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
kherson [118]
2 years ago
15

Cavity wall insulation costs £240 but will save you £32 each year. What is the payback time for cavity

Physics
1 answer:
likoan [24]2 years ago
5 0

Answer:

Thus, the payback time for cavity wall insulation is 7.5 years

You might be interested in
Sound travels through different mediums using..
astra-53 [7]

Answer:

Tranverse Waves

Explanation:

Your welcome

4 0
1 year ago
A 2.0-kg laptop sits on the horizontal surface of the seat of a car moving at 8.0 m/s. The driver starts slowing down to stop. F
ivanzaharov [21]

Answer: 32.65\ m

Explanation:

Given

mass of laptop m=2 kg

The velocity of car u=8 m/s

The coefficient of static friction is \mu_s=0.4

The coefficient of kinetic friction is \mu_k=0.2

As the car is moving, so the coefficient of kinetic friction comes into play

deceleration offered by friction \mu_kg=0.2\times 9.8\ m/s^2

Using the equation of motion v^2-u^2=2as\\

insert the values

0^2-8^2=2(-0.2\times 9.8)s\\\\s=\dfrac{64}{1.96}\\\\s=32.65\ m

4 0
3 years ago
How many electrons are in an element with an atomic number of 20 and an atomic mass of 40? options: ANSWER FOR BRAINLIES
mafiozo [28]

Answer:

B

Explanation:

4 0
3 years ago
Read 2 more answers
I need help with this question
Juli2301 [7.4K]

Answer:

Centripetal force is the force that keeps the yoyo going in a circle, if the string breaks, the yoyo would would fly off in a direction that is different to the point on the circle.

8 0
3 years ago
Ideal mechanical advantage is equal to the displacement of the effort force divided by the displacement of the load.
ELEN [110]
This would be false. hope this helps. good luck :)
3 0
3 years ago
Other questions:
  • Why is it sensible on diagrams to represent a force by an arrow?
    6·1 answer
  • PLZ HELP FAST!!!!!!!!!Which characteristics describe a maritime polar air mass? A.cold and humid air B.cold and dry air C.warm a
    8·1 answer
  • Natural selection is part of which step of speciation? *
    12·2 answers
  • Longitudinal waves travel through a series of ___ and ___ PlEASE HELP FAST!!!!!!
    7·1 answer
  • The relationship between gas pressure and gas volume is described by ________.
    7·2 answers
  • Which of the following has the greatest inertia ?
    11·1 answer
  • Potential energy = 0 J Kinetic energy =
    15·1 answer
  • Which statement best explains why Earth’s outer core is in liquid form? The iron-nickel alloy melts due to hot temperatures. The
    14·2 answers
  • All satellite eventually lose their orbital energy and plummet to earth because of______.
    5·1 answer
  • An object of height 8.50 cm is placed 20.0 cm to the left of a converging lens with a focal length of 12.0 cm. Determine the ima
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!