What power is required to perform this task

Assignment Help Physics
Reference no: EM13555398

A skier of mass 70.0 kg is pulled up a slope by a motor-driven cable.

(a) How much work is required to pull the skier a distance of 60.0 m along a 30.0degree slope (assuming friction and air resistance are negligible) at a constant speed of 2.00 m/s?

(b) A motor of what power is required to perform this task? can you please show me the steps please!

Reference no: EM13555398

Questions Cloud

What is the absolute pressure in the water : A "U" shaped tube (with a constant radius) is filled with water and oil, What is the absolute pressure in the water at the very bottom of the tube
What is the predetermined overhead rate : What is the predetermined overhead rate?
Human body must maintain its core temperature : The human body must maintain its core temperature inside a rather narrow range around 37°C. Metabolic processes, notably muscular exertion, convert chemical energy into internal energy deep in the interior. From the interior, energy must flow out ..
Explain what are the concentrations of the two dyes : A sample containing an unknown mixture of A and B is measured in a 1.00 cm path length cuvette and its absorbances are found to be 0.182 at 465 nm and 0.398 at 575 nm. What are the concentrations of the two dyes in the unknown
What power is required to perform this task : A skier of mass 70.0 kg is pulled up a slope by a motor-driven cable. A motor of what power is required to perform this task
What is the payback period : What is the payback period?
Define waterfall be for the water to change temperature : How high must a waterfall be for the water to change temperature by 0.1K during its fall (assuming no evaporation)
Find the energy transferred to or from it by heat : A thermodynamic system undergoes a process in which its internal energy increases by 490 J. At the same time, 250J of work is done on the system. Find the energy transferred to or from it by heat?
Why is resistance to change frequently demonised : Why is resistance to change frequently demonised as a problem that must be managed'' what are the ethical implication of this and how else can resistance be understood''

Reviews

Write a Review

Physics Questions & Answers

  Q1 a thermos contains 175 cm3 of coffee at 85deg c to cool

q1. a thermos contains 175 cm3 of coffee at 85deg c. to cool the coffee you drop two 13-g ice cubes into the thermos.

  Find where on the other side must the second child sit

Two children are playing on a balanced seesaw. One child with a mass of 40 kg sits 1.6 m from the center. Where on the other side must the second child sit

  Obtain the acceleration of the car

A car starts from rest and accelerates uniformly over a time of 5.21 seconds for a distance of 110 m. Determine the acceleration of the car

  Compute the voltage across the capacitor

Two 2.50-cm-diameter disks spaced 1.70mm apart form a parallel-plate capacitor. The electric field between the disks is 5.00×105V/m. What is the voltage across the capacitor

  What is the temperature of the cold reservoir

An ideal engine has an efficiency of 0.605 and uses gas from a hot reservoir at a temperature of 502 K. What is the temperature of the cold reservoir

  What is the initial kinetic energy of the car

A 1000kg car moving 40m/s skids to a stop. During the skid, the only force is the frictional force between the tires and the road, What is the initial kinetic energy of the car

  An arrow is shot at an angle of above the horizontal.

An arrow is shot at an angle of above the horizontal. The arrow hits a tree a horizontal distance away, at the same height above the ground as it was shot. Use for the magnitude of the acceleration due to gravity.Find , the time that the arrow spends..

  Find the maximum values for the charge and current

In the circuit the inductor is 2.65H and when connected to a capacitance C it will form a low frequency oscillator of 20.0 Hz. The circuit is energized by charging the capacitor with a 12.0 V battery (switch at a) first and then connecting L and C..

  What is the equilibrium position of the block

A 5.00 kg block carrying a charge Q=60.0?C is connected to a spring for which k=100N/m (see diagram below). The block lies on a frictionless horizontal track, What is the equilibrium position of the block

  What is the radius of the resulting path

A car of mass = 1200 traveling at 65 enters a banked turn covered with ice. The road is banked at an angle , and there is no friction between the road and the car's tires. What is the radius of the turn if = 20 (assuming the car continues in unifo..

  Find the point where potential energy of the system is max

an object is thrown upward to a person of a roof . at what point is the objects kinetic energy at its max? at what point is the potential energy of the system at a max

  A string is wrapped tightly around a fixed pulley

A string is wrapped tightly around a fixed pulley that has a moment of inertia of 0.0352 kg m2 and a radius of 12.5 cm. The string is pulled away from the pulley with a constant force of 5.00 N. As the string unwinds the pulley begins to rotate. What..

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd