://tex.z-dn.net/?f=%5Cbegin%7Bgathered%7D%20T_K%3D%2850.3-32%29%5Ctimes%5Cfrac%7B5%7D%7B9%7D%2B273%20%5C%5C%20%3D283.17%5Ctext%7B%20K%7D%20%5Cend%7Bgathered%7D)
Final answer:
Thus 50.3 °F is equal to 283.17 K
Explanation:
u=0, v=?, a=5m/s², t=8sec
So, by the formula,
v=u+at
v=0+5×8
v=40m/s.
hope this helps you .