A 7 meter long lever is used to move a large rock. You push down on one end of the lever and the rock pushes down on the other end. and there is a pivot point on the ground that pushes up on the lever 1.1 meters from the rock. Find how much force t would take to move a rock with a mass of 144 kg.

Q: 12. Calculate the center of mass of a 4 m long aluminum bar with cross-sectional area of 4 cm x 4 cm…

A: Given Data:  It is given that the length of the uniform bar is, L=4 m.  Axis of rotation is located…

Q: Two horses are pulling a barge with a mass 4000 kg along a canal, as shown in Figure 4.8 in the…

A:

Q: All spherical mirror ray diagrams work on the same principle: A) superposition B) the angle of…

A:

Q: A long straight wire carrying a current of 0.450 A has a loop with a radius of 5 cm. The current is…

A:

Q: Which two statements below are correct for sound and light traveling through air near the Earth's…

A: Required: The speed of light and speed of sound

Q: In the figure, two 6.40 kg blocks are connected by a massless string over a pulley of radius 1.50 cm…

A: We are authorized to answer one Question at a time, since you have not mentioned which question you…

Q: -ncave lens has a focal length of -3 cm. y from the lens. Find the magnification tive answer and an…

A: Focal length of  concave lens                                                   f  = - 3 cm height…

Q: Four equal +2.00-µC point charges are placed at the corners of a square 4.00 m on each side. (k =…

A:

Q: There is an electric dipole in the presence of non-uniform electric field produced by a point…

A:

Q: A spherical mirror is to be used to form an image 4.00 times the size of an object on a screen…

A: Given:Spherical mirror is 4 times the size of objectLocation of screen from object = 6 mThe mirror…

Q: If a candle is 3 meters from a thin lens with a focal length of 2 m, find the image distance A) 2 m…

A:

Q: A * 0 20% O 10:24 PM 22. A very thick wire with radius 5.0 cm has uniform current of 20 A flowing…

A:

Q: Find the frequency of a wave that has a period of 0.063 seconds.

A: If the time period of wave is T, then  Frequency f=1/T

Q: A convex lens has a focal length of 6 cm. A candle with a height of 7 cm is 17 cm away from the…

A: Using the thin lens formula, we can find the distance of the image from the lens: 1/f=1/do+1/di…

Q: 3. If V = 12 V in the circuit below R = 100 N R2= 200 N %3| R3 = 100 N R5= 300 N R4 = 150 N R, = 100…

A: Solution: Given that V = 12 V and the values of other resistors

Q: 5. An object moving in the x-y plane has a position vector given by: 7 = (2t³ - 5t)i + (6 - t¹)ĵ (in…

A: Given  r→=(2t3-5t)i^+(6-t4)j^Required average velocity

Q: number 25

A:

Q: A solid metal block with a mass of 1.30 kg is attached to a spring and is able to oscillate…

A:

Q: 8. An electron with a horizontal speed of 4.7 x 10° m/s passes through two horizontal plates, as…

A: Part(a) calculate the vertical component of the electron's final velocity. Part(b) Calculate the…

Q: 5.00 m 3.20 m 2.00 m Figure P8.3 3. A block of mass m = 5.00 kg is released from point @ and V…

A:

Q: = 201². The fan blade in a jet engine rotates from rest with the angular acceleration a = 1 9. find…

A: GIVEN         Angular acceleration = α = 20t2

Q: A 0.002 C charge and a second charge are 0.056 m apart. If the force between the charges is 8 x 107…

A: Given Data:charge q1 = 0.002 Ccharge q2 = q (unknown)distance between charges r = 0.056 mmagnitude…

Q: The figure shows the graphs of three functions. One is the position function of a car, one is the…

A: Given the graph of the three functions a, b, c. To Identify the acceleration, position function and…

Q: 6&7 please

A:

Q: According to Dynamical Systems Theory, the preferred, comfortable behavioral state of movement is…

A: This theory is applicable to the study of human movements. The strength of the theory is in the…

Q: A wheel (radius = 0.30 m) is mounted on a frictionless, horizontal axis. A light cord wrapped around…

A: Given that  mass of block m=0.5 kg radius r=0.3 m acceleration a=5 m/s^2 basing on the concept of…

Q: Two forces are applied to the construction bracket as shown. Determine the angle 0 which makes the…

A:

Angular speed, acceleration and displacement

Angular acceleration is defined as the rate of change in angular velocity with respect to time. It has both magnitude and direction. So, it is a vector quantity.

Angular Position

Before diving into angular position, one should understand the basics of position and its importance along with usage in day-to-day life. When one talks of position, it’s always relative with respect to some other object. For example, position of earth with respect to sun, position of school with respect to house, etc. Angular position is the rotational analogue of linear position.