Skater is standing at rest in front of a wall

Assignment Help Physics
Reference no: EM13565746

A 47.3-kg skater is standing at rest in front of a wall. Bypushing against the wall she propels herself backward with avelocity of -2.41 m/s. Her hands are in contact with the wall for1.19 s. Ignore friction and wind resistance. Find the average force she exerts on the wall (which has the same magnitude, but opposite direction, as the force that the wall applies to her). Note that this force has direction, which you should indicate with the signof your answer.

Reference no: EM13565746

Questions Cloud

Find its focal length using matrix methods : A symmetric bi-covex lens has radii of curvature R and athickness of d. Find its focal length using matrix methods
Explain the observed specific rotation of the mixture : If a pure R isomer has a specific rotation of -139 degrees, and a sample contains 85% of the R isomer and 15% of its enantiomer, what is the observed specific rotation of the mixture
What is the threshold frequency : When light of wavelength 350 nm is incident on a metalsurface, the stopping potential of the photoelectrons is 0.500 eV. What is the threshold frequency
Define glyceraldehyde is present as the r enantiomer : The specific rotation of (R)-(+)-glyceraldehyde is +8.7. If the observed specific rotation of a mixture of (R)-glyceraldehyde and (S)-glyceraldehyde is +3.2, what percent of glyceraldehyde is present as the R enantiomer
Skater is standing at rest in front of a wall : A 47.3-kg skater is standing at rest in front of a wall. Bypushing against the wall she propels herself backward with avelocity of -2.41 m/s. Her hands are in contact with the wall for1.19 s. Ignore friction and wind resistance.
State resulting solution is analyzed in a sampling container : What observed rotation is expected when 1.26M solution of (R)-2-butanol is mixed with an equal volume of a 0.630 M solution of racemic 2-butanol, and the resulting solution is analyzed in a sampling container that is 1 dm long
Estimate what is the average acceleration of the car : A poorly tuned Yugo can accelerate from rest to a speedof 28 m/s in 20 s. What is the average acceleration of the car
Drawing shows a collision between two puckson : The drawing shows a collision between two puckson an air-hockey table. Puck A has a mass of 0.0190 kg and ismoving along the x axis with a velocity of +4.63 m/s. It makes acollision with puck B, which has a mass of 0.0380 kg and isinitially at res..
The sulphur provide some key features of the periodic table : Using the elements sodium, potassium, calcium, magnesium, carbon, oxygen, nitrogen, fluorine, chlorine, iron, hydrogen and sulphur, provide some key features of the periodic table such as: How they are organised in groups, periods and blocks

Reviews

Write a Review

Physics Questions & Answers

  Determine the recoil speed of the nucleus

The carbon isotope 14-C is used for carbon dating of archeological artifacts. What is the recoil speed of the nucleus

  What is the brewster angle

When red light in a vacuum is incident at the Brewster angle on a certain type of glass, the angle of refraction is 29.2°. What is the Brewster angle

  Determine the velocity of each object after the collision

A 10.0 g object moving to the right at 22.0 cm/s makes an elastic head-on collision with a 15.0 g object moving in the opposite direction at 34.0 cm/s

  Climate change impacts are measured by global warming

Climate change impacts are measured by Global Warming Potential (GWP), which is measured in units of carbon dioxide (CO2) equivalents, or CO2e. The daily GWP for a manufacturing plant that emits 1 ton of N2O, 3 tons of CH4 and 5 tons of CO2 per day i..

  Evaluate the final kinetic energy of the box

A 4 kg box is raised from rest adistance of 6 m by a vertical force of110 N. Find the final kinetic energy of the box

  Find the minimum instantaneous power dissipated in resistor

A resistor with R = 1.5 k? is connected to an AC generator that operates at 60 Hz with an amplitude of 49 V. (a) Find the amplitude of the current through the resistor. A

  What is the charge of the dust particle

A small piece of dust of mass m = 1.2 g travels horizontally through an electric air cleaner in which the electric field is 472 N/C, What is the charge of the dust particle

  Find the total distance traveled and the average speed

During 5 successive 0.93 min intervals, a runner moves at the following constant speeds: 0.424 km/min, 0.224 km/min, 0.160 km/min, 0.160 km/min

  What gauge pressure must the pump provide

Water is being pumped through a horizontal pipe that is 37.8 m long and 14.5 cm in diameter. what gauge pressure must the pump provide to give the same volume flow rate as for the first pipe

  At what velocity is the net force on the object twice

A 10.0-kg object experiences a drag force due to air resistance. At what velocity (magnitude and direction) is the net force on the object twice its weight

  What is the maximum speed of the object

A 1.00 kg object is attached to a horizontal spring. The spring is initially stretched by 0.200 m, What is the maximum speed of the object

  What is the diameter of the pathfollowed by alpha particle

An alpha particle (a He nucleus, containing two protons and two neutrons, What is the diameter of the path followed by this alpha particle

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