Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Physics Expert

Q1. Two children seat themselves on the see-saw. The one on left has a weight of 400 N whereas the one on right weighs 300 N. The fulcrum is at the mid-point of the see-saw. If the child on the left is not at end however 1.50 m from the fulcrum is and the see-saw is balanced, find out the torque given by the weight of the child on right?

a) 600 N•m
b) 450N•m
c) -600 N•m
d) -450 N•m
e) 0 N m

Q2. The quantity ‘moment of inertia’ (in terms of basic quantities of mass, length and time) is equal to:

a) ML2T2
b) ML
c) ML2
d) ML1T2
e) ML2

Q3. The total kinetic energy of a baseball thrown with spinning motion is the function of:

a) Its linear speed however not rotational speed.
b) Its rotational speed however not linear speed.
c) Both linear and rotational speeds.
d) Neither linear nor rotational speed.
e) None of the above.

Q4. A bowling ball consists of a mass of 7.0 kg, a moment of inertia of 2.8 x 102 kgm2 and a radius of 0.10 m. If it rolls down the lane devoid of slipping at a linear speed of 4.0 m/s, determine its total kinetic energy?

a) 45 J
b) 32 J
c) 11 J
d) 78 J.
e) 85 J.

Q5. The solid sphere of mass 4.0 kg and radius 0.12 m begins from rest at the top of the ramp inclined 15, and rolls to the bottom. The upper end of ramp is 1.2 m higher than the lower end. Find out the linear speed of the sphere when it reaches the bottom of ramp? (I = 0.4MR2 for a solid sphere and g = 9.8 m/s2)

a) 4.7 m/s
b) 4.1 m/s
c) 3.4 m/s
d) 2.4 m/s
e) 1.8 m/s

Physics, Academics

  • Category:- Physics
  • Reference No.:- M99928

Have any Question? 


Related Questions in Physics

1what is the significance and physics error when v

1. What is the significance and physics error when V = V bi  which makes X pn =0 and C d  =∞? 2. Show mathematically that the majority carrier storage capacitances in the two QNL's of the p/n junction are already include ...

Please answer all parts providing detailed explanations or

Please answer all parts providing detailed explanations or complete calculations. A clear and well-drawn sketch please. A compelling  demonstration  of an optical surprise uses a curved mirror to project a real image of ...

How much energy is required to accelerate a spaceship with

How much energy is required to accelerate a spaceship with a rest mass of 123 metric tons to a speed of 0.559 c? Every day our Earth receives 1.55×1022 J energy from the Sun. If we were able to use 1.05 percent of this e ...

In problems 99-100 show that the curves meet at least once

In Problems 99-100, Show that the curves meet at least once and determine whether the curves are perpendicular at the point of intersection.

Explain how flight is achieved please provide an example

Explain how flight is achieved. Please provide an example and use  three concepts or laws to support  your explanation and example.

Wilke and hougan27nbspstudied the mass-transfer

Wilke and Hougan 27  studied the mass-transfer characteristics of packed beds containing granular solids. In their experimental investigations, hot air was blown through a packed bed of porous celite pellets saturated wi ...

Demographics beliefs finances independence and many other

Demographics, beliefs, finances, independence, and many other factors may affect an individual's or a couple's options for living environments. Because of the importance of proper environment choice, you have been given ...

1 a rock is suspended form a scale reads 100 n a beaker of

1) A rock is suspended form a scale reads 10.0 N. A beaker of water is raised up so the rock is totally submerged in the water. The scale now reads 6.25 N. What is the density of the rock? ((answer: 2.67 times the densit ...

A mass on a spring vibrates in simple harmonic motion at a

A mass on a spring vibrates in simple harmonic motion at a frequency of 4.0 Hz and an amplitude of 4.0 cm. If a timer is started when its displacement is a maximum (hence x =4cm when t=0), what is the acceleration magnit ...

It has been generally known to si technologists such as the

It has been generally known to Si technologists (such as the CCD or Charge Coupled Device and high efficiency solar cell engineers) that iron impurity is a rather nuisance recombination center because it is highly unstab ...

  • 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

WalMart Identification of theory and critical discussion

Drawing on the prescribed text and/or relevant academic literature, produce a paper which discusses the nature of group

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