5. A 98-N sack of grain is hoisted to a storage room 50 m above the ground floor of a grain elevator. a. How much work was required? b. What is the potential energy of the sack of the grain at this height? c. The rope being used to lift the sack of grain breaks just as the sack reaches the storage room. What is the kinetic energy does the sack have just before it strikes the ground floor?

Q: 2. Four unequal resistors are connected in series with each other. Which one of the following…

A: Given:-  Four unequal resistors are connected in series with each other. Which one of the following…

Q: Four unequal resistors are connected in a parallel with each other. Which one of the foll owing…

A: A shunt circuit is defined together where all components are connected between an equivalent set of…

Q: Calculate the shortest wavelength of light emitted by the hydrogen atom.

A: Wavelength

Q: 9. A container made of a metal has a mass of 3.5 kg and contains 19 kg of water. A 0.050 kg cube of…

A: The temperature at which ice melts is called the melting point. The melting point of ice is 0 °C.

Q: 11) A student performs an experiment with three unknown fluids and obtains the following…

A:

Q: Two particles are fixed to an x axis: particle 1 of charge q1= 2.92 x 10 8C at x = 20.0 cm and…

A:

Q: Table 2: Relationship between Torque and Force with distance constant. Distance(m) Force (N) Torque…

A: The data for torque versus force is given when the distance remains constant

Q: 2. What happens then, if we had a collection of n equally and positive charges? Write down the…

A:

Q: 6. A car initially traveling W eastward turns north by traveling in a circular path at uniform speed…

A: The car completes an arc of length 235 m in 36 s. This arc length corresponds to half of a…

Q: Question 3. A force F pulls a box of mass m at an angle of 6 above the horizontal. The coefficient…

A: Given data The force magnitude is F The angle of inclination is θ The mass of the box is m The…

Q: Two speakers, emitting identical sound waves of wavelength 2.0 m in phase with each other, and an…

A: Given-Wavelength () = 2 m Distance between two speakers (r) = 6 m Distance between observer and…

Q: L: 3.1 m 2. Using appropriate machinery, you lift a load by pulling 22 meters of rope with a force…

A:

Q: [Vertical] Earth Astronauts land on a strange planet with a breathable atmosphere very much like…

A:

Q: 12. A golfer drives a ball from its tee. The speed of the ball is 30 ms-1. The mass of the ball is…

A: Given: The speed of the ball is v=30 m/s. The mass of the ball is m=50 g. The contact time between…

Q: 15. Given the circuit below, find the following. 11 12 13 24 V RE R2 R3 10 0 20 N 30 n Rr= I =. V =…

A: Voltage of the circuit is V = 24 V Magnitude of resistance 1 is R1 = 10 ohms Magnitude of resistance…

Q: A student stands at the

A: (a) Initial position of the stone x=0 my=50.0 m (b) Components of initial velocity Horizontal…

Q: 2. A light travels and strikes a mirror at 400. What is the angle of reflection? a. 100 b. 200 с.…

A: 2) Given: Here, θi is the incidence angle.

Q: 12 and 13 if not just number 12

A: Comment: Since we only answer up to  1 question, we’ll answer the 1st question only. Please resubmit…

Q: 6. Sketch and solve for the 2 reactive forces. A 20 meter long 500 kg mass beam is supported at eacl…

A:

Q: Q6. Compute the total binding energy and binding energy per nucleon for a) 7Li, b) 56Fe, and d) 235U

A: The binding energy () of a nucleus is given by the expression,…

Q: Question 2. The tub of a washing machine goes into its spin cycle, starting from rest and gaining…

A: Formula of number of angular acceleration is as follows: α=ω-ω0t…

Q: 1. 125 mm 125 mm 200 mm 200 mm 150 mm 60 mm

A:

Q: 2. Deduce the eigenvalues of the Harmonic oscillator using second quantization.

A: Solution: The hamiltonian of the linear harmonic oscillator can be written as,…

Q: A bike rider approaches a hill with a speed of 8.50 m/s. The total mass of the bike and rider is…

A:

Q: List two differences For the wave below travels at 4 cm/s. W wavelength into per

A: Two differences between the sound wave and lightwave    Sound is longitudinal waves, light waves…

Q: Electric Field in Parallel Plates Problem Two charged parallel plates are separated by a distance of…

A: Given:- d= 12 cm = 0.12 m ∆V= 750 V

Q: A projectile is launched with a velocity of 25 m/s at an angle of 20 degrees with respect to the…

A: Give that velocity v= 25 m/s angle θ=20°

Q: If the third-order bright fringe of 650 nm light is observed at an angle of 34° when the light falls…

A: Since you have asked multiple question, we will solve the first question for you. If youwant any…

Q: the distance is 125 ft, the throw degrees 2. An outfielder throws to the second baseman is at a…

A:

Q: IOLab Dongle ID 0 - IDLE M Remote 1: Not Paired . Remote 2: Not Paired O Record + Add run S Restart…

A: The slope of the velocity-time graph is acceleration.

Q: The thermal efficiency of a reversible power cycle operating between hot and cold reservoirs is 70%.…

A:

Q: Question 2 Given a particle travels along a path described by the parabola y = 0.5x². The…

A: Given: The path of a particle is y=0.5x2. The x-component of velocity is vx=5t ft/s. The time taken…

Q: The mass center G of the 1545-kg rear-engine car is located as shown in the figure. Determine the…

A: Equilibrium occurs when a particle is acting under no external force. The particles can either be at…

Q: An old-fashioned LP record rotates at 33½ rpm. What is its frequency in rev/s? What is its period,…

A: Given Data The old fashioned LP record rotates at a rate ω=3313 rpm   We have to calculate its…

Q: 1. One day in Chapman's class, three students decided to attempt to push a 100kg desk across the…

A: The condition for an object to stay at rest is the net force on the object is zero.

Q: A beam contains 1.7 x 1010 doubly charged positive ions per cubic centimeter, all of which are…

A:

Q: 3. If one of the masses is tripled, how does the gravity change? If the din Ruitu ohange?

A:

Q: One long wire lies along an x axis and carries a current of 36 A in the positive x direction. A…

A: Given,current carrying wire, I1 = 36 A (along positive x-direction)another long wire perpndicular to…

Q: A 0.5 kg ball moves in a circle that is 0.4 m in radius at a speed of 4.0 m/s. Calculate its…

A: Given mass of the ball is m = 0.5 kg and the radius of the circle is R =  0.4 m in radius and the…

Q: 2. Determine the magnitude of electric field value if a distance of 35 cm from a 0.00050 C charge.

A:

Q: A person starts from rest at the top of a large frictionless spherical surface, and slides into the…

A: use energy conservation and  force balance equations

Q: W o = 5.67 x 10-8 m2 K Nglass = 1.5, 1.33, nwater Question 1 Light is incident on the surface of a…

A:

Q: QUESTION 6 Consider two large Einstein solids, A and B, in equilibrium with the following…

A: Consider two large Einstein solids, A and B, in equilibrium with the following parameters # of…

Q: Question 3 The block on a smooth inclined plane is moving down with a constant acceleration of 5…

A: Given: The mass on an inclined plane is 47 kg. The hanging mass is 23 kg. The angle of inclination…

Q: 15. There are 750 registered voters in one precinct. In a primary election, 64 out of 100 voters…

A: so given that only 64 out of a hundred voter actually voted so the voting in percentage is  64% ( 1%…

Q: 3. An open tank contains brine to a depth of brine is 1,030 kg/m³ and density of oil is 880 kg/m².…

A: Given:- Brine depth  = 2.0 m  oil on top of the brine = 3 m  density of brine = 1030 kg/m3  density…

Instantaneous Power

Power is defined in physics as the amount of energy transmitted or transformed per unit time. The watt is the unit of electricity in the International System of Units, equivalent to one joule per second.