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
asambeis [7]
3 years ago
9

4.80-kg bucket of water is accelerated upward by a cord of negligible mass whose breaking strength is 75.0 N. If the bucket star

ts from rest, what is the minimum time required to raise the bucket a vertical distance of 12.0 m without breaking the cord?

Physics
2 answers:
ioda3 years ago
8 0

Answer:

Time,t=2.03seconds

Explanation:

Fg= 4.80×9.80= 47.04N

Maximum accelerating force= 75-47.04=27.96N

F= ma

27.96= 4.80 ×a

27.96/4.80=a

5.825m/s^2 =a

d=1/2at^2

d=12.0m

12=1/2 × 5.825 ×t^2

12 =2.913×t^2

t^2= 12/2.913

t= sqrt(4.120)

t= 2.03seconds

Finger [1]3 years ago
5 0

Explanation:

Below is an attachment containing the solution to the question.

You might be interested in
A standard quantity of a physical property used as a factor to compare other occurring quantities of that property is called a(n
Brrunno [24]
The correct answer that would complete the given statement above would be option B. UNIT (of measurement). <span>A standard quantity of a physical property used as a factor to compare other occurring quantities of that property is called a unit of measurement. Hope this answers your question. </span>
3 0
3 years ago
The magnetic field on the Sun is created by______.
Ber [7]
The answer is actually c hope this helps
( - - )
/ [®] \
| |
8 0
3 years ago
The first step of the scientific method is to _______________.
chubhunter [2.5K]
The first step of the scientific method is to MAKE OBSERVATIONS
4 0
3 years ago
A 2 feet piece of wire is cut into two pieces and once a piece is bent into a square and the other is bent into an equilateral t
SpyIntel [72]

Answer:

Explanation:

Let x ft be used to make square and 2-x ft be used to make equilateral triangle.

each side of square = x/4

area of square = ( x /4 )²

Each side of triangle

= (2-x) /3

Area of triangle = 1/2 (2-x)²/9 sin 60

= √3 / 36 x (2-x)²

Total area

A = ( x /4 )² +√3 / 36 (2-x)²

For maximum area

dA/dx = 0

1/16( 2x ) -√3 / 36 x2(2-x) = 0

x / 8 - √3(2-x)/ 18 = 0

x / 8 - √3/9 + √3/18 x = 0

x ( 1/8 + √3/18 ) = √3/9

x(.125 +.096 ) = .192

x = .868 ft

3 0
2 years ago
A 50 kg person steps off a diving platform that is 10 meters above the water below (Olympic height). With what speed do they hit
Nookie1986 [14]

Answer:

14 m/s

Explanation:

The following data were obtained from the question:

Mass = 50 kg

Initial velocity (u) = 0 m/s

Height (h) = 10 m

Acceleration due to gravity (g) = 9.8 m/s²

Final velocity (v) =?

The velocity (v) with which the person hit the water can be obtained as shown below:

v² = u² + 2gh

v² = 0² + (2 × 9.8 × 10)

v² = 0 + 196

v² = 196

Take the square root of both side

v = √196

v = 14 m/s

Therefore, he will hit the water with a speed of 14 m/s

5 0
2 years ago
Other questions:
  • To what potential should you charge a 3.0 μf capacitor to store 1.0 j of energy?
    11·1 answer
  • Which are ways to build self esteem?
    10·1 answer
  • The earth's magnetic field is associated with the:
    5·2 answers
  • Which statement best summarizes the central idea of "Applications of Newton's Law
    10·2 answers
  • Select the statement that correctly lists the forces from strongest to weakest. (2 points)
    14·1 answer
  • The gasoline in a car does 40,000 J of work on a car and generates a constant force of 20 N. How far did the car go?
    7·1 answer
  • A string of density 0.01 kg/m is stretched with a tension of 5N and fixed at both ends. The length of the string is 0.1m. What i
    13·1 answer
  • A bus travels east for 3 km, then north for 4 km. What is its final displacement?
    11·1 answer
  • URGENTLY NEED HELP!!!!!!
    13·1 answer
  • A bat emitts a sonar sound wave (343 m/s) that bounces off a mosquito 8.42 m away
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!