What is the density of the rock

Assignment Help Physics
Reference no: EM13549125

A rock is suspended from a scale reads 20.0 N. A beaker of water ( having a density of 1000 kg/m^3) is raised up so the rock is totally submerged in the water. The scale now reads 12.5 N. What is the density of the rock?

Reference no: EM13549125

Questions Cloud

Find the magnitude and direction of final velocity of wreck : Two vehicles approach a right angle intersection and then collide. find the magnitude and direction of the final velocity of the wreck
A satellite moves in a circular orbit around the earth : A satellite moves in a circular orbit around the Earth at a speed of 6.1 km/s. Determine the satellite’s altitude above the surface of the Earth. Assume the Earth is a homogeneous sphere of radius 6370 km and mass 5.98 × 10^24 kg.
Find the magnitude of the gravitational force : Find the magnitude of the gravitational force a 63.9 kg person would experience while standing on the surface of Earth with a mass of 5.98 × 10^24 kg and a radius of 6.37 × 10^6 m.
Determine at what frequency does jill need to pump her legs : Jill ( 60kg) is swinging on a rope swing that is 4m long, at what frequency does Jill need to pump her legs to get the swing going higher
What is the density of the rock : A rock is suspended from a scale reads 20.0 N. A beaker of water ( having a density of 1000 kg/m^3) is raised up so the rock is totally submerged in the water. The scale now reads 12.5 N. What is the density of the rock?
A piano string with mass density : A piano string with mass density 7700 kg/m3 and diameter 0.3 mm is stretched over a pulley such that its vibrating length is 45 cm. A hanging mass of 35 kg is attached to the end of the string that passes over the pulley.
What did newton discover about gravity : What did Newton discover about gravity? 1. All objects near the Earth free fall with the same acceleration. 2. Any force on a planet would be directed along its path. 3. Gravity only happens on Earth.
What is the tension in the wire-a ladder leans against : A ladder leans against a wall making a 55.0° angle to the floor. The ladder is 4.50 m long, and weighs 415 N. The wall is frictionless and so is the floor. A horizontal wire is attached to the base of the ladder and attached to the wall.
One kilogram of dry air at stp conditions : One kilogram of dry air at STP conditions is exposed to 1.00 R of X-rays. One roentgen is defined by Equation 32.1 in Section 32.1. An equivalent definition can be based on the fact that an exposure of one roentgen deposits 8.30 x 10-3 J of energy..

Reviews

Write a Review

Physics Questions & Answers

  Find the net change in the internal energy of gas in piston

An ideal gas in a piston is placed in a refrigerator, which removes 686 J of energy from the gas via cooling. find the net change in the internal energy of the gas in the piston

  Calculate the bond length of n2 molecule

The first two anti-stokes lines in the rotational Raman spectrum of N2 occur at 29709.1 and 29717.1cm^-1. Calculate the bond length of N2 molecule.

  Find the magnitude and direction of the resultant force

Two workers are trying to move a heavy crate. One pushes on the crate with a force , which has a magnitude of 485 newtons and is directed due west.

  Find the value of temperature of coefficient of resistivity

A certain material is in a room at 27°C. If the absolute temperature (K) of the material is tripled, What is the value for α , the temperature coefficient of resistivity

  Is the image in part a in front of or behind the second lens

A lens with a focal length of 25 is placed 40 in front of a lens with a focal length of 5.0. How far from the second lens is the final image of an object infinitely far from the first lens? Is the image in part a in front of or behind the second l..

  What is the final charge in each ball

Two identical brass balls mounted on wooded posts initally have different amounts of charge, one +3uC and the other +15uC. What is the final charge in each ball

  Find the magnitude of the net force on the loop

A rectangular loop of wire with length L = 29.5 cm and width W = 16.7 cm carries a current I1 = 1.92 A. What is the magnitude of the net force on the loop

  Determine what is the direction of the applied force

What force must be applied to 5kg object to move it downward with acceleration 1 m/s^2. What is the direction of the applied force.

  Estimate the wavelength produced by the j

The energies associated with molecular rotation and vibration are quantized and photons can be emitted or absorbed by molecules making transitions from one rotational or vibrational state to another.

  A steam catapult launches a jet aircraft

A steam catapult launches a jet aircraft from the aircraft carrier John C. Stennis, giving it a speed of 175 mi/h in 2.50 s. (a) Find the average acceleration of the plane. Correct: Your answer is correct. m/s2 (b) Assuming the acceleration is consta..

  What power must a motor have to perform this task

A projectile is launched perpendicularly upward from a planet of mass M; and radius R; its initial speed is twice the escape speed. Derive an expression for its speed as a function of the distance from the center of the planet.

  Find the magnitude of total displacement of the object

Find the magnitude of total displacement of the object

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