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A converging lens of focal length 7.92 cm is 24.1 cm to the left of a diverging lens of focal length -5.97 cm. A coin is placed 11.1 cm to the left of the converging lens. Calculate the location of
Three uniform thin rods, each of length L = 39 cm, form an inverted U. The vertical rods each have a mass of 15 g; the horizontal rod has a mass of 32 g. What are (a) the x coordinate and (b) the y
A Spring is compressed by 0.0800m and is used to launch an object horizontally with a speed of 2.40m/s. If the object were attached to the spring, at what angular frequency (in rad/s) would it osci
Not wishing to get his feet wet, a student walks around the pool and measures its circumference to be 15.0 m. Next, the student stands at the edge of the pool and uses a protractor to gauge the angl
An engine is being used to raise a 89-kg crate vertically upward. If the power output of the engine is 1620 W, how long does it take the engine to lift the crate a vertical distance of 18.7 m? Frict
Find the tension in the rope required to make him follow his circular path, assuming he starts from rest when the rope is horizontal?
If U = 3.00 J when the particle is 2.00 m from the origin, find the numerical value of the y-component of the force on this particle when it is at the point (-1.00 m, 2.00 m, 3.00 m).
Two balloons that have the same weight and volume are filled with equal amounts of helium. One is rigid and the other is free to expand as the pressure outside decreases. When released, which will
Bonnie and Clyde are sliding 460 {rm kg} bank safe across the floor to their getaway car. The safe slides with a constant speed if Clyde pushes from behind with 395 {rm N} of force while Bonnie pul
A 200-m-wide river flows due east at a uniform speed of 2.0 m/s. A boat with a speed of 8.0 m/s relative to the water leaves the south bank pointed in a direction 30 degrees west of north. What are
A 2.4 kg toy locomotive is pulling a 1.6 kg caboose. The frictional force of the track on the caboose is 0.54 N backward along the track. If the train is accelerating forward at 3 m/s2, what is the
A 20 mu F capacitor initially charged to 20 mu C is discharged through a 1.7 k Omega resistor. How long does it take to reduce the capacitor's charge to 5.0 mu C?
The cockroach's speed (relative to the ground) is 2.14 m/s, and the lazy Susan turns clockwise with angular velocity ω0 = 2.32 rad/s. The cockroach finds a bread crumb on the rim and, of cours
At the end of the firing period, the craft has velocity components of vx = 3810 m/s and vy = 4406 m/s. Find the magnitude and direction of the initial velocity. Express the direction as an angle wit
A wheel with a radius of .3m accelerates with a constant angular acceleration of 5.5 rad/s*. If the initial angular velocity is 6 rad/s, how many revolutions does a wheel make in 5seconds?
Starting from rest a boat increases its speed to 4.00 m/s with constant acceleration. What is the boats average speed?
Describe the construction of a electromagnetic velocity sensor and explain its working. In a bike speedometer the wheel diameter is 80cm what is the frequency of velocity sensor, which gives 1 pulse
A 2-kg metal ball moving at a speed of 3m/s strikes a 1-kg wooden ball that is at rest. After collision, the speed of the metal ball is 1m/s. Assuming momentum is conserved, what is the speed of th
A vertical electric field of magnitude 2.00 ×10^4N/C exists above the Earth's surface on a day when a thunderstorm is brewing .A car with a rectangular size of 6.00m by 3.00m is traveling alon
The lowest lying excited state of sodium is 2.104 eV above the ground state. Given that Planck's constant is 4.135x10 (to the negative 15 pwr.) eV/Hz, what color of light do you expect sodium atoms
An airplane must reach a speed of 199 mi/h to take off. If the runway is 470 m long, what is the minimum value of the acceleration that will allow the airplane to take off successfully?
The inverted image of a light bulb is formed on a screen located 9,00 metres from a spherical mirror. The image is 4 times larger than the light bulb. Determine the object distance and type of mirr
A person is riding a bicycle at a constant speed of 36km/hour. The radius of the wheel is 50cm. a. Determine the angular speed of the bicycle.
If a curve with a radius of 85m is properly banked for a car traveling 68 km/h, what must be the coefficient of static friction for a car not to skid when traveling at 93 km/h?
A 1.80 mol sample of helium gas initially at 300 K and 0.400 atm is compressed isothermally to 1.20 atm. Note that the helium behaves as an ideal gas. What is the final volume of the gas?