Find the weight of the person in newtons.

Assignment Help Physics
Reference no: EM13539333

To determine the center of mass of her body, a student lies on aplank of mass m=10 kg. The plank is supported by two scales at itsends. The distance between the scales is 2.5 meters. The left scalereads 339 N and the right reads 171 N.

a) Find the weight of the person in Newtons.
b) Find the distance from the student's head to her center ofmass.

Reference no: EM13539333

Questions Cloud

Calculate the molar entropy changes of the two gas streams : An ideal gas, Cp = (7/2)R, is heated in a steady-flow heat exchanger from 70°C to 190°C by another stream of the same ideal gas which enters at 320°C. The flow rates of the two streams are the same, and heat losses from the exchanger are negligibl..
What are the power developed and the heat rejected : A Carnot engine receives 250 kJ s-1 of heat from a heat-source reservoir at 525?C and rejects heat to a heat-sink reservoir at 50?C. What are the power developed and the heat rejected?
Liquid isobutane is throttled through a valve : Liquid isobutane is throttled through a valve from an initial state of 360 K and 4000 kPa to a final pressure of 2000 kPa. Estimate the temperature change and the entropy change of the isobutane. The specific heat of liquid isobutane at 360 K is 2.78..
Estimate the change in enthalpy and entropy : Estimate the change in enthalpy and entropy when liquid ammonia at 270oK is compressed from its saturation pressure of 328 kPa to1,200 kPa. For saturated liquid ammonia at 270oK, Vl=1.551x10-3 m3kg-1, and \(\beta=2.095x10-3K-1.\)
Find the weight of the person in newtons. : To determine the center of mass of her body, a student lies on aplank of mass m=10 kg. The plank is supported by two scales at itsends. The distance between the scales is 2.5 meters. The left scalereads 339 N and the right reads 171 N.
Wave motion in the text by wolfson : A wave in which the disturbance is perpendicular to the direction of travel of the wave is a... Two waves of equal amplitudes traveling in opposite directions pass through each other. After they have passed through each other, their amplitudes have..
What is the potential difference across the headlight bulbs : An automobile battery has an emf of 12.60 V and an internal resistance of 0.084 0 ?. The headlights together have an equivalent resistance of 5.800 ? (assumed constant).
Necessary to keep the car traveling at constant speed : A 31000- kg railroad car with an open top rolls along a straight track with a speed of 4.91 km/h. It passes under a water fall that pours water straight into the car at a rate of 600 kg/s How much force is necessary to keep the car traveling at const..
What frictional force was applied by the brake pad : A uniform 2.45- kg spinning disk with a radius of 0.253 m is brought to rest by a brake-pad pressed against the side 0.200 m from the rotation axis. The wheel is brought to rest from an angular velocity of 18.7 rad/s in a time of 21.1 s. What frictio..

Reviews

Write a Review

Physics Questions & Answers

  How many moles of the substance are present

A certain substance has a mass per mole of 36 g/mol. When 319 J is added as heat to a 35.0 g sample of this material, How many moles of the substance are present

  What is the half-life of the material

In 2.8 days the number of radioactive nuclei decreases to one-eighth the number present initially

  Compute the magnitude of the impulse on him from the snow

In February 1955, a paratrooper fell 370 m from an airplane without being able to open his chute but happened to land in snow, compute the magnitude of the impulse on him from the snow?

  What is the vertical component of the force

Since you are pulling up a little on the crate, the floor doesn't have to support as much weight. When you are pulling up on the rope as described above, what is the upward force that the floor exerts on the crate.

  How hard are they pulling on one another

On an ice rink, two skaters of equal mass grab hands and spin in a mutual circle once every 2.6s. how hard are they pulling on one another

  Find the magnitude of the gravitational force

The Earth (5.98 x 10^24 kg) and the Moon (7.35 x 10^22) kg are separated by an average distance of 3.84 x 10^8 m

  Find the magnitude of the last leg of the journey

A chartered airplane flies 100 km east, then 350 km northwest, and then 150 km at 30° west of south. Find the magnitude of the last leg of the journey

  Find the equivalent capacitance of the combination

Two capacitors, C1 = 4.00 µF and C2 = 13.0 µF, are connected in parallel, and the resulting combination is connected to a 9.00-V battery. Find the equivalent capacitance of the combination

  Determine the number of moles of gas

A rigid tank contains 1.20 moles of an ideal gas. Determine the number of moles of gas that must be with Illustrate from the tank to lower the pressure of the gas from 24.2 atm to 5.30 atm. suppose the volume of the tank and the temperature of the..

  Obtain the speed block has as it passes through equilibrium

A block of mass m = 2.00 kg is attached to a spring of force constant k = 415 N/m, Find the speed the block has as it passes through equilibrium

  Determine the final speed of the rocket

Consider a rocket which has two combustion rates, ?1 = 4 kg/s and ?2 = 8 kg/s. The relative speed of the exhaust gas is 90 m/s in either case. Determine the final speed of the rocket

  Estimate the total energy stored in this field

Assuming the Earth's magnetic field averages about 0.50*10^-4 T near the surface of the Earth, estimate the total energy stored in this field

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