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
Mamont248 [21]
3 years ago
9

A fly sits on a potter's wheel 0.30 m from its axle. The wheel's rotational speed decreases from 4.0 rad/s to 2.0 rad/s in 5.0 s

. Determine the wheel's average rotational acceleration. Express your answer in radians per second squared. Enter positive value if the rotational speed increases and negative value if the rotational speed decreases.

Physics
2 answers:
Sedbober [7]3 years ago
7 0

Answer: The wheel's average rotational acceleration is -0.4 radians per second squared (rad/s^2)

Explanation: Please see the attachments below

WARRIOR [948]3 years ago
3 0

Answer:

The average rotational acceleration is -0.4 rad/s²

Explanation:

Given:

w₁ = initial rotational speed = 4 rad/s

w₂ = final rotational speed = 2 rad/s

t = time = 5 s

The average rotational acceleration is:

w_{average} =\frac{w_{2}-w_{1}  }{t} =\frac{2-4}{5} =-0.4rad/s^{2}

You might be interested in
All matter has electrical and magnetic properties because the atoms that make up matter are held together by electromagnetic for
leva [86]

Answer:

Charge

Explanation:

Charge is a fundamental property of all matter. All matter has electrical and magnetic properties because the atoms that make up matter are held together by electromagnetic forces.

These charges are usually positive and negative charges. When these charges which make up an atom (positive and negative) are equal, the atom is said to be electrically neutral. When positive charge is greater than negative charge, the atom is said to positively charged. Also, if the number of negative charges are more in an atom, the atom is said to be negatively charged.

7 0
3 years ago
A car moves at a constant speed of 10 m/s. If the car doesn't accelerate during the next 40 s how far will it go?
tangare [24]

the answer is b. space = time * velocity

8 0
3 years ago
An object is thrown directly downward from the top of a very tall building. The speed of the object just as it is released is 17
Softa [21]

Answer:

distance cover is  = 102.53 m

Explanation:

Given data:

speed of object is 17.1 m/s

t_1 = 3.32 sec

t_2 = 5.08 sec

from equation of motion we know that

d_1 = vt_1 + \frac{1}{2} gt_1^2

where d_1 is distance covered in time t1

sod_1 = 17.1 \times 3.32 + \frac{1}{2} 9.8 \times 3.32^2=

d_1 = 110.78 m

d_2 = vt_2 + \frac{1}{2} gt_2^2

where d_2 is distance covered in time t2

d_2 = 17.1 \times 5.08 + \frac{1}{2}\times9.8 \times 5.08^2

d_2 = 213.31 m

distance cover is  = 213.31 - 110.78 = 102.53 m

3 0
3 years ago
Two common terms for a decrease in velocity are
Colt1911 [192]

deceleration or rėtardation i’m pretty sure (it won’t let me say the second word but it’s correct)

6 0
4 years ago
Read 2 more answers
Which tool would you use to measure the amount of rainfall? a. graduated cylinder b. stopwatch c. scale d. thermometer
Fittoniya [83]

A graduated cylinder measures the volume of a liquid.

A stopwatch measures the amount of time that elapses.

A scale measures the mass of objects.

A thermometer measures the temperature of any object.

Because we are measuring rain, a liquid, we would want to use a tool that would allow us to collect the rain for measuring. Therefore, the tool e would use to measure the amount of rainfall would be A. a graduated cylinder.

5 0
3 years ago
Read 2 more answers
Other questions:
  • The rectangular boat shown below has base dimensions 10.0 cm × 8.0 cm. Each cube has a mass of 40 g, and the liquid in the tank
    11·1 answer
  • Why does the speed of sound vary depending on the medium through which it travels. in general?
    14·1 answer
  • How is dark matter detected in the universe?
    15·1 answer
  • Blood pressure is usually measured by wrapping a closed air-filled jacket equipped with a pressure gage around the upper arm of
    15·1 answer
  • Under what condition(vector A + vector B)= (vector A) + (vector B) holds good?
    11·1 answer
  • What is intermolecular forces and how is it related to phases of matter
    6·1 answer
  • What is the basis for rutherford's planetary model?
    7·1 answer
  • ((Bruv pls hurry on test)) Radioisotopes often emit alpha particles, beta particles, or gamma rays. The distance they travel thr
    8·2 answers
  • a crane lifts a 75 kg mass at a height of 8m. calculate the gravitational potential energy gained by the mass (g= 10N)
    11·1 answer
  • What are the properties of glass in relation to microscopy?
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!