Explanation:
They're both incorrect.
The standard car battery has 6 cells with 2.1 volts a piece.
Scrooge must pay to make his system more effective and reliable for certain of the features listed. Let each of the features be taken into account.
A safety facility:
- This is a crucial factor.
- I strongly suggest that Mr. Scrooge pay and get a safe package.
- This keeps the data private and also prevents data from being lost or curred.
Concurrency control:
- For this application, I need not recommend that the contest control function be added.
- Not many processes happen at the same time.
- This function is required if several operations are in the queue.
Crash recovery:
- You better have a recovery function for a crash.
- Crash can occur on many grounds, such as a network failure, device failure, power failure etc.
- Crash system backups the document and wants to keep it all as before.
A view mechanism:
- I believe there are plenty of free software for observing the dataset, no payment is needed.
- Free software provides ample features.
A query language:
- I recommend not to receive a paid query language.
- For easy processing of databases, there are free query languages like MySQL.
Learn more:
brainly.com/question/20006455
Answer:
t = 30.1 sec
Explanation:
If the ant is moving at a constant speed, the velocity vector will have the same magnitude at any point, and can be decomposed in two vectors, along directions perpendicular each other.
If we choose these directions coincident with the long edge of the paper, and the other perpendicular to it, the components of the velocity vector, along these axes, can be calculated as the projections of this vector along these axes.
We are only interested in the component of the velocity across the paper, that can be calculated as follows:
vₓ = v* sin θ, where v is the magnitude of the velocity, and θ the angle that forms v with the long edge.
We know that v= 1.3 cm/s, and θ = 61º, so we can find vₓ as follows:
vₓ = 1.3 cm/s * sin 61º = 1.3 cm/s * 0.875 = 1.14 cm/s
Applying the definition of average velocity, we can solve for t:
t =
= 
⇒ t = 30.1 sec
Answer:
Electric currents
Physical properties of metals
Influence of gravitational force on objects
Explanation:
The engineer who designed the digital scale must have a good working knowledge of the electric current, and its principle of flow through various materials, and also, factors that can affect its flow through a material (especially metals).
The physical properties of metal would have to be known by the engineer, in order to design the digital scale. The engineer must be able to predict some of the effect of the changes in the physical properties of a metal, and then use this to get some function that he wants from the digital scale, especially the effect of these physical changes on the electrical conducting ability of a metal.
The knowledge of the effect of gravitational force on objects is a must-know for the engineer. The process of scaling here on earth is very much dependent on the gravitational pull on objects downwards to the earth. This knowledge can be used to predict how much deflection this gravity forces will induce on an object towards the earth.
