Answer:
Estimate money spent on the appliance( 9 Watt bulb ) on a monthly basis is $0.7776
Explanation:
Given the data in the question;
we are to pick a small appliance in our home that we use regularly and look up on the internet how much power it operates at;
so lets consider a 9 Watt bulb
Power p = 9 Watt
Household Voltage = 120 v
we know that; Power = Current I × Voltage V
so,
9 = I × 120
I = 9 / 120
I = 0.075 A
Resistance;
R = V / I
R = 120 / 0.075
R = 1600 Ω
Now, Energy consumed in 1 month(30 days) will be;
E = P × Τ
E = ( 9 / 1000kW ) × ( 30 × 24hrs )
E = 0.009 × 720 hrs
E = 6.48 kWh
Now, the cost for one month will be;
Cost = 6.48 × $0.12
Cost = $0.7776
Therefore, estimate money spent on the appliance( 9 Watt bulb ) on a monthly basis is $0.7776
Answer:
the real answer is current
Explanation:
i took the test
Answer:
☆Cellular respiration is the process in which cells break down glucose, release the stored energy, and use it to make ATP. The process begins in the cytoplasm and is completed in a mitochondrion. Cellular respiration occurs in three stages: glycolysis, the Krebs cycle, and electron transport.
Explanation:
<h3>Hope it helps you. </h3>
Answer:
![(a)F_{max}=588N\\(b)acceleration=1.96m/s^2](https://tex.z-dn.net/?f=%28a%29F_%7Bmax%7D%3D588N%5C%5C%28b%29acceleration%3D1.96m%2Fs%5E2)
Explanation:
Given data
Mass m=120.0 kg
Coefficient of static friction ![u_{k}=0.500](https://tex.z-dn.net/?f=u_%7Bk%7D%3D0.500)
The coefficient of sliding friction ![u_{d}=0.300](https://tex.z-dn.net/?f=u_%7Bd%7D%3D0.300)
For Part (a) Maximum force
According to Newtons second law the net force aced on the body is given by
![F_{net}=ma=F_{max}-f_{stat}=0\\so\\F_{max}=f_{stat}](https://tex.z-dn.net/?f=F_%7Bnet%7D%3Dma%3DF_%7Bmax%7D-f_%7Bstat%7D%3D0%5C%5Cso%5C%5CF_%7Bmax%7D%3Df_%7Bstat%7D)
The friction force is given by
![f_{stat}=u_{stat}*N\\f_{stat}=0.5*(9.8*120)\\f_{stat}=588N](https://tex.z-dn.net/?f=f_%7Bstat%7D%3Du_%7Bstat%7D%2AN%5C%5Cf_%7Bstat%7D%3D0.5%2A%289.8%2A120%29%5C%5Cf_%7Bstat%7D%3D588N)
Conclude that
![F_{max}=f_{stat}=588N](https://tex.z-dn.net/?f=F_%7Bmax%7D%3Df_%7Bstat%7D%3D588N)
For Part (b) Acceleration
The acceleration due to dynamic friction is given by:
![ma=F_{max}-f_{dyn}](https://tex.z-dn.net/?f=ma%3DF_%7Bmax%7D-f_%7Bdyn%7D)
The dynamic friction is given by:
![f_{dyn}=u_{dyn}*N\\f_{dyn}=0.300*(9.8*120)\\f_{dyn}=353N](https://tex.z-dn.net/?f=f_%7Bdyn%7D%3Du_%7Bdyn%7D%2AN%5C%5Cf_%7Bdyn%7D%3D0.300%2A%289.8%2A120%29%5C%5Cf_%7Bdyn%7D%3D353N)
So the acceleration given by
![a=\frac{F_{max}-f_{dyn}}{m}\\ a=\frac{588N-353N}{120kg}\\ a=1.96m/s^2](https://tex.z-dn.net/?f=a%3D%5Cfrac%7BF_%7Bmax%7D-f_%7Bdyn%7D%7D%7Bm%7D%5C%5C%20a%3D%5Cfrac%7B588N-353N%7D%7B120kg%7D%5C%5C%20a%3D1.96m%2Fs%5E2)
Answer:
c
Explanation: kinetic energy being transferred from one object to another. Kinetic energy is the energy of mass in motion. The kinetic energy of an object is the energy it has because of its motion.