Answer: about 50
Explanation: The average person can type 65-70 keys an hour so it would have to be 50
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Lillian is a very accomplished typist and she's been practicing so that she can apply for a job as an executive assistant. 50 words per minute is she probably aiming for.
What is the magnitude of the force?The magnitude of force at point A is 79.1033 lb. Since FA < FA_max; Ladder will not slip
Given that;
∑'MA = 0
⇒ NB [Lsin∅] - W[L/2.cos∅] = 0
NB = W / 2tan∅ -------let this be equation 1
∑Fx = 0
⇒ FA - NB = 0
FA = NB
Therefore, from equation 1
FA = NB = W / 2tan∅
we substitute in our values
FA = NB = 76 / 2tan(60°) = 21.9393 lb
Now ∑Fy = 0
NA - W = 0
NA = W = 76 lb
Net force at A will be
FA' = √( NA² + FA²)
= √( (W)² + (W / 2tan∅)²)
we substitute in our values
FA' = √( (76)² + (21.9393)²)
= √( 5776 + 481.3328)
= √ 6257.3328
FA' = 79.1033 lb
Therefore, the magnitude of force at point A is 79.1033 lb
Now maximum possible frictional force at A
FA_max = μ × NA
so, FA_max = 0.4 × 76
FA_max = 30.4 lb
So by comparing, we can easily see that the actual friction force required for keeping the the ladder stationary i.e (FA) is less than the maximum possible friction available at point A.
Therefore, Lillian is a very accomplished typist and she's been practicing so that she can apply for a job as an executive assistant. 50 words per minute is she probably aiming for.
Learn more about friction on:
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Question 5 (1 point)
Natasha has carpal tunnel syndrome and has some trouble typing without her wrists and hands becoming swollen and painful. What type of keyboard should she invest in?
Question 5 options:
gaming keyboard
virtual keyboard
ergonomic keyboard
wireless keyboard
Question 6 (1 point)
If William types his name on two typewriters and on one his name appears wider, what kind of spacing does that typewriter have?
Question 6 options:
proportional spacing
monospacing
QWERTY spacing
automatic spacing
Answer: Gaming keyboard
Explanation: They're more tactile, durable, and faster. At the same time, some gamers appreciate the smaller footprint, portability, and lower price points of the membrane keyboards. Still, others want the best of both in a hybrid.
She should invest in Gaming keyboard because they're more tactile, durable, and faster.
What are the advantage of gaming keyboards?At the same time, some gamers appreciate the smaller footprint, portability, and lower price points of the membrane keyboards. Still, others want the best of both in a hybrid.
A typewriter is a mechanical machine that types words on a piece of paper with ink. They were used in former times when printing was not invented. The typewriter is like the current keyboards, but it types of paper, not on computers.
Android keyboards are the keyboard that is used in computers. They have alphabetic keys which are pressed to type on an electronic device connected to them.
Therefore, She should invest in Gaming keyboard because they're more tactile, durable, and faster.
Learn more about Gaming keyboard on:
https://brainly.com/question/29834226
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formula to calculate the given numbers is equal to the sum of all the values divided by the total number of values
ASAP
Answer:
16times3
Explanation:
that should be it
Answer:
16X3
Explanation: