1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
umka2103 [35]
3 years ago
15

You’re responsible for server room security. You’re concerned about physical theft of computers. Of the following, which would b

est be able to detect theft or attempted theft?
A) Motion-sensor activated cameras
B) Smart card access to the server rooms
C) Strong deadbolt locks for server rooms
D) Logging everyone who enters the server room
Physics
1 answer:
guajiro [1.7K]3 years ago
4 0

Answer:

A) Motion-sensor activated cameras

Explanation:

Motion sensor activated cameras are the ones which actuate a trigger when any sort of motion is detected by them. They can play alarming sound, send e-mails and zoom the frame of motion as a response to the detected motion.

Motion sensor cameras can be of two types:

1. Fixed view camera

2. Rotating view camera

Fixed view cameras are in fixed position and they always point in the same direction for the view while the rotating cameras are the ones which can change their direction of view.

For a small and high security space we can use the fixed type camera so that we do not miss any suspicious movements. For wide areas and distant vision we use rotating cameras.

You might be interested in
A girl throws a ball of mass 0.80 kg against a wall. The ball strikes the wall horizontally with a speed of 25 m/s, and it bounc
erma4kov [3.2K]

Answer:

F = 800N

the magnitude of the average force exerted on the wall by the ball is 800N

Explanation:

Applying the impulse-momentum equation;

Impulse = change in momentum

Ft = m∆v

F = (m∆v)/t

Where;

F = force

t = time

m = mass

∆v = v2 - v1 = change in velocity

Given;

m = 0.80 kg

t = 0.050 s

The ball strikes the wall horizontally with a speed of 25 m/s, and it bounces back with this same speed.

v2 = 25 m/s

v1 = -25 m/s

∆v = v2 - v1 = 25 - (-25) m/s = 25 +25 = 50 m/s

Substituting the values;

F = (m∆v)/t

F = (0.80×50)/0.05

F = 800N

the magnitude of the average force exerted on the wall by the ball is 800N

4 0
3 years ago
An ice block measuring 5cm by 5cm by 5cm has a desity of 5g/cm3. What is the mass of the ice block?
Svetradugi [14.3K]


Density = (mass) / (volume)

Volume of your block = (5cm x 5cm x 5cm) = 125 cm³

5 gm/cm³ = (mass) / (125 cm³)

Multiply each side by (125 cm³):  Mass = 625 gm

Note: 
I don't know what kind of frozen substance you're working with,
but maybe you ought to be careful handling it ... I know that's
not water ice you have there.  The density of water ice is not
5 gm/cm³.  In fact, it's a little less than 1 gm/cm³.  That's why
the ice floats in your soda.

4 0
3 years ago
Read 2 more answers
What do you call rocxs that form under intense heat and pressure
kirill [66]

Metamorphic

Metamorphic rocks are formed under the surface of the earth from the metamorphosis (change) that occurs due to intense heat and pressure (squeezing).

5 0
3 years ago
Under what conditions does q, the heat evolved or absorbed by the system in a physical or chemical process, equal the change in
Paladinen [302]

Answer: When w=-P\Delta V

Explanation:

According to first law of thermodynamics, energy can neither be created nor be destroyed. It can only be transformed from one form to another.

\Delta H=\Delta E+P\Delta V

\Delta E=q+w

\Delta H = change in enthalpy

P = pressure

\Delta V = change in volume

\Delta E=Change in internal energy

q = heat absorbed or released

w = work done on or by the system

\Delta H=q+w+P\Delta V

Thus for \Delta E=q+w , w=-P\Delta V

The heat evolved or absorbed by the system in a physical or chemical process, equal the change in enthalpy of the system when w=-P\Delta V

8 0
4 years ago
Every object that has mass attracts every other object with a gravitational force: It has been proven that the size of the
denpristay [2]

Answer:

this is a law because it is a constant fact of nature

Explanation:

7 0
3 years ago
Read 2 more answers
Other questions:
  • A 75 W lightbulb is being run on a 110 V outlet. Determine the resistance of the lightbulb. Provide a detailed description of th
    9·1 answer
  • Estimate the mass of the Great Pyramid of Giza, in tons. You make may use of the following information: the Great Pyramid is in
    10·1 answer
  • If you were to drop a rock from a tall building, assuming that it had not yet hit the ground, and neglecting air resistance. Wha
    12·1 answer
  • First to answer will be the brainliest
    5·1 answer
  • A space-walking astronaut has become detached from her spaceship. She's floating in space while holding a wrench. She is thinkin
    13·1 answer
  • It has affected how we communicate, made us think we have to live perfect lives, caused drama, and BULLYING idea.
    5·1 answer
  • A sample of a compound weighs 2.54 grams. how many ounces (oz.) is this equivalent to?
    5·1 answer
  • Science fiction movies that include explosion sound effects for battles in space are not scientifically correct. Why is this?
    15·1 answer
  • I NEED HELP THIS QUESTION IS SO HARDDD!!
    11·2 answers
  • 2) Um gás ideal sofre uma determinada transformação, conforme mostra o gráfico abaixo. Considere
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!