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
marshall27 [118]
3 years ago
15

Do all simple machines have a fulcrum

Physics
2 answers:
Mekhanik [1.2K]3 years ago
8 0
I don't think all simple machines have Fulcrums.
den301095 [7]3 years ago
5 0
I believe they would
You might be interested in
What is not a factor affecting impact in a collision; vehicle weight, speed, kinetic energy, centrifugal force
navik [9.2K]
I believe the answer is vehicle weight
6 0
3 years ago
To test the performance of its tires, a car
velikii [3]

<u>Answer</u>:

The coefficient of  static friction between the tires and the road is 1.987

<u>Explanation</u>:

<u>Given</u>:

Radius of the track, r =  516 m

Tangential Acceleration a_r=  3.89 m/s^2

Speed,v =  32.8 m/s

<u>To Find:</u>

The coefficient of  static friction between the tires and the road = ?

<u>Solution</u>:

The radial Acceleration is given by,

a_{R = \frac{v^2}{r}

a_{R = \frac{(32.8)^2}{516}

a_{R = \frac{(1075.84)}{516}

a_{R = 2.085 m/s^2

Now the total acceleration is

\text{ total acceleration} = \sqrt{\text{(tangential acceleration)}^2 +{\text{(Radial acceleration)}^2

=>= \sqrt{ (a_r)^2+(a_R)^2}

=>\sqrt{ (3.89 )^2+( 2.085)^2}

=>\sqrt{ (15.1321)+(4.347)^2}

=>19.4791 m/s^2

The frictional force on the car will be f = ma------------(1)

And the force due to gravity is W = mg--------------------(2)

Now the coefficient of  static friction is

\mu =\frac{f}{W}

From (1) and (2)

\mu =\frac{ma}{mg}

\mu =\frac{a}{g}

Substituting the values, we get

\mu =\frac{19.4791}{9.8}

\mu =1.987

8 0
3 years ago
Vascular plants can be divided into three categories. These categories are
Evgesh-ka [11]
I believe the answer here is <span>C).seedless, seed (nonflowering), and seed (flowering).</span><span>
</span>
6 0
4 years ago
Which of the following has the most thermal energy?
Lelechka [254]
Answer:
2. A 1 litre mug of hot chocolate at 75 degrees.

Explanation:
Thermal energy is directly proportional to mass, so as the mass increases, the thermal energy of the substance increases as well.
8 0
4 years ago
What is the net work on the block?
Strike441 [17]

Answer:

A block device is a computer data storage device that supports reading and (optionally) writing data in fixed-size blocks, sectors, or clusters. These blocks are generally 512 bytes or a multiple thereof in size

8 0
3 years ago
Other questions:
  • How much energy is radiated by sun per second ??
    10·2 answers
  • Why does the percentage of water vapor vary?
    10·1 answer
  • Some birds migrate 20,000 miles. If 1 mile equals 1.6 kilometers, calate the distance these birds fly in kilometers.
    6·1 answer
  • The difference in electric potential between a thunder cloud and the ground is 1.53 108 V. Electrons move from the ground which
    15·1 answer
  • The human circulation system has approximately 1×109 capillary vessels. Each vessel has a diameter of about 8 µm. Assuming cardi
    15·1 answer
  • 10 points
    10·1 answer
  • Time time it takes two successive crests of an ocean wave to pass a given point is called
    5·1 answer
  • A plane is traveling at 80 m/s. To prepare for landing, itslows down at a rate of 0.25 ms squared for 120 seconds. Calculate the
    10·1 answer
  • If an object travels 245 km in 5 hours, what was the speed of the object?
    15·1 answer
  • Given f(x)=3x-11 which of the following is f(7)<br><br> A. 10<br> B. 32<br> C. -6<br> D. 6
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!