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
Aliun [14]
3 years ago
11

Mr. Miles zips down a water-slide starting at 15 m vertical distance up the scaffolding. Disregarding friction, what is the velo

city of the Mr. Miles at the bottom of the slide? (g = 9.81 m/s2.)
Physics
1 answer:
lilavasa [31]3 years ago
5 0

Answer:

The velocity of the Mr. miles is 17.14 m/s.

Explanation:

It is given that,

Mr. Miles zips down a water-slide starting at 15 m vertical distance up the scaffolding, h = 15 m

We need to find the velocity of the Mr. Miles at the bottom of the slide. It is a case of conservation of energy which states that the total energy of the system remains conserved. Let v is the velocity of the Mr. miles. So,

v=\sqrt{2gh}

g is the acceleration due to gravity

v=\sqrt{2\times 9.8\times 15}

v = 17.14 m/s

So, the velocity of the Mr. miles is 17.14 m/s. Hence, this is the required solution.

You might be interested in
A 50 kg bicyclist, traveling at a speed of 12 m/s, applies the brakes, slowing her speed to 3 m/s.
Bezzdna [24]

a) Work done = Net Kinetic Energy

= 1/2 x 50 kg x ((12m/s)^2 - (3m/s)^2)

= 0.5 x 50 Kg x (144 -9)(m/s)^2

= 3375 Kg (m/s)^2

b) Force = mxa

a = 120 N/50 Kg = 2.4 m/s^2

Using newtons third law of motion, we get-

V^2 - U^2 = 2 x a x S

S= (12^2-3^2)m^2/s^2/(2 x 2.4 m/s^2)

= 28.125 m


3 0
4 years ago
2 bulbs in a series what is the current​
Basile [38]
It doubles I believe
5 0
4 years ago
In the experiment shown below, which is greater, the force of gravity on the pith balls (Fg) or the electrostatic force between
Paraphin [41]

Answer:

Electronic force

Explanation:

Maybe because its warmer and may have more force

8 0
3 years ago
NHT0015
poizon [28]

Answer:

(1) 1×10⁻⁴

Explanation:

From the question,

α = (ΔL/L)/(ΔT)............. Equation 1

Where α = linear expansivity of the metal plate, ΔL/L = Fractional change in Length, ΔT = Rise in temperature.

Given: ΔL/L = 1×10⁻⁴, ΔT = 10°C

Substitute these values into equation 1

α  = 1×10⁻⁴/10

α = 1×10⁻⁵ °C⁻¹ .

β = (ΔA/A)/ΔT................... Equation 2

Where β = Coefficient of Area expansivity, ΔA/A = Fractional change in area.

make ΔA/A the subject of the equation

ΔA/A = β×ΔT.......................... Equation 3

But,

β = 2α.......................... Equation 4

Substitute equation 4 into equation 3

ΔA/A = 2α×ΔT................ Equation 5

Given: ΔT = 5°C, α = 1×10⁻⁵ °C⁻¹

Substitute into equation 5

ΔA/A = ( 2)×(1×10⁻⁵)×(5)

ΔA/A  = 10×10⁻⁵

ΔA/A  = 1×10⁻⁴

Hence the right option is (1) 1×10⁻⁴

3 0
3 years ago
What is the lupac<br>name<br>H3C – CHT<br>the H₂ - CH - CH2<br>CH₂<br>CH₂<br>CH3​
dimulka [17.4K]

Answer:??

Explanation:

5 0
3 years ago
Other questions:
  • What is a molecule called when it has more than one element?
    14·2 answers
  • A person is able to exert 500 N of force while moving a wheelbarrow. The work done on the wheelbarrow is 1500 J. How far was the
    7·1 answer
  • Which of the following is a typical property of an iconic compound
    10·2 answers
  • A statement that can be proven by observation or measurement is known as a(n): a. opinion b. value c. fact d. belief   Please se
    14·2 answers
  • How could you make a sound wave have a lower pitch
    12·1 answer
  • With certain exceptions, Class E airspace extends upward from either 700 feet or 1,200 feet AGL to, but does not include,A) 14,5
    5·1 answer
  • In Parts B and C you saw that, according to Bohr's postulate, the electron radius r and the electron velocity v only have certai
    11·1 answer
  • A boy runs 40m towards east. he then walks 30m towards north. The boy again runs 50m towards north making an angle of 30° with e
    9·1 answer
  • A sinusoidal wave is reflected at the surface of a medium whose properties are such that half the incident energy is absorbed. C
    5·1 answer
  • You have a 40-Hz sound wave and a 5,000-Hz sound wave. Both are traveling
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!