Im confused about something... how many years would it take to reach the sun..

Which Coefficients balance the following equation? ____Pb(OH)2+_____HCI—> _____ H2O+______PbCl2

lorasvet [3.4K]

the answer is A it is so easy question

3 0

3 years ago

Which of these is an indication that a chemical reaction has occurred?

BabaBlast [244]

3.

If the reaction forms a new substance it's a chemical reaction.

8 0

4 years ago

Hello!

Mnenie [13.5K]

Answer:

$T_0=80695.17162...$

Explanation:

Given equation:

$\ln \left(\dfrac{T_0-100}{T_0}\right)=-0.00124$

To solve the given equation:

$\textsf{Apply log rules}: \quad e^{\ln (x)}=x$

$\implies \dfrac{T_0-100}{T_0}=e^{-0.00124}$

Multiply both sides by T₀:

$\implies T_0-100=T_0e^{-0.00124}$

Add 100 to both sides:

$\implies T_0=T_0e^{-0.00124}+100$

Subtract $T_0e^{-0.00124}$ from both sides:

$\implies T_0-T_0e^{-0.00124}=100$

Factor out the common term T₀:

$\implies T_0(1-e^{-0.00124})=100$

Divide both sides by $(1-e^{-0.00124})$

$\implies T_0=\dfrac{100}{1-e^{-0.00124}}$

Carry out the calculation:

$\implies T_0=\dfrac{100}{1-0.99876...}$

$\implies T_0=\dfrac{100}{0.001239231...}$

$\implies T_0=80695.17162...$

6 0

3 years ago

Please answer :( gravity question for science

andreev551 [17]

The two forces acting on your body are the weight and the normal force

Explanation:

As you sit on your chair in front of the computer, there are 2 forces acting on you:

The force of gravity, of magnitude $mg$ (where m is your mass and $g=9.8 m/s^2$ is the acceleration of gravity), acting downward
The normal reaction exerted by the chair on your body, N, acting upward, and balancing your weight

We can apply Newton's second law to this situation; the law states that the net force acting on an object is equal to the product between the mass of the object and its acceleration:

$\sum F = ma$