A uniform ladder of mass 12 kg and length 4 m leans in equilibrium against a frictionless wall. The ladder makes and angle of 60º with the floor. What is the minimum coefficient of friction between the ladder and the floor?

Q: Consider the modified Atwood machine problem illustrated in Example 6.4 on page 274 of the book, and…

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Q: 9. Three point-like charges are placed as shown in the figure, a = 38.0 cm and b = 48.0 cm. Find the…

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Q: Determine the maximum safe load P if a factor of safety of 3.75 with respect to failure by yield is…

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Q: Initially, there is 50 mg of a certain radioactive material present and after two hours, it is…

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Q: You are in a helicopter towing a 128-kg laser detector that is mapping out the thickness of the…

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Q: The jetski has a mass of 200 kg and a speed of 20 m/s. How much work will it take to stop it?…

A: Given value--- Mass = 200 kg. initial speed = 20 m/s. final speed  = 0 m/s. We have to find---…

Q: In each of the cases below, four charges are fixed in place as shown. The grid spacing is d and is…

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Q: A particle, starting from point A in the drawing (the height at A is 3.00 m), is projected down the…

A: Write the given values with the suitable variables. hA=3 mhf=6.93 m Here, hA and hf are the height…

Q: At a certain time a particle had a velocity of 18 m/s in the positive x-direction, and 2.4 s later…

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Q: Only two forces act on an object (mass=1.54 kg), as in the drawing. Find (a) the magnitude and (b)…

A: Acceleration a = F/m

Q: 57007 i. Heat is absorbed by a zºg granite boulder with Specitiv Heat of Oil cally'l temperature to…

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Q: Starting from rest, a race car moves straight up an incline with a 37.0° angle at a constant…

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Q: On earth, two parts of a space probe weigh 17300 N and 4920 N. These parts are separated by a…

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Q: Why did you use the micrometer caliper instead of the vernier caliper in determining the diameter of…

A: Given : Micrometer Caliper is instrument for making precise linear measurements of dimensions such…

Q: 15. A copy-cat daredevil tries to reenact Evel Knievel's 1974 attempt to jump the Snake River Canyon…

A: 15 a)   let launch speed be v m/s. let time taken be t seconds. then for horizonal motion:…

Q: A fire hose ejects a stream of water at an angle of 31.3° above the horizontal. The water leaves the…

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Q: What is the difference in magnitude between a system that operates in nanoseconds and one that…

A: Time:- A fundamental quantity is time.  The dimension of it is [T]. A system that functions in…

Q: A 15.1-kg box is being pushed from the bottom to the top of a frictionless ramp. When the box is…

A: Given:

Q: TU D B А Given Â= 1.00 – 1, B= 2009. Ĉ= -3.00 D=-4.00 9. and R=A+B+C+D, Calculate R.

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Q: 1. A 0.33m long violin string has a mass of 1.42g. Calculate its fundamental frequency of vibration…

A: As per guidelines , only first question is solved here. Given, Length of string , L = 0.33 m  mass ,…

Q: itan has a radius of 2500.0 km and a mean density of 2.0 g/cm3. Earths moon has a radius of 1737.0…

A: Given: The radius of the Titan is 2500 km. The mean density of the Titan is 2 g/cm3. The radius of…

Q: A sprinter is running a 100m long race. She begins at rest, then increases her speed steadily for at…

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Q: A ball is thrown upward with an initial velocity of 20.0 m/s .How high will it go?

A: Given value--- A ball is thrown upward with an initial velocity of 20.0 m/s. We have to find---…

Q: The basketball player likes to release his foul shots with an initial speed vo= 23.5 ft/sec. What 2…

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Q: A student holds a ball 1.55 meters above the ground and drops it. Her friend uses a stopwatch and…

A: Given: height of the ball above the ground (y) = 1.55 m            time taken by the ball to hit the…

Q: Note that the gravitational acceleration at equatorial sea level is 32.174 ft/s2 and that its…

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Q: ● ● Average speed (Vav) is the rate at which is covered. It is a scalar quantity. It can also be…

A: Introduction:-  Average speed- We know that the Average speed of the object is defined as the…

Q: Using the figure below, suppose the moving rod is 150 cm long, the velocity v is 3.5 m/s, the total…

A: Given  Length, L = 150 cm  = 1.50 m Velocity, V = 3.5 m/s  Resistance, R = 0.045 ohm  Magnetic…

Q: As a sailboat sails 53 m due north, a breeze exerts a constant force F₁ on the boat's sails. This…

A: Given  As a sailboat sails 53 m due north, a breeze exerts a constant force F, on the boat's sails.…

Q: Which force causes the highest moment (clockwise and counterclockwise) about Point D?

A: Moment of F1 about point D is    = F1 ×AD= 10×(3+1+2)      = 60 N.m   clockwise Moment of F4 is…

Q: A girl launches a toy rocket from the ground. The engine experiences an average thrust of 5.26 N.…

A: The thrust experiences by the rocket, F=5.26 N The initial mass of the rocket, mi=25.3 g The mass of…

Q: Using Kirchhoff's rules, find the following. (ℰ1 = 71.0 V, ℰ2 = 62.0 V, and ℰ3 = 78.8 V.) A circuit…

A: Given data: The resistance R1=2.00 kΩ=2000 Ω The resistance R2=3.00 kΩ=3000 Ω The resistance R3=4.00…

Q: This figure (lal = 24.5 m/s2) represents the total acceleration of a particle moving clockwise in a…

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Q: Which of the following expressions involving vectors is TRUE? Note: Quantities written with two…

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Q: ositivephysics A student releases a marble from the top of five different ramps. The student records…

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Q: An airplane flies at an airspeed of 448km/hr. The pilot wants to fly 786km to the north. She knows…

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Q: The brakes of a truck cause it to slow down by applying a retarding force of 3190 N to the truck…

A: Write the expression for the work done. Here, F is the force, d is the distance, and θ is the angle…

Q: 3. Suppose a football was punted, and left the punter's foot at height of 1.00 m above the ground…

A: The maximum horizontal distance traveled by the projectile, where d is the total horizontal…

Q: 2. find the magnitude & Direction that act @ ✓ 630 Force #force that acts 10 N @ 0⁰ and 30 N porce…

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Q: Consider the function x(t) = 23 - 3.2t  describing the position of a carriage traveling along…

A: Given  X(t) = 23 - (3.2)t  Speed at t = 5 sec is ,

Q: Suppose a soccer player kicks the ball from a distance 26 m in the direction of the goal. Find the…

A: horizontal distance (d) = 26 m let the initial velocity of the ball = v final height (h) = 2.4…

Q: Titan has a radius of 2700.0 km and a mass of 1.4x1023kg. What is the escape velocity in km/s from…

A: Given value--- Titan has a radius of 2700.0 km. mass = 1.4x1023kg.  Titans exosphere, which begins…

Q: An antelope moving with constant acceleration covers the distance between two points 70.0 m apart…

A: Distance between the two points, S=70 m The time taken to reach the second point from the first…

Q: Two capacitors of capacitance 3C and 5C (where C = 0.17 F) are connected in series with a resistor…

A: Given : C = 0.17 F R = 6.5 ohm

Q: the 2900 00 FIGURE 37.7 The hydrogen emission spectrum. Hydrogen emission spectrum 656.5 nm The…

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Q: 8. Expres in decimal notation: a. 2.60x10-4 b. 207.8x10³ ⁹. Calculate approximately (use one…

A: Q.no 8 Part A 2.60×10^-4 = 0.00026 Part b 207.8×10^3 = 207800

Q: The pressure of the atmosphere at sea level is 1.01 × 105 N/m2. Calculate the area over which the…

A: Given data:  Atmospheric pressure (P) = 1.01×105 N/m2  Mass of car (m) = 1000 kg Force of atmosphere…

Q: A uniformly charged slab has a thickness a and charge density p. The slab is infinitely large in y…

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Q: A ball is launched from the top of a building 91.1 meters above the ground. The ball is launched…

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Q: If a = 7.4 mm, b = 3.6 mm, Q1 = 51 nC, Q2 = 88 nC, and q = 25 nC in the figure, what is the…

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Center of Gravity of a system

The centre of gravity is a property that is based on the geometry of a rigid body or any particle. It is described as an equilibrium point or a hypothetical location where the total weight of the body is concentrated.