Answer:
internet of things.
Explanation:
The mention Smart refrigerator with information communication system to both manufacturer as well as the customer is an example of internet of things.
The interconnection via internet of computing devices embedded in everyday objects, enabling them to send and receive data. It is also the ability to transfer data without human to human or computer to human interaction.
<span>Angular speed = total degree / time
As = 360*(2.5) / 3.0 min (60)
As = 900 deg / 180 s
As =5 Degree / second</span>
Answer:
7. 2 kg
8. 0.5 kg
9. 4 kg
Explanation:
The equation is F=MA
where F is force in Newtons
M is mass in kg
A is acceleration in m/s^2
for each you substitute in the F and A, and you are finding M. Meaning you divide F by A.
M = F/A
6/3 = 2
6/12 = 0.5
20/5 = 4
It is force because work/distance= force
Answer:
Explanation:
Faraday’s constant can be used to convert the charge (Q) into moles of electrons (n). The charge is the current (I) multiplied by the time
Q = I × t = n × F
Where
Q is charge
I is current = 0.2A
t is time = ?
n is number of mole
F is Faraday constant = 96500C/s
Mass of Au = 0.4 g = 0.0004kg
Molar mass of Au = 197 g/mol
Malar mass = mass / mole
n = 0.4 / 197
n = 2.03× 10^-3 mol
n = 0.00203 mol
t = n × F / I
t = 0.00203 × 96500 / 0.2
t = 979.7 seconds
t = 16.32 minutes.
