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
Volgvan
4 years ago
13

Name two things that are used to help machines be more efficient

Physics
1 answer:
Sloan [31]4 years ago
3 0

oil,and grease lubricants also work

You might be interested in
Which of the following has unbalanced force? Someone help pls
Levart [38]
I think its the car moving to a stop sign
4 0
3 years ago
What is an “equilibrium temperature”?
RSB [31]

Answer:

One may assume that the planet radiates energy like a blackbody at some temperature according to the Stefan–Boltzmann law. Thermal equilibrium exists when the power supplied by the star is equal to the power emitted by the planet. The temperature at which this balance occurs is the planetary equilibrium temperature.

Explanation:

6 0
3 years ago
A 6.9-kg wheel with geometric radius m has radius of gyration computed about its mass center given by m. A massless bar at angle
Vilka [71]

Complete Question

The complete question is shown on the first uploaded image

Answer:

The value is  \alpha =2.538 \  rad/s^2

Explanation:

From the question we are told that

  The mass of the wheel is  m =  6.9  kg

   The radius is  r =  0.69 \  m

    The radius of gyration is  k_G = 0.4\  m

    The angle is  \theta = 47^o

    The force which the massless bar is subjected to F = 22.5 \  N

Generally given that the wheels rolls without slipping on the flat stationary ground surface, it implies that  point A is the  center of rotation.

  Generally the moment of  inertia about A is mathematically represented as

     I_a =  I_G + M* r^2

Here I_G is the moment of inertia about G with respect to the radius of gyration  which is mathematically represented as

    I_G =  M *  k_G

=>I_a = k_G*  M + M* r^2

=>I_a =0.4 * 6.9  + 6.9 * 0.69^2

=>I_a =6.045 \  kg \cdot m^2

Generally the torque experienced by the wheel  is mathematically represented as

       \tau =  F *  cos (47)

=>     \tau =  22.5 *  cos (47)

=>     \tau =  15.34 \ kg \cdot m^2 \cdot s^{-2}

Generally this torque is also mathematically represented as

     \tau = I_a * \alpha

=>   15.34  =  6.045 * \alpha

=>   \alpha =2.538 \  rad/s^2

4 0
3 years ago
Please help asap its for anatomy
Brilliant_brown [7]

The smooth muscle in the wall of the bladder when stretched triggers the micturition reflex (urination).

<h3>What is a Bladder?</h3>

This is defined as a lined layers of muscle tissue that stretch to hold urine in organisms.

In older people the elasticity of the bladder is reduced which is why it makes it harder for them to hold urine for a long time.

Read more about Micturition here brainly.com/question/26493943

6 0
2 years ago
Contrast the atmosphere with the biosphere
4vir4ik [10]

The biosphere contains all the planet's living things. This sphere includes all of the microorganisms, plants, and animals of Earth. Within the biosphere, living things form ecological communities based on the physical surroundings of an area. These communities are referred to as biomes. Deserts, grasslands, and tropical rainforests are three of the many types of biomes that exist within the biosphere.

The atmosphere contains all the air in Earth's system. It extends from less than 1 m below the planet's surface to more than 10,000 km above the planet's surface. The upper portion of the atmosphere protects the organisms of the biosphere from the sun's ultraviolet radiation. It also absorbs and emits heat. When air temperature in the lower portion of this sphere changes, weather occurs. As air in the lower atmosphere is heated or cooled, it moves around the planet. The result can be as simple as a breeze or as complex as a tornado.
4 0
4 years ago
Other questions:
  • How could you compare the energy carried in two different longitudinal waves
    12·2 answers
  • Physical science!!!!!!helpppp
    9·1 answer
  • Which of the following is the best example of proper hypothesis?
    5·2 answers
  • A 10N force and a 50N force act in opposite directions on a 4 kg object. What is the acceleration? ( how did you do it )
    13·1 answer
  • you work for a moving company and have to pick up some furniture. you quickly find out that chairs made from solid wood are much
    8·1 answer
  • On the periodic table, there are two numbers in the block for the element potassium, K: 19 and 39.098. What are the names of the
    10·2 answers
  • The picture shows a loop of wire rotating in a magnetic field in a generator. Determine the direction of the current through the
    5·2 answers
  • What is true about the elements that make up a mineral?
    5·1 answer
  • What must happen to an object in order to accelerate it?
    11·1 answer
  • A roller coaster is moving 10 m/s and a mass of 7 kg. The roller coaster has
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!