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
DIA [1.3K]
3 years ago
14

Which statement explains what causes the balloon to accelerate

Engineering
1 answer:
victus00 [196]3 years ago
5 0
The air leaving through the balloon's mouth pulls the balloon in the same direction as the exiting air, so the balloon experiences a net force. All air surrounding the balloon pushes the balloon forward.
You might be interested in
A closed, 5-m-tall tank is filled with water to a depth of 4 m. The top portion of the tank is filled with air which, as indicat
Brums [2.3K]

Answer:

The pressure that the water exerts on the bottom of the tank is 59.2 kPa

Explanation:

Given;

height of tank, h = 5m

height of water in the tank, h_w = 4m

pressure at the top of the tank, P_{top} = 20 kPa

The pressure exerted by water at the bottom of the tank is the sum of pressure on water surface and pressure due to water column.

P_{bottom} = \gamma h + P_{top}\\\\P_{bottom} = (9.8*10^3*4 \ \ + \ 20*10^3)Pa\\\\P_{bottom} = 59200 \ Pa\\\\P_{bottom} = 59.2 \ kPa

Therefore, the pressure that the water exerts on the bottom of the tank is 59.2 kPa

6 0
3 years ago
What advantage might there be to having the encoder located on the motor side of the gearhead instead of at the output shaft of
pickupchik [31]

The most accurate answer to that process is definitely precision. The Rotary encoder is an electro-mechanical device that converts the angular position or motion of a shaft or axle to analog or digital output signals. The efficiency of these devices is subject to the position and angle of the axis in front of the encoder.

Most cars use reduction systems in their gearboxes that convert a certain signal input into an output. Mechanically for example, a 20: 1 reduction box already infers that if there is a revolution in the input at the output there are 20. That same transferred to the encoder pulses would imply greater precision.

For example a decoder with 50 holes would have to read 1000 pulses (50 * 20) which is basically a degree of accuracy of 0.36 degrees. In this way it is possible to conclude that if the assembly of the encoder is carried out next to the motor and not at the output, it can be provided with greater precision at the time of reading.

7 0
4 years ago
T he area of a circle is pr 2. Define r as 5, then find the area of a circle,using MATLAB®.(b) The surface area of a sphere is 4
aksik [14]

Answer:

Area of Circle = 78.5398

Surface Area of Sphere =  1.2566 x 10^3 = 1256.6 ft

Volume of Sphere =  33.5103 ft

Explanation:

Please find below the written MatLab script used to solve the problem. I had to define r in each case to solve for the Area of the circle, the surface area and the volume of the Sphere.

r=5; % define r as 5

a=pi*r^2;% calculate the area of the circle

AreaOfCircle=a

r=10; % define r and 10 ft

sa=4*pi*r^2; %Calculate the surface area of the sphere

SphereSurfaceArea=sa

r=2;% define r as 2 ft

vs=(4/3)*pi*r^3;% Calculate the volume of the sphere

VolumeShere=vs

3 0
3 years ago
Read 2 more answers
Technician A states that air tools generally produce more noise than electric tools, so wear ear protection when using air tools
dusya [7]

Answer:

Both Technician A and Technician B are correct

Explanation:

Air tools and electric tools are both power tools as they are used to make work easier. Air tools generally use an air compressor that powers the motor of the tool making it possible to use it while electric tools as the name implies are powered by an electric source which in this case is batteries. An example of an air tool is the nail gun which can be used by furniture makers to drive nails and they are often louder than electric tools because of vibrations caused by the compressor making it necessary to use ear protection when using the tool for ear safety.

Technician B  is also correct because it is always advisable to use impact sockets while using impact guns due to the ability of the impact sockets to withstand the force caused by operating impact guns and make work neater when nuts and bolts are being loosened or tightened.

5 0
3 years ago
A source current of 10 mA is supplied to a parallel circuit consisting of the following resistors three resistors, a 2200 a 500
marysya [2.9K]
It’s is 2000 because it is 20000
7 0
3 years ago
Other questions:
  • Natural-draft furnaces are no longer available for new installations because they are _____.
    5·1 answer
  • An open 1- -m-diameter tank contains water at a depth of 0.7 m when at rest. As the tank is rotated about its vertical axis the
    5·2 answers
  • The hoist of a crane consists of a 10 kW electric motor running at 1440 rpm drivine 300 mm diameter drunn through a 60:1 gear re
    13·1 answer
  • Write a simple calculator program. Your program should ask for three things two whole numbers and an operator in the form of an
    10·1 answer
  • By saying that the electrostatic field is conservative, we do not mean that:_______ The potential difference between any two poi
    5·1 answer
  • Consider the following ways of handling deadlock: (1) banker’s algorithm, (2) detect
    9·1 answer
  • What are the main factors contributing to the generation of heat in resistance welding (ideally explain based on equation)
    9·1 answer
  • Which best lists the careers that are part of the Science and Math career pathway?
    9·1 answer
  • there are 17 toinspect in a commercial building. Each inspection takes 40 min. How many will the full inspection take
    9·1 answer
  • Which of the following is a correct version of a user story?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!