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
ivanzaharov [21]
3 years ago
15

An old clock has a spring that must be wound to make the clock hands move. Which statement describes the energy of the spring an

d hands of the clock?
A) The spring has kinetic energy and the hands have kinetic energy.


B) The spring has kinetic energy and the hands have potential energy.


C) The spring has potential energy and the hands have potential energy.
Eliminate

D) The spring has potential energy and the hands have kinetic energy.
Physics
2 answers:
Allushta [10]3 years ago
6 0

Answer:

D) The spring has potential energy and the hands have kinetic energy.

Explanation:

Since the hands are in motion and the spring is wound, the spring has potential energy and the hands have kinetic energy.

kondaur [170]3 years ago
4 0
<span>D) The spring has potential energy and the hands have kinetic energy. </span>
You might be interested in
Part a consider a bird that flies at an average speed of 10.7 m/s and releases energy from its body fat reserves at an average r
Alex787 [66]
<span>436 km The conversion factor between kilocalorie/hour and watts is 1.163 (1 kcal/hr = 1.163 watt). So let's convert the energy consumption of the bird from watts to kcal/hr 3.7 w / 1.163 w hr/kcal = 3.18 kcal /hr 1 gram of fat has 9 kcal, so the total number of kcals consumed will be 4 * 9 = 36. So the bird can fly for 36/3.18 = 11.32 hours The distance traveled will be 11.32 h * 3600 s/h * 10.7 m/s / 1000 m/km = 436 km</span>
5 0
3 years ago
what should be the angle between two vectors of same angle so that their resultant is equal to either of them?​
asambeis [7]

So, the angle between two vectors having equal magnitude is equal to 120º.

Explanation:

<h2>:) Correct me if I'm wrong...</h2>
3 0
2 years ago
The dispatcher of courier service receives a message from truck A that reports a position of +5 after a displacement of +2. What
Romashka [77]

The formula we need to use is displacement.

d=\Delta{x}=x_f-x_i, where xf is final position and xi is initial position.

We report the final position of 5 and the displacement of 2 so the formula is now:

2=5-x_i\Longrightarrow x_i=3.

So the initial position of truck A is 3.

Hope this helps.

r3t40

8 0
3 years ago
A motorcycle starts to move from rest. If the velocity of the motorcycle becomes 90 km/hr
bagirrra123 [75]

Explanation:

90 kmhr—1 x 1000/3600 = 25ms—1

U = 0 ms—1

V = 25ms—1

t = 10 s

a = ?

a = V - U/t

a = 25 - 0/10

a = 25/10

a = 2.5 ms—1

6 0
2 years ago
Which of the following is required to change the scientific knowledge base
Ksenya-84 [330]
Scientific knowledge is based upon observation, and it is supplemented by experimentation.<span> Scientific research follows the scientific method, a four-step process that guides scientists in the accumulation of knowledge.</span>
5 0
3 years ago
Other questions:
  • A 25 n object requires a 5.0 n to start moving over a horizontal surface. what is the coefficient of static friction?
    5·2 answers
  • A 55 meter rope is lying on the floor and has has a weight of 4040 N in total. How much work is required to lift up one end of t
    9·1 answer
  • A white dwarf is:______.
    5·1 answer
  • A horse gallops along a racecourse at a speed of 40km/h. It takes the horse 3 minutes to run the length of the track. Convert 3
    7·1 answer
  • What is the number of the lowest energy level that contains an f sublevel?. . 3. . 4. . 5. . 6
    9·1 answer
  • An electron has a kinetic energy of 3.00 ev. find its wavelength. (b) what if? a photon has energy 3.00 ev. find its wavelength.
    11·1 answer
  • Which of the following statements about the conservation of momentum is not correct? Momentum is conserved for a system of objec
    7·1 answer
  • secondary voltage = primary voltage · (secondary turns / primary turns)secondary turns = (secondary voltage / primary voltage) ·
    5·1 answer
  • (c) The ball leaves the tennis player's racket at a speed of 50 m/s and travels a
    7·1 answer
  • Please help no trolls no links
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!