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
Marizza181 [45]
3 years ago
8

A 3.0 X 10^3 grams rock swings in a circle with a diameter of 1000 cm. Given the constant speed around the circle is 17.90 mph (

a) what is the centripetal acceleration. *
Physics
1 answer:
marissa [1.9K]3 years ago
3 0

Answer:

a = 12.8 m/s^2

Explanation:

To find the centripetal acceleration you use the following formula:

a_c=\frac{v^2}{r}   (1)

v: tangential speed of the rock = 17.90mph

r: radius of the orbit = 1000cm/2 = 500cm = 0.5m

You first change the units of the tangential velocity in order to replace the values of v and r in the equation (1):

17.90mph*\frac{1609.34m}{1\ m}*\frac{1\ h}{3600\ s}=8m/s

Then, you use the equation (1):

a_c=\frac{(8m/s)^2}{5m}=12.8\frac{m}{s^2}

hence, the centripetal acceleration is 12.8 m/s^2

You might be interested in
I need help quickly: another name for car battery ?​
Alekssandra [29.7K]
Another name is voltaic battery
3 0
4 years ago
Read 2 more answers
In a lab,two pieces of cellphane tape are placed on a lab table. They are quickly ripped off the lab table. Which would you pred
galben [10]

Answer:

they would repel each other

Explanation:

they have gained the same charge

4 0
3 years ago
a 3,000kg truck runs into the rear of a 1000kg car that was stationary. The truck and car are locked together after the collisio
joja [24]
FVJDJFN.s<ldF KN,M c":F,BJ TNHIJRT IHJYODIFG 
7 0
3 years ago
Consider the following True/False statements:
Ainat [17]

Answer:

6) False

7) True

8) False

9) False

10) False

11) True

12) True

13) True

14) True

Explanation:

The spacing between two energy levels in an atom shows the energy difference between them. Clearly, B has a greater value of ∆E compared to A. This implies that the wavelength emitted by B is greater than A while B will emit fewer, more energetic photons.

When atoms jump from lower to higher energy levels, photons are absorbed. The kinetic energy of the incident photon determines the frequency, wavelength and colour of light emitted by the atom.

The energy level to which an atom is excited is determined by the kinetic energy of the incident electron. As the voltage increases, the kinetic energy of the electron increases, the further the atom is from the source of free electrons, the greater the required kinetic energy of free electron. When electrons are excited to higher energy levels, they must return to ground state.

4 0
3 years ago
Which of the following is not true of a form?
Ludmilka [50]

Answer:

It can only display one record at a time

Explanation:

Form ;

1. This is a document with spaces (also called  placeholders or fields ) in which a series of documents with similar content can be written or selected.

2.This is the most popular method of data entry

3.It may contain images in the background.

4.This can be sorted data regardless of its source of information.

Only option C is wrong.

Therefore the answer C is correct.

4 0
4 years ago
Other questions:
  • Is FeN compound ironic or covalent? how do you know?
    12·1 answer
  • Suppose a person whose mass is m is being held up against the wall with a constant tangential velocity v greater than the minimu
    11·1 answer
  • . Which of the following is not an ultimate goal of science?
    13·1 answer
  • What is frictional force?​
    13·2 answers
  • There is a balance of heat coming into and going out of earth. This is known as the?
    9·2 answers
  • Present at least one example that illustrates acceleration. Is this a scalar or vector quantity? Explain why. ...?
    7·2 answers
  • What is kelvin?(scientifically plz)
    10·1 answer
  • Object that is relatively close to mirror ray diagrams for convex mirrors
    15·1 answer
  • Which refers to the area on the thermometer marked with the letter A? scale bulb mercury strip number line
    14·2 answers
  • If a rock is thrown vertically upward from the surface of Mars with velocity of 20 m/s, its height (in meters) after t seconds i
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!