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A garden plot must have a central planting area of length 13 m and width 8 m. There is to be a sidewalk around its edge of width w. what is the sidewalk width
An ideal gas initially at 20°C and 199 kPa has a volume of 3.40 L. It undergoes a quasi-static, Find the heat added to the gas during the expansion
A diatomic gas does 320 J of work and also absorbs 600 cal of heat. What is the change in internal energy of the gas
A 210 g piece of ice at 0°C is placed in 410 g of water at 22°C. The system is in a container of negligible heat capacity and is insulated from its surroundings. How much of the ice melts
A person scuffing her feet on a wool rug on a dry day accumulates a net charge of -42 µC. by how much does her mass increase
Suppose you have an electric hot water heater for your house which is an aluminum cylinder which has a 0.46 m radius and is 2 m high. How much energy is lost through the walls of the hot water heater
It is possible to make a usable thermometer out of water. Suppose you have a 500 mL glass bottle which is filled with water at 12 C. how far up the straw does the water level move
A physics demo launches a ball horizontally while dropping a second ball vertically at exactly the same time. Which ball hits the ground first? and why
A rectangle has an area of 28.14 cm2. When both the length and width of the rectangle are increased by 1.80 cm, Calculate the length of the longer of the two sides of the initial rectangle
A small drop of water measuring 0.6 mm in diameter, how many extra electrons are on the drop of water
A spring with an unstrained length of 0.070 m and a spring constant of 2.4 N/m hangs vertically downward from the ceiling. What is the magnitude of the external electric field
A small piece of dust (mass=1.8 \(\mu\)\ g) travels horizontally through an electric air cleaner in which the electric field is 524 N/C. What is the charge on the dust particle
An electron is accelerated by a constant electric field of magnitude 325 N/C. Find the acceleration of the electron
Two small metallic spheres, each of mass 0.20 g, are suspended as pendulums by light strings from a common point, what is the magnitude of the charge on each sphere
Two electric dipoles with charges +Q, where Q = 5 mC, Find the magnitude of the electric force between the two dipoles.
You are given a container with 56 g of hydrogen atoms. What is the total charge on the electrons in the container
An electric eld of magnitude 3.5 kN/C is applied along the x axis. Calculate the electric flux through a rectangular plane 0.35 m wide and 0.7 m
Flight to Mars. To send a satellite from Earth to Mars, a rocket must accelerate the satellite until it is in the correct elliptical orbit around the sun. What is the semimajor axis of the satellite
A 5.0g- lead bullet is fired into a fence post. The initial speed of the bullet is 240m/s, How much does the bullets temperature increase
Four charged particles rest at the corners of a square of side a = 0.30 m. Determine the electric field at the position of particle 3 as well as the electric force on particle 3
A glass window 0.45cm thick measures 80cm by 37cm. To compare the relative efficiency of air and glass as insulators, calculate the heat flows through this window
Four charged particles rest at the corners of a square of side a = 0.30 m. Charges 1 through 4 are 10, 20, 30 and 40 µC, Determine the electric field at the center of the square
A mass of 1.2 kg is attached to a single spring and set into oscillation. The period of the spring oscillation is measured to be 4.80 seconds. What is the phase constant for the oscillation
A block of mass 1.60 kg is connected to a spring of spring constant 149 N/m which is then set into oscillation on a surface with a small coefficient of kinetic friction. find the total energy was lo