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
Leni [432]
2 years ago
6

A:10i - 2j -4k and B: i +7j - k. Determine |A-B| ​

Physics
1 answer:
maksim [4K]2 years ago
8 0

<em>A</em> - <em>B</em> = (10<em>i</em> - 2<em>j</em> - 4<em>k</em>) - (<em>i</em> + 7<em>j</em> - <em>k</em>)

<em>A</em> - <em>B</em> = 9<em>i</em> - 9<em>j</em> - 3<em>k</em>

|<em>A</em> - <em>B</em>| = √(9² + (-9)² + (-3)²) = √189 = 3√19

You might be interested in
Are the two atoms shown below in the image from the same element?
kvasek [131]

The answer is yes

They are isotopes.

7 0
3 years ago
A shovel is the third class lever​
Nookie1986 [14]

Answer:

Yes

Explanation:

In a third-class lever, the effort force lies between the resistance force and the fulcrum. Some kinds of garden tools are examples of third-class levers. When you use a shovel, for example, you hold one end steady to act as the fulcrum, and you use your other hand to pull up on a load of dirt.

8 0
3 years ago
Which chart correctly describes the properties of electric and magnetic fields?
Serjik [45]
<span>Both electric and magnetic fields exert body forces, meaning they act from a distance. The like charges and poles in both repel; positive charge repels positive and the north pole repels the north pole. For both, the opposite poles/charges attract. Finally, only magnetic fields have poles, and there are two poles, namely the south and north, so they are dipolar. The diagram that represents all of this information correctly is the third.</span>
7 0
3 years ago
. A child drops a ball from a window. The ball strikes the ground in 3.0 seconds. What is the. A child drops a ball from a windo
Vsevolod [243]

Answer:

30m/s

Explanation:

  • Use formula for height calculation: Time = √2h/√g
  • From here calculate height which comes out to be: 45m(if g is taken 10)
  • Then use formula for velocity calculation: v = √2gh

  • The velocity comes out to be 30m/s

3 0
3 years ago
What is the electric potential at a point between the 2.5-ω and 5.5-ω resistors, if the electric potential at the positive termi
algol13
If the +12V is on one side of the 2.5 ohm R then.............

V = (2.5/8) x 12     otherwise......

V = (5.5/8) x 12


5 0
3 years ago
Other questions:
  • Solid barium sulfate is placed into a beaker to form a saturated solution of barium sulfate. the solution has a barium concentra
    11·2 answers
  • NEEDD SOME HELP ASAP HELP MEHHH<br> 50 pOINTS
    7·2 answers
  • An adiabatic expansion refers to the fact that:
    12·1 answer
  • How does adding energy to matter by heating it affect the energy of its particles
    15·1 answer
  • Air resistance is a type of friction true or false
    15·2 answers
  • 7. Who provided evidence for the existence of an atomic nucleus?
    11·1 answer
  • Did the aluminum foil and the paper tent versoriums behave the way you predicted? What did you learn that could help you improve
    8·1 answer
  • What is the average speed of an object with a total distance traveled of 45 meters in 50 seconds
    6·1 answer
  • A cannon sitting on level ground is aimed at 45.0 degrees relative to the horizontal. It fires a test shot at a target located 1
    12·1 answer
  • As a passenger balloon rises, its gas bag tends to A. Become smaller B. Leak C. Distort D. Expand E. Remain unchanged
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!