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The ramp is at an angle of 31.5 degrees with the horizontal. The package has a mass of 9.25 kg. the coefficient of static friction between the ramp and the package is .385. (keep in mind that the sp
A point particle with charge q = 97 µC is placed at a corner of a cube of edge a = 11 cm. What is the flux through (a) each cube face forming that corner and (b) each of the other cube faces?
A spacecraft is in orbit around a planet. The radius of the orbit is 3.0 times the radius of the planet (which is R = 71510 km). The gravitational field at the surface of the planet is 22 N/kg. What
A gold nucleus has a radius of 7.3 x10^-15 m and a charge of +79e. Through what voltage must an alpha-particle, with its charge of +2e, be accelerated so that it has just enough energy to reach a di
A flat surface having an area of 3.6 m^2 is rotated in a uniform electric field of magnitude E = 6.3 x 10^5 N/C. Determine the electric flux through this area in the following situations: (a) when
Suppose 2.00 g of hydrogen is separated into electrons and protons. Suppose also the protons are placed at the earth's North Pole and the electrons are placed at the South Pole. What is the resultin
A spark occurs at the tip of a metal needle if the electric field strength exceeds 5.00×106 N/C , the field strength at which air breaks down. what is the minimum surface charge density for prod
A 5.0-liter gas tank holds 1.4 moles of helium (monatomic) and 0.7 moles of oxygen (diatomic), at a temperature of 260 K. The atomic masses of helium and oxygen are 4.0 g/mol and 16.0 g/mol, respect
What is the initial magnitude of the acceleration of the alpha particles due to this force? Note that the mass of an alpha particle is 4.0026 u.
Assume that a drop of mercury is an isolated sphere. What is the capacitance of a drop that results when 10 drops each of radius R = 2.60 mm merge?
A parachutist relies on air resistance (mainly on her parachute) to decrease her downward velocity. She and her parachute have a mass of 55.5kg and air resistance exerts a total upward force of 650
When venturing forth on Planet X, you throw a 5.65kg rock upward at 13.4m/s and find that it returns to the same level 1.47s later What does the rock weigh on Planet X?
Assuming the refrigerator is reversible, at what rate must it consume electrical energy to maintain a constant 4 degree C interior?
A hockey puck with mass 0.160kg is at rest on the horizontal, frictionless surface of a rink. A player applies a force of 0.250N to the puck, parallel to the surface of the ice, and continues to ap
A 63.0kg skater moving initially at 2.40m/s on rough horizontal ice comes to rest uniformly in 3.41s due to friction from the ice. What force does friction exert on the skater?
You push on the chair with a force F = 38.0N that is directed at an angle of 40.0^\circ below the horizontal and the chair slides along the floor. use Newton's laws to calculate the normal force tha
A sleigh slides down a snowy incline 15° to the horizontal, with coefficient of kinetic friction µk = 0.21. (a) Find the acceleration of the sleigh as it slides down the incline. (b) If th
A marble is projected up along a 17 ° incline track at an initial speed of 2.1m/s and then coasts without friction. (a) How long does it take for the marble to come to rest momentarily? (
A 20-cm-long nichrome wire is connected across the terminals of a 1.5 V battery. a. What is the electric field inside the wire?
As a particle moves from the origin to (1i + 7j) m, it is acted upon by a force given by (2i + 6j) N. Calculate the work done by this force on the particle as it moves through the given displacement
The intrinsic magnetic dipole moment of the electron has magnitude 9.33 x 10-24 A ·m2. In other words, the electron acts as though it were a tiny current loop with NIA = 9.33 x 10-24 A ·
You have a concave spherical mirror with a 11.5-cm radius of curvature. You place an object on the mirror\'s axis, 17.7 cm in front of the mirror. How far is the object's image from the mirror?
You are given a spherical mirror and wish to determine its properties. You place an object on its axis, 39.30 cm in front of it, and discover that the mirror creates a virtual image located 13.70 cm
You place a 5.93-mm-high diamond on the axis of and 11.5 cm from a lens with focal length -5.45 cm. If it can be determined, is the diamond's image real or virtual? How high is the image (expressed
You place a 7.73-mm-high chocolate chip on the axis of and 12.7 cm from a lens with focal length 5.45 cm. If it can be determined, is the chocolate chip's image real or virtual? How high is the imag