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
Nadusha1986 [10]
3 years ago
13

A motorcycle running on gasoline wastes a large amount of energy mainly as A) heat energy and sound energy. B) light energy and

kinetic energy. C) heat energy and chemical energy. D) sound energy and chemical energy.
Physics
1 answer:
vlada-n [284]3 years ago
3 0

A motorcycle mainly wastes energy as heat <u>energy</u> and <u>sound</u> energy. In the engine, chemical energy is transformed into mechanical energy. However, the engine is inefficient and much of the chemical energy is lost as heat energy. Also, some of the energy is transformed to sound energy. This explains why the motorcycle is noisy and has an exhaust pipe.

You might be interested in
Water drips from the nozzle of a shower onto the floor 190 cm below. The drops fall at regular (equal) intervals of time, the fi
VARVARA [1.3K]

Answer:

Second drop: 1.04 m

First drop: 1.66 m

Explanation:

Assuming the droplets are not affected by aerodynamic drag.

They are in free fall, affected only by gravity.

I set a frame of reference with the origin at the nozzle and the positive X axis pointing down.

We can use the equation for position under constant acceleration.

X(t) = x0 + v0 * t + 1/2 * a *t^2

x0 = 0

a = 9.81 m/s^2

v0 = 0

Then:

X(t) = 4.9 * t^2

The drop will hit the floor when X(t) = 1.9

1.9 = 4.9 * t^2

t^2 = 1.9 / 4.9

t = \sqrt{0.388} = 0.62 s

That is the moment when the 4th drop begins falling.

Assuming they fall at constant interval,

Δt = 0.62 / 3 = 0.2 s (approximately)

The second drop will be at:

X2(0.62) = 4.9 * (0.62 - 1*0.2)^2 = 0.86 m

And the third at:

X3(0.62) = 4.9 * (0.62 - 2*0.2)^2 = 0.24 m

The positions are:

1.9 - 0.86 = 1.04 m

1.9 - 0.24 = 1.66 m

above the floor

8 0
3 years ago
At a depth of about 10 meters the water pressure on you is equal to the pressure of 1 atmosphere. the total pressure on you is t
MrRa [10]
It would be 22 depths inside the glass of water.
8 0
3 years ago
Jane has a mass of 55 kg and his body covers 700 nails with a surface area of 1.00 mm,
Oksana_A [137]

We have,

  • Jane mass is 55 kg
  • His body covered with 700 nails all of them having a surface area of 1.00 mm² each = 700 × 1 = 700 mm² = 700/1000000 = 7/10000

We know that,

  • Pressure = Force/Area

Let's calculate force as we already have area;

  • F = ma
  • F = 55 × 9.8 { Acceleration due to gravity }
  • F = 539 N

Now, if should she would be on 700 nails then pressure will be;

  • P = F/A
  • P = 539/7 × 10000
  • P = 5390000/7
  • P = 770,000 Pascal

And if should would be on a 1 nail only,

  • P = F/A
  • P = 539/1 × 1000000
  • P = 539000000 Pascal

<u>A</u><u>s</u><u>,</u><u> </u><u>y</u><u>o</u><u>u</u><u> </u><u>c</u><u>a</u><u>n</u><u> </u><u>n</u><u>o</u><u>t</u><u>i</u><u>c</u><u>e</u><u> </u><u>y</u><u>o</u><u>u</u><u>r</u><u>s</u><u>e</u><u>l</u><u>f</u><u> </u><u>t</u><u>h</u><u>a</u><u>t</u><u> </u><u>t</u><u>h</u><u>e</u><u> </u><u>p</u><u>r</u><u>e</u><u>s</u><u>s</u><u>u</u><u>r</u><u>e</u><u> </u><u>w</u><u>i</u><u>l</u><u>l</u><u> </u><u>b</u><u>e</u><u> </u><u>s</u><u>o</u><u> </u><u>h</u><u>i</u><u>g</u><u>h</u><u> </u><u>w</u><u>i</u><u>t</u><u>h</u><u> </u><u>o</u><u>n</u><u>l</u><u>y</u><u> </u><u>1</u><u> </u><u>n</u><u>a</u><u>i</u><u>l</u><u> </u><u>a</u><u>n</u><u>d</u><u> </u><u>b</u><u>e</u><u>c</u><u>a</u><u>u</u><u>s</u><u>e</u><u> </u><u>o</u><u>f</u><u> </u><u>t</u><u>h</u><u>i</u><u>s</u><u>,</u><u> </u><u>n</u><u>a</u><u>i</u><u>l</u><u> </u><u>w</u><u>i</u><u>l</u><u>l</u><u> </u><u>p</u><u>a</u><u>s</u><u>s</u><u> </u><u>through</u><u> </u><u>j</u><u>a</u><u>n</u><u>e</u><u>'</u><u>s</u><u> </u><u>b</u><u>o</u><u>d</u><u>y</u><u>.</u>

6 0
2 years ago
a 2-kg object is dropped from a height of 1000 m. What is the force of air resistance on the object when it reaches terminal vel
strojnjashka [21]
It stops accelerating when the air resistance is equal to its weight.
That's (m•g)

= (2 kg) • (9.8 m/s^2)

= 19.6 newtons
5 0
3 years ago
The area around a charged object that can exert a force on other charged objects is an electric ___
Ymorist [56]
Answer is:

Electric field.
8 0
3 years ago
Other questions:
  • What is the defenition of mass
    10·2 answers
  • What types of compounds are involved in solutions that are used to grow crystals? In your own words please
    5·1 answer
  • In Europe the standard voltage in homes is 220 V instead of the 120 V used in the United States. Therefore "100-W" European bulb
    5·1 answer
  • The proce ss by which a solid changes to a liquid is
    15·1 answer
  • A boat can move at a constant velocity of 8 km/h in still water. How long will it take for the boat to move 24 km?
    5·1 answer
  • Fuel cells have been developed that can generate a large amount of energy. For example, a hydrogen fuel cell works by combining
    15·1 answer
  • A 216-m-wide river flows due east at a uniform speed of 2.2 m/s. A boat with speed of 7.9 m/s relative to the water leaves the s
    11·1 answer
  • If you add together all of forces exerted on an object and get a non zero value this is called the _____ force on the object
    12·2 answers
  • What is the reaction force to a foot pushing down on the floor?
    14·2 answers
  • Khi tia tới hợp với pháp tuyến tại điểm một góc i = 30 độ thì tia phản xạ hợp với pháp tuyến tại điểm tới một góc
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!