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If it takes you about 2 minutes to fill your 12 gal (or 0.48 m3) gas tank. Estimate the velocity of the gas as it leaves the nozzle
A car accelerates uniformly from rest and covers a distance of 71 m in 5.6 s. If the diameter of a tire is 42 cm, Find total number of rotations of the wheel
Two identical small insulating balls are suspended by separate 0.22-m threads that are attached to a common point on the ceiling. Determine the tension in the threads
You are eating lunch at your favorite cafe and your friend calls and says he wants to meet you. He is calling from a city 175 miles away and wants to meet you somewhere between the two locations. ho
What is the launch speed of a projectile that rises vertically above the Earth to an altitude equal to four times the Earth's radius before coming to rest momentarily
A small object begins a free-fall from a height of H = 82.5 m at t0 = 0 s. At what height from the ground will the two objects first meet
A vertical wall (5.4 m 2.4 m) in a house faces due east. A uniform electric field has a magnitude of 164 N/C. What is the electric flux through the wall
a chartered airplane flies 100 km east, then 350 km north west, and then 150 km at 30 degrees west of south. determine the direction of the last leg of the journey
Tension is maintained in a string as in the figure below. What is the mass per unit length of the string
To determine the specific heat of an object, a student heats it to 100 in boiling water. She then places the 68.5 object in a 196 aluminum calorimeter containing 135 of water. what is the specific h
A 0.840-kg block oscillates on the end of a spring whose spring constant is k= 42.0 N/m. What is the fractional decrease in amplitude per cycle
Standard mathematical constants and symbols (e.g. pi), you may only use the symbols shown in the figure and question description - Which of the following plots correctly represents the electric field
A 65-? loudspeaker, a 8.0-? loudspeaker, and a 2.1-? loudspeaker are connected in parallel across the terminals of an amplifier. Determine the equivalent resistance of the three speakers
An MP3 player operates with a voltage of 3.7 V, and is using 0.28 W of power. Find the current being supplied by the player's battery
To find the height of an overhead power line, you throw a ball straight upward. The ball passes the line on the way up after 0.65, What is the height of the power line
A hot-air balloon has just lifted off and is rising at the constant rate of 2.2 m/s. how high is she when the camera reaches her
A circus performer stretches a tightrope between two towers. He strikes one end of the rope and sends a wave along it toward the other tower. find the tension in the tightrope
A uniform electric field of magnitude 395 N/C pointing in the positive x-direction acts on an electron, which is initially at rest. What is the work done by the field on the electron
The nucleus of 8Be, which consists of 4 protons and 4 neutrons, is very unstable and spontaneously breaks into two alpha particles, What is the force between the two alpha particles
A particular fish tank filled with fresh water (n=1.33) has a coral reef sticker stuck to an exterior wall(outside of the tank). What is the index of refraction of the tank's walls
A light wave has a 670{\rm nm} wavelength in air. Its wavelength in a transparent solid is 420{\rm nm}. What is the light's frequency in the solid
A person walks first at a constant speed of 5 m/s along a straight line from point A to point B, How much distance does the person cover on her trip
A torsion pendulum is constructed of a copper rod of radius 3 mm and length 50 cm. what is the period of oscillation
3.00×104 of 300 C steam at a pressure of 20.0 is cooled until it condenses. What is the volume of the liquid water
A 9.0×10-24-kg particle is vibrating with simple harmonic motion with a period of 1.9×10-5 s, Find the maximum displacement of the particle