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

1 implement the covariant ica algorithm and apply it to toy

1. Implement the covariant ICA algorithm and apply it to toy data. 2. Create algorithms appropriate for the situations: (a) x includes substantial Gaussian noise; (b) more measurements than latent variables (J > I); (c) ...

What impact does the telephone have on the social

What impact does the telephone have on the social organization, ideology, and values of this country? What about cell phones or the Internet?

Starting from rest a runner reaches a speed of 27 ms in 20

Starting from rest, a runner reaches a speed of 2.7 m/s in 2.0 s. In the same 2.0 s time, a motorcycle increases speed from 38.0 to 43.0 m/s. In both cases, assume the acceleration is constant. (a) What is the accelerati ...

The purpose of this problem is to show in three ways that

The purpose of this problem is to show in three ways that the binding energy of the electron in a hydrogen atom is negligible compared with the masses of the proton and electron. (a) Calculate the mass equivalent in u of ...

From the top of a cliff a person throws a stone straight

From the top of a cliff, a person throws a stone straight downward. The initial speed of the stone just after leaving the person's hand is 8.9 m/s. (a) What is the acceleration (magnitude and direction) of the stone whil ...

In an electrical outlet the voltage v in volts is given as

In an electrical outlet, the voltage, V , in volts, is given as a function of time, t, in seconds, by the formula (a) What does V0 represent in terms of voltage? (b) What is the period of this function? (c) How many osci ...

The principal elementary reactions in the oxidation of

The principal elementary reactions in the oxidation of methane that involve CH4 itself are these: First, write the rate law for the disappearance of CH4 in this oxidation.Then use this to obtain a differential equation f ...

1 find the equations of the tangent lines at x 2 to the

1. Find the equations of the tangent lines at x = 2 to the ellipse 2. Find the equation of the tangent line to the curve y = x 2 at x = 1. Show that this line is also a tangent to a circle centered at (8, 0) and find the ...

Several thin sheets of naphthalene 025 cm thick and 10 cm

Several thin sheets of naphthalene, 0.25 cm thick and 10 cm square, are arranged parallel to each other with their centers at 1-cm intervals. Air at 273 K and 1:013 × 10 5  Pa enters this sandwich arrangement with a bulk ...

1 how many silicon atoms are there for the energy band

1. How many silicon atoms are there for the energy band diagram shown in Figure. Is the number of levels in the conduction and valence bands drawn consistently and why? 2. How many energy levels are there in the Ge valen ...

  • 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