Answer:
answer should be 10 because the line goes from (0,0) then to (1,10) and so on
Answer:
The horizontal component is zero.
The vertical component is ![7\sin\theta](https://tex.z-dn.net/?f=7%5Csin%5Ctheta)
Explanation:
Given that,
The lizard climb 7m directly up on a tree.
We know that,
The horizontal component is
![x=\cos\theta](https://tex.z-dn.net/?f=x%3D%5Ccos%5Ctheta)
The vertical component is
![y=\sin\theta](https://tex.z-dn.net/?f=y%3D%5Csin%5Ctheta)
If the lizard climb 7m directly up on a tree then,
We need to find the components
Using given data
The horizontal component of lizard is
![x=0](https://tex.z-dn.net/?f=x%3D0)
The vertical component is
![y=7\sin\theta](https://tex.z-dn.net/?f=y%3D7%5Csin%5Ctheta)
Hence, The horizontal component is zero.
The vertical component is ![7\sin\theta](https://tex.z-dn.net/?f=7%5Csin%5Ctheta)
Explanation:
The sun's gravitational force is very strong. If it were not, a planet would move in a straight line out into space. The sun's gravity pulls the planet toward the sun, which changes the straight line of direction into a curve. This keeps the planet moving in an orbit around the sun
Answer: a) io=233.28 A ( initial current); b) τ=R*C= 22.31 ms; c) 81.7 ms
Explanation: In order to explain this problem we have to use, the formule for the variation of the current in a RC circuit:
I(t)=io*Exp(-t/τ)
and also we consider that io=V/R=(1.5/6.43*10^3)
=233.28 A
then the time constant for the RC circuit is τ=R*C=6.43*10^3*3.47*10^-6
=22.31 ms
Finally the time to reduce the current to 2.57% of its initial value is obtained from:
I(t)=io*Exp(-t/τ) for I(t)/io=0.0257=Exp(-t/τ) then
ln(0.0257)*τ =-t
t=-ln(0.0257)*τ=81.68 ms
Gravity lets all objects fall to the ground at the same speed, 9.8 m/s/s. If the force of gravity were stronger, such as 10 m/s/s, the rate of acceleration would be faster.