Start Discovering Solved Questions and Your Course Assignments
TextBooks Included
Active Tutors
Asked Questions
Answered Questions
A rocket of total mass 3370 is traveling in outer space with a velocity of 123 . To alter its course by 21.0, its rockets can be fired briefly in a direction perpendicular to its original motion. I
The position of a simple harmonic oscillator is given by x(t)=(0.5m)cos((pi/3)t) where t is in seconds. What is the maximum velocity of this oscillator?
The other end of the string after it passes over a pulley that is 2.00 m from the wall. The string has a mass per unit length of 3.41 mg/m. What is the fundamental frequency of this string?
In a game of pool, a ball of mass 0.130 kg is struck with an average force of 44.9 N in 11.5 ms. Find the speed of the ball after it was struck.
A parallel-plate capacitor with circular plates of radius 0.11 m is being discharged. A circular loop of radius 0.25 m is concentric with the capacitor and halfway between the plates. The displacem
A ten-watt heater is used to heat a monatomic ideal gas at a constant pressure of 2.50 X 10^5 Pa. During the process, the 1.00 X 10^-3 m^3 volume of the gas increases by 20.0%. How long was the hea
A hollow ball is rolling along a horizontal surface at 2.5 when it encounters an upward incline. If it rolls without slipping what is the maximum height it will reach?
The water remains a liquid, which expands by a small amount as it is heated. Determine the ratio of the work done by the water to the heat absorbed by the water.
A point source of light is 100.0 cm below the surface of a body of water. Find the diameter of the circle at the surface through which light emerges from the water.
A 81 kg solid sphere with a 31 cm radius is suspended by a vertical wire. A torque of 0.15 N?m is required to rotate the sphere through an angle of 0.90 rad and then maintain that orientation. What
An electron and a positron each have a mass of 9.11 x 10-31 kg. They collide and both vanish, with only electromagnetic radiation appearing after the collision. If each particle is moving at a spee
A 675 kg car stopped at an intersection is rear ended by a2725 kg truck moving with a speed of 20.0m/s. If the collision is completely inelastic so tht the truck and car stick together after the co
When a potential difference of 140 V is applied to the plates of a parallel-plate capacitor, the plates carry a surface charge density of 27.0 nC/cm2. What is the spacing between the plates?
At 18°C, a rod is exactly 20.05 cm long on a steel ruler. What is the coefficient of linear expansion for the material of which the rod is made?
When a 4.90 kg object is placed on top of a vertical spring, the spring compresses a distance of 2.43 cm. What is the force constant of the spring?
A rifle is aimed horizontally at a target 49 m away. The bullet hits the target 2.5 cm below the aim point. What was the bullet's flight time? and What was the bullet's speed as it left the barrel?
Suppose this dipole is placed in a uniform electric field with strength 7.4*10^5 N/C. What is the maximum possible torque on the dipole?
Three polarizing sheets are placed in a stack with the polarizing directions of the first and third perpendicular to each other. What angle should the polarizing direction of the middle sheet make
A 0.10 g honeybee acquires a charge of +23pC while flying. What electric field strength and direction would allow the bee to hang suspended in the air?
3.00×10^23 nitrogen molecules collide with a 20.0 cm^2 wall each second. Assume that the molecules all travel with a speed of 380 m/s and strike the wall head on. What is the pressure on the w
A 1 kg block rests against one end of a horizontal spring which is compressed by 10 $cm$. When the spring is released, the spring forces the block to slide across a table top. It stops 41 from wher
A marble is placed at the bottom of an empty culinder. when 35 ml of water is added to the cylinder the water level reaches the 60ml mark. If the density of the marble is 1000kg/m3 what is the mass
Starting at a point 5 cm to the left of the sheet , you travel through the sheet to a final resting 14 cm to the right of the sheet. what is the change in potential (size and sign) in doing this? Dr
In the polarizer/analyzer combination in the figure below, 53.6% of the light intensity falling on the analyzer is absorbed. Determine the angle between the transmission axes of the polarizer and t
A 21.0-kg sled is being pulled across a horizontal surface at a constant velocity. The pulling force has a magnitude of 80.5 N and is directed at an angle of 30.0° above the horizontal. Determin