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
pishuonlain [190]
3 years ago
5

Exam

Physics
2 answers:
Sergeeva-Olga [200]3 years ago
5 0
Answer: D- output force

Explanation: for example, you exert force on the handle of a shovel when you use it to lift soil. You exert the improve force that moves the machine on a certain distance, called the input distance. The force the machine exerts on the object (DIRT) is called the output force.
Sedaia [141]3 years ago
3 0
Out put work
explanation:
You might be interested in
How much physical activity should an adult have each week?
Mars2501 [29]

d 30 minutes a day , 5 days a week

4 0
3 years ago
Read 2 more answers
The Olympic record for a marathon is 2.00 hour 9.00 minute 21.0 seconds if the average speed of the runner achieving this record
iren2701 [21]
(2.00 hours) x (3,600 seconds/hour)  =  7,200 seconds

(9.00 minutes) x (60 seconds/minute)  =  540 seconds

The record time = (7,200 + 540 + 21) = 7,761 seconds

Distance  =  (speed) x (time)

                 = (5.436 m/s) x (7,761 sec)  =<span>  42,188.8 meters
________________________________________________
</span>
The official length of the marathon run is  42,195 meters.
If we divide that by the record time in the question, we get

                       5.4368... m/s .

Rounded to the nearest thousandth, that's  5.437 m/s.

If the question had given the speed as  5.437  instead of  5.436 ,
then we would have calculated the distance to be 

            (5.437 m/s) x (7,761 sec)  =<span>  42,196.6 meters,

4.6 meters closer to the official distance than the answer we did get.
</span>
3 0
3 years ago
Please help I’m so confused
elena55 [62]

Answer:

The velocity of sound is greatest in option a water option be here option c vacancy option d metals.

Explanation:

5 0
3 years ago
The force acting between two charged particles a and b is
Nina [5.8K]

Answer: The correct answer is B. trust me, I just took that test. :)

6 0
3 years ago
i need help please. this is for physics but everything i search for related to this comes up as chemistry
Annette [7]

The car tyre contains air initially at a pressure of 195 kPa after travelling several km the temperature of the air inside a car tyre rises from 30 to 70°C if the tyre is rigid and does not expand then the new pressure inside the tyre would be 220.74 kPa.

<h3>What is pressure?</h3>

The total applied force per unit of area is known as the pressure.

The pressure depends both on externally applied force as well the area on which it is applied.

The mathematical expression for the pressure

Pressure = Force /Area

the pressure is expressed by the unit pascal or N /m²

By using the Charles law for gases which states that the volume of the gas remains constant then the pressure of the gas is directly proportional to the temperature.

As given in the problem the tyre is rigid and does not expand this means the volume of the tyre remains constant.

The mathematical expression for Charles's law is as follows

P₁/P₂ = T₁/T₂

First, we have to change the temperature from degree Celcius to the kelvin temperature scale

K = 273 + C

where k is the temperature in kelvin and the C is degrees of Celcius

Initially, the temperature was 30° C

T₁ = 273 + 30

T₁ = 303 K

Then after travelling the temperature of the air inside a car tyre rises from 30 to 70°C

T₂= 273+ 70

T₂ =343 K

The car tyre contains air initially at a pressure of 195 KPa

P₁ = 195 kPa

Lets us take the final pressure of the air would be P₂

By substituting the values in the formula

P₁/P₂ = T₁/T₂

195/P₂ = 303/343

P₂ = 220.74 kPa

Thus, the new pressure inside the tyre would be  220.74 kPa.

Learn more about pressure learn more

brainly.com/question/28012687

#SPJ1

7 0
1 year ago
Other questions:
  • The Moon and Earth rotate about their common center of mass, which is located about RcM 4700 km from the center of Earth. (This
    7·1 answer
  • Using the formula 1/2 (m x v2), what is the kinetic energy of a 4 kg rock falling through the air at 5 m/s
    8·1 answer
  • At this rate, how long would it take for two continents 3500 kilometers apart to collide?
    15·1 answer
  • Compare the wavelengths of an electron (mass = 9.11 × 10−31 kg) and a proton (mass = 1.67 × 10−27 kg), each having (a) a speed o
    15·1 answer
  • The force measuring instrument is called
    12·2 answers
  • Write down the formula of expansion
    14·1 answer
  • Please help me I am desperate this is due now
    7·2 answers
  • A tennis ball moves 16 meters northward, then 22 meters southward, then 12 meters northward, and finally 32 meters southward.
    13·1 answer
  • After turning on the power source connected to your two electrodes, we expect to see the microbeads moving through the solution.
    8·1 answer
  • What is so soothing about the ocean? And why are some people afraid of the ocean?
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!