Lifting force does work in raising the helicopter

Assignment Help Physics
Reference no: EM13654248

A helicopter, starting from rest, accelerates straight up from theroof of a hospital. The lifting force does work in raising the helicopter. An 810-kg helicopter rises from rest to a speedof 9.0 m/s in a time of 3.5s. During this time it climbs to a height of7.8m. What is the average power generated by the lifting force?

Reference no: EM13654248

Questions Cloud

What angle of refraction does ray leave the glass at point : The drawing shows a rectangular block of glass (n = 1.52)surrounded by liquid carbon disulfide (n = 1.63). A ray oflight is incident on the glass at point A with a θ =27.0° angleof incidence. At what angle of refraction does the ray leave the glass a..
Evaluate what is the heat flow into the gas : Three moles of an ideal monatomic gas expand isothermally at a temperature of 21°C. If the volume of the gas quadruples during this process, what is the heat flow into the gas
Estimate the heat flow into or out of the gas : If 3.10 moles of a monatomic ideal gas at a temperature of 300 K are expanded isothermally from a volume of 2.05 L to a volume of 5.95 L, calculate the heat flow into or out of the gas
Find what is the average kinetic energy per molecule : Three moles of a monoatomic ideal gas are placed in a portablecontainer with a volume of 0.0029 m3. The temperature ofthe gas is 250°C. What is the average kinetic energy per molecule
Lifting force does work in raising the helicopter : A helicopter, starting from rest, accelerates straight up from theroof of a hospital. The lifting force does work in raising thehelicopter. An 810-kg helicopter rises from rest to a speedof 9.0 m/s in a time of 3.5s. During this time it climbs to a h..
What is the ratio ofthe kinetic energy of the heavier box : The drawing shows two boxes resting on frictionless ramps. One boxis relatively light and sits on a steep ramp. The other box isheavier and rests on a ramp that is less steep. The boxes arereleased from rest at A and allowed to slide down the ramp..
What is the linear speed of the cheetah along its path : Cheetahs running at top speed have been reported at an astounding 110 km/h (about 69 mi/h) by observers driving alongside the animals. Imagine trying to measure a cheetah's speed by keeping your vehicle abreast of the animal while also glancing at..
The flywheel of a steam engine runs : The flywheel of a steam engine runs with a constant angular speed of 150 rev/min. When steam is shut off, the friction of the bearings stops the wheel in 2.7 h. (a) What is the constant angular acceleration, in revolutions per minute-squared, of t..
What is approximate maximum emf induced in the coil : The pickup coil in an electric guitar contains 10,000 turnsand has a diameter of 2.1 mm. When thepickup coil is very close to a guitar string, there is a field ofmagnitude B = 0.09 T in thecoil. If this steel string is vibrating at a frequency of2..

Reviews

Write a Review

Physics Questions & Answers

  Define spectrum-discuss how spectra are used in astronomy

Define a spectrum and discuss how spectra are used in astronomy. Explain how emission and absorption lines are produced and discuss the information they convey. Describe how the spectrum of an object emitting thermal radiation can be used to find the..

  While in a third floor office building you notice a ball

while in a third floor office building you notice a ball moving straight upward just outside the window. it takes 0.17

  Find the charge stored on the on the capacitor

Two capacitors, one 17.5 ?F and the other 12.2 ?F are connected in series across a 15 V battery. What is the charge stored on the 12.2 ?F capacitor

  Find fraction of the original kinetic energy of puck

A hockey puck B rests on a smooth surface of ice and is struck by a second puck A , which was originally traveling at = 40.0, What fraction of the original kinetic energy of puck A dissipates during the collision

  An object is launched with an initial velocity of 234 ms

an object is launched with an initial velocity of 23.4 ms at an angle of 38.5 degrees above the horizontal. it lands on

  How many kilograms of water are put on the fire

A fire truck attaches two fire hoses to a hydrant to fight a fire. each hose has a diameter of 20 cm. How many kilograms of water are put on the fire in 30 minutes

  A nonconducting spherical shell with an inner radius

A nonconducting spherical shell, with an inner radius of 7.4 cm and an outer radius of 9.9 cm, has charge spread nonuniformly through its volume between its inner and outer surfaces.

  Calculate the centripetal acceleration of the car

Cloverleaf exits are approximately circular. A 740 kg automobile is traveling 60 mph while taking a cloverleaf exit that has aradius of 44.5 m. Calculate the centripetal acceleration of the car and the centripetal force on the car

  What is the speed of the fragment

A 3kg object moving along the positive x direction with a speed of 10m/s exploeds into a 2kg and a 1kg fragments. what is the speed of the 2kg fragment?

  Determine the maximum particle speed

A sound wave of frequency 1840 Hz., propagating through air at 0 degrees Celsius, has a pressure amplitude of 15.0 Pa. What is the maximum particle speed

  Determine what is the magnification of the mirror

A small postage stamp is placed in front of a concave mirror (radius = 1.3 m), such that the image distance equals the object distance. What is the magnification of the mirror

  What is the maximum oscillation amplitude

An ultrasonic transducer, of the type used in medical ultrasound imaging, is a very thin disk (m=0.10g ) driven back and forth in SHM at 1.0 MHz by an electromagnetic coil, What is the maximum oscillation amplitude that won't rupture the disk

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