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
yarga [219]
2 years ago
7

A catapult with a just-ejected ball flying through the air. A catapult's lever holds a cannonball. The lever is attached to a ti

ghtly held rope. When the rope is released, the lever springs forward and launches the cannonball. When the rope is held tightly, which form of energy does it possess? thermal nuclear gravitational elastic
Physics
2 answers:
VladimirAG [237]2 years ago
5 0

Answer:

he string has POTENTIAL ELASTIC energy

Explanation:

he catapult is a very good example of energy transformations.

Initially when the string is taut it has an elastic potential energy, when releasing the lever it is transformed into cinetic energy in the ball until it shoots out.

Consequently the string has POTENTIAL ELASTIC energy

victus00 [196]2 years ago
4 0

Answer:

The answer is elastic

TRUST ME

Explanation:

You might be interested in
Air at 80 kPa and 400 K enters an adiabatic diffuser steadily at a rate of 6000 kg/h and leaves at 100 kPa. The velocity of the
PilotLPTM [1.2K]

Answer:

a)  425.6 K = 152.6 degree Celsius

b)  678.6 square centimeter

Explanation:

Initial enthalpy = Final enthalpy

m(h1 + v1^2/2) = m(h2 + v2^2/2)

(h1 + v1^2/2) = (h2 + v2^2/2)

h 2 = (h1 + v1^2/2) - (v2^2/2)

h 2 = 400.98 + (230^2 – 30^2)/2 * 10^-3

= 426.98 KJ/Kg

T2 = T1’ + (T2’ -T1’)(h2-h1’)/( h2’-h1’)

T2 = 420 + (430-420)(431.43-421.26)(426.98-421.26)/(431.43 – 421.26)

T2 = 425.6 K = 152.6 degree Celsius

Area = mRT2/P2V2

Area = (600/60*60*1) *0.287*425.6/(100*30) *10^4

Area = 678.6 square centimeter

3 0
2 years ago
A car traveling with constant speed travels 150 km in 7200 s what is speed of the car
spayn [35]

The speed of the car is exactly 150/7200 km/sec, or 125/6 meters/sec. 

In more familiar units, that speed is equivalent to ...

-- (20 and 5/6) meters/sec

-- 75 km/hour

8 0
3 years ago
The latent heat of vaporization of a substance is the amount of energy associated with doing which of the following to 1 kg of t
mr Goodwill [35]
Converting it from liquid to gas
6 0
3 years ago
Read 2 more answers
What type of phase change occurs when water vapor in the atmosphere changes to liquid water in clouds?
Mekhanik [1.2K]

Answer:

condensation, the process of changing from a gas to a liquid

3 0
3 years ago
A horizontal spring with stiffness 0.4 N/m has a relaxed length of 11 cm (0.11 m). A mass of 21 grams (0.021 kg) is attached and
riadik2000 [5.3K]

Answer:

0.6983 m/s

Explanation:

k = spring constant of the spring = 0.4 N/m

L₀ = Initial length = 11 cm = 0.11 m

L = Final length = 27 cm = 0.27 m

x = stretch in the spring = L - L₀ = 0.27 - 0.11 = 0.16 m

m = mass of the mass attached = 0.021 kg

v = speed of the mass

Using conservation of energy

Kinetic energy of mass = Spring potential energy

(0.5) m v² = (0.5) k x²

m v² = k x²

(0.021) v² = (0.4) (0.16)²

v = 0.6983 m/s

5 0
3 years ago
Other questions:
  • Which of the following are advantages of
    10·1 answer
  • To what tension must you adjust the string so that, when vibrating in its second overtone, it produces sound of wavelength 0.767
    13·1 answer
  • Molecules that contain two polar bonds are _____.
    14·2 answers
  • A box is sitting on the ground and weighs 100 kg and the coefficient of friction is 0.23. Is it easier to push by applying the f
    7·1 answer
  • What is the sl unit for momentum
    13·1 answer
  • If the force being applied to an object is doubled, what will happen to its<br> acceleration?
    12·1 answer
  • What are shadows?<br> A: Human dopplegangers<br> B: Absence of light
    8·2 answers
  • HELPPPP WILL MARK B IF CORRECT!!!!
    9·2 answers
  • What is diamagnetic materials, paramagnetic materials, ferromagnetic materials?​
    12·2 answers
  • What is the wave speed of a wave with a period of 5 seconds and a wavelength of 50 meters?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!