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
tatuchka [14]
3 years ago
7

a 70kg man ascend a flight of stairs of height 4meter in 7secs calculate the power expanded by the man​

Mathematics
1 answer:
Elodia [21]3 years ago
4 0

Answer:

p= mgh/t

= 70×10×4/7=400J/sec

You might be interested in
Write the decimal 0.015 as a fraction (line over the 15, the 15 is repeating)
hoa [83]

0.015  in fraction

=\frac{15}{1000}

Simplified is

=\frac{3}{200}

Answer:\frac{3}{200}

6 0
2 years ago
Choose the correct written expression for: 25 – (3 x 4).
just olya [345]

Answer:

the quotient of 3 and 4 subtracted from 25.

Step-by-step explanation:

3 0
2 years ago
6. Antonio is a freelance computer programmer. In his work, he often uses 2n, where n is the number of bits, to find the number
densk [106]
In general 2^n is the number of pieces of information n bits can store.

(a)  Antonio can use the formula 2^n-1 to indicate the maximum size of numbers an n-bit word can store.
(b) for a 16-bit system, the maximum number of keys Millie can collect is 2^(16)-1 = 65536-1=65535
(c) For a 14 byte program, there are 14*8=112 bits.
5 0
2 years ago
Solve each equation. Check your solution.<br><br> 7a+10=2a
Debora [2.8K]

Answer:

a = -2

Step-by-step explanation:

7a + 10 = 2a

subtract 7a from each side

7a-7a+10 = 2a-7a

10 = -5a

divide by -5

10/-5 = -5a/-5

-2 = a

check

7 (-2) +10 = 2(-2)

-14 + 10 = -4

-4 = -4

5 0
3 years ago
what is the correct upper and lower control limits for 8.42 pounds and the accectable range for plus or minus .65 pounds
sweet [91]

Answer:

9.07 and 7.77 respectively.

Step-by-step explanation:

To determine the upper control limit, add 0.65 lb to 8.42 lb, obtaining 9.07 lb.

To determine the lower one, subtract 0.65 lb from 8.42 lb, obtaining 7.77 lb.

7 0
3 years ago
Other questions:
  • If the discriminant of a quadratic equation is -4, how many solutions does the equation have?
    12·1 answer
  • Look at triangle ABC.
    5·2 answers
  • What is the answer to numbers 2,3,4,5 and 6
    10·2 answers
  • How do you do this question?
    5·1 answer
  • What unit would be best to use for measuring the weight of a stapler
    14·1 answer
  • Need Help ASAP. Thank You.
    9·1 answer
  • 80% of blank games is 32 games
    15·2 answers
  • I don't get how any of these answers could be it.
    13·1 answer
  • i riley need help with this riley bad !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!.
    11·1 answer
  • Gabe is mapping out important family events. He uses negative numbers to represent time before he was born and positive numbers
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!