Answer:
The resultant displacement is 140 cm
Explanation:
say first displacement d₁ is 60 cm
and second displacement d₂ is 80 cm
Resultant displacement = d₁ + d₂
= 60 + 80
= 140 cm
Answer:
Explanation:
1. when both sides of the reactants and the products are equal
like h+oh ⇒ h20
hydrogen has 2 atoms on both sides and oxygen has one on both sides
2. no they are put to balance the equation
3. nope they are treated equally as all the other states
4. no if u are talking about a formula unit like NaCl for example it is aqueous not each element taken on its own if u are talking about just elements then i said before all states are treated equally
5. yup
Answer:
0
Explanation:
m = Mass of person
g = Acceleration due to gravity = 9.81 m/s²
d = Vertical height from the ground
F = Force = Weight = mg
Net work done would be
![W_n=W_{up}+W_{down}\\\Rightarrow W_n=Fdcos180+Fdcos0\\\Rightarrow W_n=-mgd+mgd\\\Rightarrow W_n=0](https://tex.z-dn.net/?f=W_n%3DW_%7Bup%7D%2BW_%7Bdown%7D%5C%5C%5CRightarrow%20W_n%3DFdcos180%2BFdcos0%5C%5C%5CRightarrow%20W_n%3D-mgd%2Bmgd%5C%5C%5CRightarrow%20W_n%3D0)
Hence, the work done on the person by the gravitational force is 0