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Solve the all parts of given question:
Question: A stockroom worker pushes a box with mass 12.7kgon a horizontal surface with a constant speed of 2.80m/s. The coef¬ficients of kinetic and static friction between the box and the surface are 0.310 and 0.470, respectively.
Part A: What horizontal force must the worker apply to maintain the motion of the box?
Part B: If the worker stops pushing, what will be the acceleration of the box?
I need help to solve the above question and assume +x direction coincides with the direction of velocity.
A 5.0g- lead bullet is fired into a fence post. The initial speed of the bullet is 240m/s, How much does the bullets temperature increase
A professor's office door is 0.90 wide, 2.00 high, 4.00 thick; has a mass of 30, and pivots on frictionless hinges. A "door closer" is attached to door and the top of the door frame. When the door is open and at rest, the door closer exerts the torqu..
How do you figure out a carnot engine cycle problem having temperature range from 4000k to 400k, pressure range from 1atm to 1000atm, max volume = 500 liters.and 20.31 moles of working fluid(monatomic gas). Please show steps.
A man stands at top of 600.00m building and throws 1.50kg mass(1) straight down at a speed of 10.0m/s. What is the speed of second object when they win
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A 300-g mass at the end of an ideal spring vibrates up and down in such a way that it is 2.0 cm above the tabletop at its lowest point and 16 cm above at its highest point. find the speed and acceleration of the mass when it is 12 cm above the tabl..
Monochromatic light from a distant source is incident on a slit 0.750 {rm mm} wide. On a screen 2.00 {rm m} away, the distance from the central maximum of the diffraction pattern to the first least amount is measured to be 1.35 {rm mm}.
A copper cable (p=1.7*10^-8ohms*m) is designed to carry a current of 300A with a power loss of 2W/m. What is the required radius of this cable
Water flows through a fire hose of diameter 7.09 cm at a rate of 1.2 x10-2 m3/s. What is the velocity with which the water exits the hose
A 3.0-kg 14-cm-radius cylinder, initially at rest, is free to rotate about the axis of the cylinder. A rope of negligible mass is wrapped around it and pulled with a force of 18 N.
A singly charged ion (charge q = +1.60e-19 C) completes four revolutions in a uniform magnetic field, Calculate the mass of the ion in kilograms
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