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
Likurg_2 [28]
3 years ago
12

An object elongates from a length of 45 cm to a length of 55 cm. The percent strain is

Physics
1 answer:
suter [353]3 years ago
5 0

Answer:

22%

Explanation:

55 - 45 = 10

10/45 simplifies to 2/9

2/9 = 0.22222... so 22.22% (rounded 22%)

You might be interested in
A 1.6 Kg bird that is flying through the air has 220 J of kinetic energy. How fast is the bird flying?
xxTIMURxx [149]

Answer:

v = 16.58 m/s

Explanation:

Given that,

Mass of a bird, m = 1.6 kg

Kinetic energy of the bird, K = 220 J

We need to find the speed of the bird. The formula for the kinetic energy is given by :

E=\dfrac{1}{2}mv^2

Where

v is the speed of the bird

So,

v=\sqrt{\dfrac{2E}{m}}

Put all the values,

v=\sqrt{\dfrac{2\times 220}{1.6}}\\\\v=16.58\ m/s

So, the speed of the bird is equal to 16.58 m/s.

3 0
3 years ago
I WILL GIVE BRAINLIEST!!!
AnnZ [28]

Answer:

7.27 m/s

Explanation:

40/5.5 = 7.27m/s

8 0
3 years ago
Consider a glider flying at 400 meters altitude, when suddenly all its static ports become blocked by volcanic ash. The pressure
Furkat [3]

Answer:

the airspeed indicated by the pitot-tube driven airspeed indicator is 91.23m/s

Explanation:

Pitot tube

U = \sqrt{\frac{(p_t - p_s)2}{d} }

U = velocity(m/s)

p_t= stagnation pressure (pa)

p_s= static pressure (pa)

d = fluid density(kg/m³)

p_t = p_a_t_m + \frac{1}{2} dv^2

v = true velocity

= 101325 + 1/2(1.225)(25)²

p_t = 101,707.8125pa

p_s = 96,610pa

d = 1.225kg/m³

U = \sqrt{\frac{2(101,707.8125 - 96,610)}{1.225} } \\\\U = 91.23m/s

the airspeed indicated by the pitot-tube driven airspeed indicator is 91.23m/s

5 0
3 years ago
Pls help me I don’t get it :(
Ksju [112]

Answer:

2nd and 4th

Explanation:

4 0
3 years ago
What is your angular position 75 seconds after the wheel starts turning, measured counterclockwise from the top? Express your an
AveGali [126]

Complete Question

A Ferris wheel on a California pier is 27 m high and rotates once every 32 seconds in the counterclockwise direction. When the wheel starts turning, you are at the very top.

What is your angular position 75 seconds after the wheel starts turning, measured counterclockwise from the top? Express your answer as an angle between 0∘ and 360∘. Express your answer in degrees.

Answer:

\phi=123.75

Explanation:

From the question we are told that:

Height h=27m

Period T=32sec

Time t=75sec

Generally the equation for angular velocity is mathematically given by

\omega=\frac{2 \pi}{T}

\omega=\frac{2 \pi}{32}

\omega=0.196rad/s

Therefore

\theta=\omega t

\theta=0.196rad/s*75sec

\theta=843.75 \textdegree

Therefore

\phi=\theta-2(360)

\phi=123.75

6 0
3 years ago
Other questions:
  • A ball of mass m and radius R is both sliding and spinning on a horizontal surface so that its rotational kinetic energy equals
    11·1 answer
  • What is shown in the diagram
    15·2 answers
  • Will two sounds of 50 db constitute a sound of 100 db . Explain
    14·1 answer
  • Bands of waves in the electromagnetic spectrum are arranged in order of
    7·1 answer
  • At T = 0C and p = 1000mb, 1 g of dry air receives an amount of heat during an isochoric process. It is then observed that its p
    5·1 answer
  • 1. Calculate the kinetic energy of a moving object, its mass= 100 kg, and its velocity= 12 m/s.
    11·1 answer
  • What is the change in potential energy of the coil when it is rotated 180 ∘ so that its magnetic moment is parallel to the field
    10·1 answer
  • The intensity of sunlight incident on the surface of a solar panel on your roof is 1000 W/m^2. Calculate the sunlight energy abs
    11·1 answer
  • A 20-kg object sitting at rest is struck elastically in a head-on collision with a 10-kg object initially moving at 3.0 m/s. Fin
    13·1 answer
  • Think of 3 ways that an environment might change. Be specific and explain how
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!