What is the efficiency of the system

Assignment Help Physics
Reference no: EM13666073

A worker uses a pulley system to raise a 24.0kg carton 16.5 m. A force of 129 N is exerted and the rope is pulled 33.0m.

1. What is the MA of the pulley system?

2. What is the efficiency of the system?

Reference no: EM13666073

Questions Cloud

How long does it take to reach its highest point : A ball is thrown vertically upward by a speed of +10.0 m/s. How high does it rise? How long does it take to reach its highest point?
A noisy machine in a factory produces sound by a level : A noisy machine in a factory produces sound by a level of 80 dB.  How many identical machines could you add to the factory without exceeding the 90 dB limit?
Is the cyclist ahead of or behind the car : At rest, a car's horn sounds the note A (440 Hz). The horn is sounded while the car is moving down the street. A bicyclist moving in the similar direction with one third the car's speed hears a frequency of 415 Hz. What is the speed of the car? Is th..
Two masses are on a frictionless horizontal surface : Two masses are on a frictionless horizontal surface moving by 2 perpendicular directions (m1=m & m2=3m). After the collision the m1 mass stops. What is the velocity of mass m2 after the collision, if before the collision of the masses v1=5m/s and v2=..
What is the efficiency of the system : A worker uses a pulley system to raise a 24.0kg carton 16.5 m. A force of 129 N is exerted and the rope is pulled 33.0m. What is the MA of the pulley system?
Speed and direction of each ball after the collision : A ball of mass 0.640 kg moving east (+x direction) with a speed of 3.20 m/s collides head-on by a 0.480 kg ball at rest. If the collision is perfectly elastic, what will be the speed and direction of each ball after the collision?
White light strikes diffraction grating at normal incidence : White light strikes a diffraction grating (890 lines/mm) at normal incidence.  What is the highest order visible maximum that is formed?
What is the pressure in atmospheres at this depth : The deepest point in the ocean is 11 km below sea level, deeper than Mt. Everest is tall. What is the pressure in atmospheres at this depth?
What is the average density of the mixture : 60 g of gasoline is mixed with 60 g of water. What is the average density of the mixture? 40 cm3 of gasoline are mixed with 40 cm3 of water. What is the average density of the mixture?

Reviews

Write a Review

Physics Questions & Answers

  An inclined plane of angle

An inclined plane of angle ? = 20.0° has a spring of force constant k = 495 N/m fastened securely at the bottom so that the spring is parallel to the surface as shown in the figure below. A block of mass m = 2.39 kg is placed on the plane at a dis..

  Estimate what is the kinetic energy of rotation

Each of the three helicopter rotor blades is 5.20 mlong and has a mass of 280 kg. What is the kinetic energy of rotation

  Find how much work is done on the hovercraft by the force

A hovercraft of mass 69.0 kg can move on a horizontal surface, the x-y plane. How much work is done on the hovercraft by the force during this time

  What is the speed of sound in the substance

A 539 Hz sound wave travels through a substance. What is the speed of sound in the substance

  Calculate the displacement of a particle in the rope

A 15m long rope of m=1.8kg is stretched such that the tension in the rope is 25N. calculate the displacement of a particle in the rope at t=10s, when the wave is at x=0.5m

  In a diffraction grating experiment a hydrogen source is

can two monochromatic sources of significant frequency difference produce an observable interference pattern?in a

  What is the total mass of the reagents

What is the total mass of the reagents used in the combustion throughout the 30 days . The ball makes 17 oscillations in 16 seconds. What is it the mass of the ball.

  How deep can the sub safely dive

A circular window with 0.5m radius on a submarine can withstand a maximum pressure of 8900 N/m^2. How deep can the sub safely dive

  Find the average power at the circuits resonant frequency

An RLC series circuit has a 2.50 ? resistor, a 100 µH inductor, and an 80.0 µF capacitor. Find the average power at the circuits resonant frequency

  Compute the magnitude of the average resultant force on ball

A 1.4-kg playground ball is moving with a velocity of 3.0 m/s directed 30° below the horizontal just before it strikes a horizontal surface. compute the magnitude of the average resultant force on the ball

  Determine how long is it before they meet

Two people initially separated by 75 m move toward each other. One with a speed of 3 m/s, how long is it before they meet

  Determine by how much does each spring stretch

An object is attached to the lower end of a 100-coil springthat is hanging from the ceiling. By how much does each spring stretch

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