A block of mass M is positioned underneath an overhang that makes an angle ß with the horizontal. You apply a horizontal force of Mg on the block, as shown in Fig. 2.27. Assume that the friction force between the block and the overhang is large enough to keep the block at rest. What are the normal and friction forces (call them N and Ff) that the overhang exerts on the block? If the coefficient of static friction is , for what range of angles ß does the block in fact remain at rest?

Q: A beam of light going through air hits a piece of glass. The light is refracted as it enters. This…

A: Detailed solution is given below:

Q: 3.4. A woman stands 2.0 m in front of a convex mirror and notices that her image height is 1/4 of…

A: Given, women is stands in front of the convex mirror,u = 2.0 mimage heigth, hiwomen height, hohi =…

Q: For the human eye, as the object distance changes, what remains constant? Choose all that apply. O…

A: The human eye is a convex lens that forms a real and inverted image of the object on the retina. The…

Q: When an object is 43.0 cm from a concave mirror, it creates a magnification of -0.350. At what…

A:

Q: 7. A man is standing 2.60 m in front of a convex spherical mirror of radius of curvature 4.40 m. How…

A: Object distance (u) = -2. 60 m Focal length= 4.40÷2=2.20 m

Q: ind the image distance and linear magnification for a small object on the optical axis, 20.3 cm from…

A: Given: The distance of the object from the lens is 20.3 cm. The focal length of the lens is -10 cm.

Q: When viewed through a magnifying glass, a stamp that is 1.1 cm wide appears upright and 6.7 cm…

A: Answer :-  The equation for magnification is -       M = - di / do  where M is the magnification, di…

Q: An object is placed 35 cm in front of a diverging mirror having a focal length of magnitude 79 cm.…

A:

Q: 2. A ray of light strikes a thick sheet of a transparent material with n= 1.66 at an angle of e, =…

A: Given :     n = 1.66 ( refractive index )     ∅1 = 49°  Find out ∅2 .     For that we used snell's…

Q: 3. A relativistic muon is travelling through space at a speed of 0.95c. An observer on Earth tracks…

A: Speed of muon: v= 0.95c  Time interval in Earth frame of reference: ∆t'= 1.0 ms= 1.0 x 10-3 s.

Q: When viewed through a magnifying glass, a stamp that is 1.4 cm wide appears upright and 6.9 cm wide.…

A:

Q: When viewed through a magnifying glass, a stamp that is 2.3 cm wide appears upright and 4.9 cm wide.…

A: Object height =2.3cm Image height=+4.9cm Magnification=image heightObject height=4.9cm2.3cm=2.13

Q: It is 166 cm from your eyes to your toes. You're standing 220 cm in front of a tall mirror. How far…

A:

Q: 5. A diverging lens has a focal length that has a magnitude of 32.0 cm. An object is placed 23.5 cm…

A: Given, focal length magnitude = 32.0 cm Diverging lens is also known as concave lens and has…

Q: 8.For Spring mass damper system, m=1 Kg, k=1N/m, c=1/4 N.s/m, subjected to harmonic excitation force…

A: Given- Mass (m) = 1 Kg K = 1 N/m, c = 1/4 N.s/m Amplitude (F) = 2 N Frequency (ω) =4 rad/sec

Q: When viewed through a magnifying glass, a stamp that is 1.1 cm wide appears upright and 8.0 cm wide.…

A:

Q: 19. The image produced by a convex (converging) lens is always virtual and enlarged always virtual…

A: To find: The image produced by the convex lens is:

Q: What about the air and water makes the pencil look strange? b. Approximately where does the tip of…

A: A. As we know air has less density than water so the penicil would seem shortened and risen up due…

Q: A fish appears to be 2.50 m below the surface of a pond when viewed almost directly above by a…

A:

Q: ind the focal length of the glass lens in both figures?

A:

Q: When viewed through a magnifying glass, a stamp that is 1.9 cm wide appears upright and 4.3 cm…

A: given data: height of image (h') = 4.3 cm height of object (h) = 1.9 cm   formula used:…

Q: When viewed through a magnifying glass, a stamp that is  2.6 cm  wide appears upright and  7.5 cm…

A: Magnification (m) is given asMagnification (m) = image dimensionobject dimension

Q: I have attached an image of the problem I am having trouble on. I have written my answer but am not…

A:

Q: 13. Atwood's machine is shown in the diagram. They (one is 3 kg and the other is 5 kg) were attached…

A:

Q: People who do very detailed work close up, such as jewellers, often can see objects clearly at much…

A: Distance=25cm

Q: When viewed through a magnifying glass, a stamp that is 1.3 cm wide appears upright and 6.1 cm wide.…

A: Write the given values of the problem- Size of the image=6.1 cm Size of the object=1.3 cm

Newton's Second Law

Newton’s laws of motion describe the relationship between the motion of an object and forces acting on it. Newton’s law of motion has two types as follows: