Two friends, Joe and Sam, go to the gym together to strength train. They decide to start off with an exercise called flat bench press. Lying flat on a bench with his arms in an extended position, each friend slowly lowers (to his chest) and then raises a barbell back to the starting position. They start off by using a 33.0 kg barbell. Joe is taller than Sam, which means Joe's arms are 58.8 cm long whereas Sam's are 61.0 cm. Calculate the work done by Joe Woe when he raises the barbell to finish one repetition. The acceleration due to gravity is 9.81 m/s². WJoe = J

Q: С. 25% D. 0.0075% E. 10% 9. The specific heat of water is 4186 J/kg- C, which is twice higher than…

A:

Q: Problem 1: A 5.7-m ladder rests against a wall as shown. The ladder has a mass of 26.3 kg. A 58.3-kg…

A: Draw the free-body diagram of the ladder.

Q: Starting from one point, a dog walks 25 m in a direction 60° south of west and then walks 50 m…

A: d1→ = 25 m (-cos60oi^ - sin60oj^)d1→ = -12.5i^ - 21.65j^ md2→  = -50 j^ m

Q: A person leaps from an airplane 9000 feet above the ground and deploys her/his parachute after 11…

A: First, let's calculate how fast the person is falling when the parachute is deployed, which happens…

Q: Consider the two vectors, A = 17.5x + 10.5y B = 3.1x - 3.5y a)What is the magnitude of the vector A…

A: Given,  A= 17.5 x + 10.5 y B= 3.1 x - 3.5 y We need to calculate,  a)What is the magnitude of the…

Q: Can you answer problem 1? Can you also provide a short explanation for the answer you chose?

A: Here, Rp is the effective resistance of two parallel resistors.

Q: Provide solution with steps

A: Step 1:

Q: what is the result of (4.00 m x 1.70 m)/0.60 m with proper number of significant figures?

A: Significant figures shows the number of digits used to express a measured quantity. Few rules of…

Q: D) Convert 60 MPH to Feet per Second. With the following equalities; 1 mile = 1760 yards, 1 yard = 3…

A: The conversion can be done as follows: Mile per hour is used to measure the speed. The mile per hour…

Q: Problem 1: Suppose A (-3.03 m)i + (4.35 m)j, B = (2.71 m)i + (-4.29 m)j + (2.99 m)k, and D = (-2.48…

A: Determine the magnitude of the given vectors as follows. A=-3.03 m2+4.35 m2=5.30 mB=2.71 m2+-4.29…

Q: The magnitude of vector A is 22.5 units and points in the direction 335° counterclockwise from the…

A: Given that the magnitude of the given A vector is 22.5units, and the vector is pointed…

Q: A dog in an open field runs 10.0 m east and then 30.0 m in a direction 51.0 ∘ west of north. In what…

A: First, we need to break down the dog's initial movements into their x (east-west) and y…

Q: Please answer it within 30 minutes. I will upvote! Find the resultant vector of the following…

A: The given vectors have the following magnitudes and directions v1=7.5i^v2=15j^ Since the vectors are…

Q: This explanation is very confusing.  Can you be so kind and detail the steps and math calculations.…

A:

Q: A rocket is launched from rest at ground level. The air resistance, or drag force, of the rocket is…

A: Drag Force (Fdrag)=-0.75 NImpulse provided by Rocket engine (Iengine)=2.20 N·sTime (t)=0.80 sMass…

Q: The distance around the loop in my neighbourhood is 0.50 km. If I run exactly 3 laps of the loop,…

A: For a given object it's change in position vector in a particular direction is termed as…

Q: An object is dropped from rest and takes 2.41 seconds to reach the ground below. From what distance…

A: The height from which the object was dropped can be determined by the following kinematics equation.…

Q: Give all answers for this problem to 2 significant figures. Convert the following vectors from…

A:

Q: Vector v = . Find the angle in which the vector v points (measured counterclockwise from the…

A:

Q: The following shows an incomplete motion diagram illustrating the explosion of a 100 g object moving…

A:

Q: GM What is the orbital velocity and period of a ring particle at the outer edge of Saturn's A ring?…

A: Concept used: Orbital velocity around a planet depends on mass of planet and distance of body from…

Q: uhh it says the correct answer should be 2.9 m... how would I go about getting to that answer?

A: Here we use conservation of energy to solve the problem initially when we compressed the spring…

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.