Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Physics Expert

Q1. The light balloon filled with helium of density 0.18 kg/m3 is tied to the light string of length L = 3 m. The string is tied to ground, forming an ‘inverted’ simple pendulum. When the balloon is displaced slightly from equilibrium, show that the motion is simple harmonic and find out the period of motion. Take the density of air to be 1.29 kg/m3.

Q2. Expectant parents are thrilled to hear their unborn baby’s heart beat, disclosed by an ultrasound motion detector. Assume the fetus’s ventricular wall moves in the simple harmonic motion with amplitude 1.80 mm and frequency 115 per minute.

a) Find out the maximum linear speed of the heart wall. Assume that the motion detector in contact with the mother’s abdomen produces sound at exactly 2 MHz, which travels via the tissue at 1.50 km/s.

b) Find out the maximum frequency at which the reflected sound is received through the motion detector. (By electronically listening for echoes, the detector can generate beeps of sound.)

Physics, Academics

  • Category:- Physics
  • Reference No.:- M99807

Have any Question? 


Related Questions in Physics

Calculate the necessary torque of a primary machine and the

Calculate the necessary torque of a primary machine and the maximum rated power of an IG fed at 6.0 kV, 60  Hz, 4 poles, R 1  = 0.054 Ω, R 2  = 0.004 Ω, X 1  = 0.852 Ω, and X 2  = 0.430 Ω. What is the rated mechanical po ...

In no less than 100 words- are leaders born or made is

In no less than 100 words- Are leaders born or made? Is leadership more a matter of personal characteristics or a collection of specific behaviors anyone can learn?

Some proteins produced in a cell have a regulatory role a

Some proteins produced in a cell have a regulatory role. A regulatory protein controls the transcription of specific genes in the genome. This control often involves the protein's binding to a particular DNA sequence in ...

1 a vertical cylindrical tank having a base diameter of 10

1. A vertical cylindrical tank having a base diameter of 10 m and a height of 5 m is filled to the top with water at 20°C. How much water will overflow if the water is heated to 80°C? 2. A liquid in a cylinder has a volu ...

Assume a linear velocity distribution and a linear

Assume a linear velocity distribution and a linear concentration profile in the laminar boundary layer over a flat plate. Apply the boundary conditions for a laminar boundary layer and evaluate the velocity and concentra ...

A youre using a 20-cm-focal-length convex lens to image a

(a) You're using a 20-cm-focal-length convex lens to image a small light bulb. Where should you place the bulb to get a half-size real image?  (b) A movie projector uses a single lens to project a real image on a screen ...

A woman drives a car from one city to another with

A woman drives a car from one city to another with different constant speeds along the trip. She drives at a speed of 65.0 km/h for 15.0 min, 70.0 km/h for 25.0 min, makes a stop for 40.0 min, then continues at 45.0 km/h ...

Which of the following statements are fundamentally correct

Which of the following statements are fundamentally correct and which ones are fundamentally incorrect if taken at their face value without implied interpretation? Give the physics reasons. (a) Half of the energy levels ...

A 162 g mass is hung on a spring as a result the spring

A 162 g mass is hung on a spring. As a result the spring stretches 19.5 cm. If the object is then pulled an additional 3.0 cm downward and released, what is the period of the resulting oscillation? Give your answer in se ...

A bag contains one counter known to be either white or

A bag contains one counter, known to be either white or black. A white counter is put in, the bag is shaken, and a counter is drawn out, which proves to be white. What is now the chance of drawing a white counter? [Notic ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro

Describe what you learned about the impact of economic

Describe what you learned about the impact of economic, social, and demographic trends affecting the US labor environmen