Practice 1. A person cutting a flat lawn pushes a lawnmower with a force of 125 N at an angle of 40.0° below the horizontal for 12.0 m. Determine the mechanical work done by the person on the lawnmower. [ans: 1.15 kJ] 2. A father pulls a child on a toboggan along a flat surface with a rope angled at 35.0° above the horizontal. The total mechanical work done by the father over a horizontal displacement of 500 m is 2410 | Determine the work done on the toboggan by the normal force and the

Q: Two kids decided to play with their toys, balls. The first kid is on the ground (0.00 meter),…

A: We are given 2 balls. One is at ground and other at a height. We are given that the 2 balls collide…

Q: 300K, T2 = 400K, and T3 500K. Draw Calculate T4 (see Figure 1) knowing that T1 the V-T and P-V cycle…

A:

Q: Can u solve the whole question for me

A: Solution: a). let x be the distance moved along the inclined plane by mass m1 and velocity v. At the…

Q: A 5.0-kg block moves in a straight line on a horizontal frictionless surface under the influence of…

A:

Q: Which of the following best represents A R=A+B? B L

A: If two vectors are represented both in magnitude and direction by the two sides of a triangle taken…

Q: As a ball falls under the influence of gravity, does gravity do positive work or negative work?…

A:

Q: (a) If the system is released from rest, what is the minimum mass of block B needed to move crate A…

A:

Q: Can someone help me with problem, I need help with question A and B and I was wondering if you can…

A: Given, Surface charge density is  η=3.2μC/m2 and the diameter of the circular hole. The distance of…

Q: Forced undamped motion satisfies a differential equation of the form d2y oy F sin(wt B) dt2

A: The differential equation of a forced undamped motion is

Q: fig 5 10tm Me= In Figure 5. the electron on the right side is fixed. and the one on the left side…

A: Given Initial separation between the electrons (Ri) = 10-8 m Initial velocity of first electron = 0…

Q: 8. (II) Estimate the average force exerted by a sho a 7.0-kg shot if the shot is moved through a 2.8…

A:

Q: 4. Consider a particle bound by an infinite spherically symmetric well potential V(r). Write the…

A: question 4

Q: 3. A roller coaster car is at the top of a 3.5 x 10 m hill, above the ground. It starts from rest.…

A: solution of above question given in below step.

Q: 2. A 3/4 inch diameter rivet is used to fastened two 25 mm thick plate. If the shearing stress of…

A: Diameter of rivet d=3/4 inch=1.9*10-2m, Plate thickness t=25mm, Shearing stress of rivet s=80…

Q: how did you get L=0.0228

A: The period of oscillation, T=0.30s. We know the acceleration due to gravity on the earth surface is,…

Q: The newton's second law states that "force equals mass times acceleration" True or false? "

A: Newton's second law of motion states that the net force acting on a body equals mass times…

Q: Analyze the diagram. Ans: Fnet = 2.0 N Ans: Fnet 0N b. Proof this if it is equal to zero. Write your…

A:

Q: Figure 4 shows a parallel RLC circuit. The instantaneous voltage (and rms voltage) across each of…

A: Concept This circuit can be solved using the vector method (phasor method). In this case the…

Q: T-shaped bracket supports the four loads shown. Determine the reactions at A and B (a) if a = 10

A:

Q: To make a 0.42 μF capacitor, what area must the plates have if they are to be separated by a 3.0 mm…

A: Given: In this question, the given details are, The given value of the capacitor is,  C=0.42…

Q: WR 2n/w The power (P) supplied to an electric circuit is given by P = i? dt. If i = V * I sin(wt),I…

A:

Q: please have step by step solution and explain the problem. i need you to explain the steps with…

A: Step 1: Step 2: Step 3: Step 4:

Q: 18. A 65-kg basketball player jumps vertically and leaves the floor with a velocity of 1.80 m/s.…

A:

Q: A student is measuring the quality of industrial grease as it ages. To keep the measurement simple,…

A:

Q: 7. A circular area with a radius of 0.374 m lies in the xy plane. What is the magnetic flux through…

A: Given: The radius of the loop is 0.374 m. The strength of the magnetic field is 1.16 T.

Q: A capacitor with initial charge qo is discharged through a resistor. What multiple of the time…

A: Given: The capacitor with initial charge qo is discharged through a resistor. To find the multiple…

Q: Pls help ASAP. Pls show all work and calculations and include units for final answers.

A: In this question answer is given below. It is helpful for you ?

Q: Compute the reactions at points A and B. Consider smooth surfaces. 120 lb -5.75 in.- 1.25 in. B

A:

Q: 5. (a) There are two equations given in the following: B. da = 0 and $ B.di = 0. Can you explain…

A:

Q: Your character starts at position po. Each frame, it moves along the normalized vector at constant…

A:

Q: The car in this figure is at rest and at the origin when t = 0. Assuming that its acceleration is…

A:

Q: 7. In the picture below R1 = 100 w; R2 = 50w and three ideal batteries & = 6.0 V. ɛ2 = 5.0 V. And ɛz…

A:

Q: The concepts in this problem are similar to those in Multiple-Concept Example 4, except that the…

A: I have used the concepts of Newton's law of motion. And work energy theorem

Q: opt

A: Given: Gravitational acceleration is 16 m/s2

Q: 3. Prove and show that the gusset plate connection of a truss has a resultant equal to 0. y F, = 6…

A:

Q: I was wondering how did you guys get zero for answer c

A: As we know that, the average velocity is given by the formula -…

Q: A charge is transferred from an initially uncharged plastic ball to an identical ball 17 cm away.…

A: Given:-  A charge Q is transferred from an initially uncharged plastic ball to an identical ball.…

Q: Three point charge q1, q2 and q3 are shown in figure (This figure is not drawn to scale). Does it…

A:

Q: ghout the yea

A: Given: Rope's tension is 505 N.

Q: 1986M1. The figure above shows an 80-kilogram person standing on a 20-kilogram platform suspended by…

A: mass of person = M = 80 kg mass of platform = m = 20 kg