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
Natasha_Volkova [10]
2 years ago
10

A giraffe at the zoo is 5 meters tall. Name something else that is about 5 meters tall.

Mathematics
2 answers:
ziro4ka [17]2 years ago
8 0

Answer:

Step-by-step explanation:

WITCHER [35]2 years ago
5 0

Answer:

telephone pole

Step-by-step explanation:

You might be interested in
24677899655995468385477/2468427843686545744
Musya8 [376]
It is 283747489393939
5 0
3 years ago
A certain semiconductor device requires a tunneling probability of T = 10-5 for an electron tunneling through a rectangular barr
Goryan [66]

Answer:

Generally the barrier width is a = 1.9322 *10^{-9} \ m

Step-by-step explanation:

From the question we are told that

     The tunneling probability required is  T  = 1 * 10^{-5}

      The barrier height is  V_o  = 0.4 eV

       The electron energy is  E = 0.08eV

Generally the wave number is mathematically represented as

      k  =  \sqrt{ \frac{2 * m [V_o - E]}{\= h^2} }

Here m is the mass of the electron with the value  m  =  9.11 *10^{-31} \  kg

         h  is is know as h-bar and the value is  \= h = 1.054*10^{-34} \  J \cdot s

So

          k  =  \sqrt{ \frac{2 * 9.11 *10^{-31 } [0.4 - 0.04] * 1.6*10^{-19}}{[1.054*10^{-34}^2]} }

=>      k = 3.073582 *10^{9}  \ m^{-1}

Generally the tunneling probability is mathematically represented as

          T  = 16 * \frac{E}{V_o }  * [1 - \frac{E}{V_o} ] * e^{-2 * k * a}

So

        1.0 *10^{-5} = 16 * \frac{0.04}{0.4 }  * [1 - \frac{0.04}{0.4} ] * e^{-2 * 3.0736 *10^{9} * a}

=>    6.944*10^{-6}= e^{-2 * 3.0736 *10^{9} * a}

Taking natural log of both sides

          ln[6.944*10^{-6}] = -2 * 3.0736 *10^{9} * a}

=>        -11.8776  = -2 * 3.0736 *10^{9} * a}

=>        a = 1.9322 *10^{-9} \ m

       

4 0
2 years ago
The area of a rectangular wall of a barn is 42 ft. Its length is 8 feet longer. Than twice its width. Find the length and width
stiv31 [10]
It is 42ft and 16 width
6 0
3 years ago
Read 2 more answers
Absolute value inequalities with fractions
Harlamova29_29 [7]
|x - 2x/5| <= 10
|5x - 2x| <= 50
3x <= 50
  x <= 50/3

-|5x - 2x| <= 50
-3x <= 50
   x >= - 50/3

answer

-50/3 <=  x <= 50/3


3 0
2 years ago
Me. Dietz is a teacher whose salary is $22,570 for this school year, which has 185 days. In Mr. Dietz school district, substitut
harina [27]

Answer:

School District pays $42 less to substitute teacher than Mr. Dietz.

Step-by-step explanation:

Given:

Salary of Mr. Dietz per year = $22570

Number of days in a year = 185 days.

Amount paid for Substitute teacher per day = $80

We need to find the Amount less paid to substitute teacher then Mr Dietz when Mr. Dietz takes a day off.

Solution:

First we will find the Amount paid for per day of Mr. Dietz.

Amount paid for per day of Mr. Dietz can be calculated by dividing Salary of Mr. Dietz per year with Number of days in a year.

framing in equation form we get;

Amount paid for per day of Mr. Dietz = \frac{22570}{185} = \$122

Now we will find Amount less paid to substitute teacher then Mr Dietz.

Amount less paid to substitute teacher then Mr Dietz  can be calculated by subtracting the Amount paid for Substitute teacher per day from Amount paid for per day of Mr. Dietz.

framing in equation form we get;

Amount paid for Substitute teacher per day = $122 - $80 = $42

Hence School District pays $42 less to substitute teacher than Mr. Dietz.

6 0
3 years ago
Other questions:
  • Linda made $104 for 8 hours of work. At the same rate, how many hours would she have to work to make $143?​
    5·2 answers
  • NEEDED NOW
    9·2 answers
  • Solve write or draw to explain Saul and Luisa each scored 167 points on computer games How many points did they score together
    7·1 answer
  • 8. Let α, β, γ be the angles made by a vector u ∈ R 3 with positive x, y, z−axis respectively. Then, the numbers l = cos α, m =
    10·1 answer
  • Math slope intercept form​
    7·2 answers
  • ??????can someone help???
    9·1 answer
  • Can someone please answer this question<br> Giving brainleist!
    7·1 answer
  • The function g is a transformation of f. If g has a y-intercept at 4, which of the following functions could represent g?
    8·1 answer
  • Suppose you plan to visit Carlsbad Caverns. You want to take the three-mile walking tour.
    14·2 answers
  • I need help with #5
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!