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
ozzi
3 years ago
12

When a bow is stretched back and an arrow is shot what type of energy conversion has occured

Physics
1 answer:
Vesna [10]3 years ago
4 0
Elastic to kinetic energy. Bow elastic transfered to arrow kinetic energy
You might be interested in
A 66​-foot-tall woman walks at 55 ​ft/s toward a street light that is 2424 ft above the ground. What is the rate of change of th
I am Lyosha [343]

Answer:

a. \frac{dx}{dt}=20ft/s

b. \frac{d(x+L)}{dt}==25ft/s

Explanation:

Using the triangle theorem both triangle the woman makes between the light so the rate of change of length can use geometry first

tan(\beta)=\frac{24ft}{L+x}=\frac{6ft}{x}

Solve to find the rate relation

x=\frac{24}{6}*L

x=4*L

Now the rate of the change rate

\frac{dx}{dt}=4*\frac{dL}{dt}

\frac{dx}{dt}=4*5ft/s=20ft/s

Finally the rate of her shadow moving

\frac{d(x+L)}{dt}=\frac{dx}{dt}+\frac{dL}{dt}

\frac{d(x+L)}{dt}=20ft/s+5ft/s=25ft/s

5 0
3 years ago
If a boat and its riders have a mass of 900 kg and the boat drifts in at 1.4 m/s how much work does sam do to stop it?
Rama09 [41]
The initial kinetic energy of the boat and its rider is
K_i =  \frac{1}{2} mv_i^2 =  \frac{1}{2}(900 kg)(1.4 m/s)^2=882 J

After Sam stops it, the final kinetic energy of the boat+rider is
K_f = 0 J
because its final velocity is zero.

For the law of conservation of energy, the work done by Sam is the variation of kinetic energy of the system:
W=K_f-K_i =0-882 J=-882 J
where the negative sign is due to the fact that the force Sam is applying goes against the direction of motion of the boat.
6 0
3 years ago
Which event is an example of melting?
qaws [65]

Answer:

welding metal

Explanation:

5 0
3 years ago
When celery is placed in a glass of pure water the solution inside its cells is _____ compared to the water.?
kow [346]
The correct answer to the question above is hypertonic. When celery is being placed in a glass of pure water, the solution inside its cells is going to appear as hypertonic compared to the water. This means that the cells inside has a higher concentration than outside.
4 0
3 years ago
Which can a drop of liquid mercury can be described as?
Sophie [7]
Option D) A drop of mercury is both  a pure substance and and element.
Happy to assist you !
3 0
3 years ago
Read 2 more answers
Other questions:
  • The formula is x = 1/2 at^2 and I have managed to fill in the variables as this. d = 1/2 9.81 m/s^2 1^2
    9·1 answer
  • when an object moves down and does not stop which force is acting more strongly on the object, friction or gravity? explain
    13·1 answer
  • The momentuk of a 3000 kg truck is 64,300 kg at what velocity is the truck traveling
    5·1 answer
  • What is the value of the temperature 15 degrees Celsius in degrees Kelvin?
    11·1 answer
  • A worker exerts a pulling force on a box. The worker exerts this force by attaching a rope to the box and pulling on the rope so
    6·1 answer
  • Why do waves with frequencies higher than visible light hurt while those with lower frequencies do not affect us?
    6·2 answers
  • If you found yourself on the see-through side of this one-way mirror what is the best way you could prevent someone on the other
    11·1 answer
  • An electric motor and an electric generator are devices that only require magnetism. devices that only require magnetism. entire
    15·1 answer
  • A 2.0 x 10^3 kilogram car collides with a tree and is brought to
    12·1 answer
  • A solid aluminum sphere of radius R has moment of inertia I about an axis through its center. What is the moment of inertia abou
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!