Answer:
An attacker can attach a script to a program that you download which then infects your computer.
Answer:
60 J
Explanation:
Given,
Work done to push the box = 100 J
Energy dissipated by friction = 40 J.
According to work energy theorem work done is equal to change in kinetic energy.
Change in Kinetic energy = Work done by student + Work done by friction
Change in Kinetic energy = 100 J - 40 J
Work done by the friction will be negative because it will act in opposite direction of force applied.
Change in Kinetic energy = 60 J
Answer: Single precision
Explanation:
A 1-bit sign, 8-bit exponent, 23-bit fraction and a bias of 127 is used for the single precision binary floating point representation. As, single precision is the smallest change that can be represented as floating point representation is called as precision. It is the computer format number, which occupies 32 bits in the computer memory.
The IEEE standard specify a binary 32 as:
Sign bit- 1 bit
Exponent width- 8 bits
Significant and precision- 24 bits (23 stored as explicitly)
