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
olasank [31]
3 years ago
7

Please help!!!!!!!!!!!!!!!!

Physics
1 answer:
Serjik [45]3 years ago
4 0

Answer:

jeez i dont get it hold up

Explanation:

where de numbers at

You might be interested in
A 70 ft rope hangs from a helicopter above this room. The rope has a mass per unit length of 2 lb/ft. In order to be rescued fro
Mrac [35]

Answer:

The work done to get you safely away from the test is  2.47 X 10⁴ J.

Explanation:

Given;

length of the rope, L = 70 ft

mass per unit length of the rope, μ = 2 lb/ft

your mass, W = 120 lbs

mass of the 70 ft rope  = 2 lb/ft x 70 ft

                                         = 140 lbs.

Total mass to be pulled to the helicopter, M = 120 lbs  + 140 lbs  

                                                                       = 260 lbs

The work done is calculated from work-energy theorem as follows;

W = Mgh

where;

g is acceleration due gravity = 32.17 ft/s²

h is height the total mass is raised = length of the rope = 70 ft

W = 260 Lb x 32.17 ft/s²  x 70 ft

W = 585494 lb.ft²/s²

1 lb.ft²/s² = 0.0421 J

W = 585494 lb.ft²/s²  = 2.47 X 10⁴ J.

Therefore, the work done to get you safely away from the test is  2.47 X 10⁴ J.

4 0
2 years ago
Jeff’s father is installing a do-it-yourself security system at his house. He needs to get a device from his workshop that conve
Lilit [14]
Answer: buzzer.

The working principle of a buzzer is the conversion of electrical energy to sound energy.

The switch just cuts or permits the flow of current, the motor convertes electrical or other kind of energy into mechanical energy, a bulb converts electrical energy into light and a battery converts chemical energy into electrical energy.
4 0
3 years ago
Read 2 more answers
On which of the temperature scales does water boil at the highest numerical value? A. Celsius B. Fahrenheit C. Kelvin D. Latent
velikii [3]
Answer is C. Kelvin, Kelvin is the temperature scales does water boil at the highest numerical value. Hope it helped you, and have a great day.

-Charlie
7 0
3 years ago
Read 2 more answers
a college student rests a backpack upon his shoulder. the pack is suspended motionless by one strap from one shoulder.
Minchanka [31]

The student's shoulder supports the weight of the bag.

<h3>What is the free body diagram?</h3>

Free-body diagrams are utilized to display the relative direction and strength of all forces that are being applied to an item in a certain scenario. A unique illustration of the geometric diagrams that were covered in a previous lesson is the free-body diagram. We will make use of these graphics throughout the entire study of physics.

A university student is carrying a backpack. One strap is hanging the rucksack immobile from one shoulder.

The weight of the backpack is balanced by the shoulder of the student.

The free-body diagram is attached below.

More about the free body diagram link is given below.

brainly.com/question/24087893

#SPJ4

4 0
1 year ago
se the model for projectile motion, assuming there is no air resistance and g = 32 feet per second per second. A baseball, hit 3
guajiro [1.7K]

Answer:

b

Explanation:

just took the test

8 0
3 years ago
Other questions:
  • One astronomer believes that the density of the universe remains constant. One physicist believes that the density of the univer
    11·1 answer
  • What is the average velocity of a car that travels 50 kilometers due west in 0.50 hour?
    15·1 answer
  • This is a compound made from a group of covalently bonded atoms.
    11·2 answers
  • A thin, 100 g disk with a diameter of 8.0 cm rotates about an axis through its center with 0.15 J of kinetic energy. What is the
    6·2 answers
  • Calculate the kinetic energy in joules of a 1200 kg automobile moving at 18 m/s .
    11·2 answers
  • A car travelling at 15 m/s comes to rest in a distance of 14 m when the brakes are applied.
    9·1 answer
  • A friend insists that electric current is the same as electrical energy. Work with a partner to develop a rebuttal
    10·1 answer
  • An asteroid orbits the Sun every 176 years. What is the asteroids average distance from the Sun? P ^ 2 = a ^ 3 where p = period
    7·1 answer
  • A ball is projected at an angle of 53º. If the initial velocity is 48 meters/second, what is the vertical component of the veloc
    6·1 answer
  • POTENTIAL I KINETIC ENERGY
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!