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An ideal gas at 1 atmosphere and 200 K has a volume of 400 cm^3. The gas is warmed to 300 K and pressure increased to 2 atm. What is the new volume of the gas?
A river of width 34 m flows in a straight line (the x direction) with a speed of 0.24 m/s. A boat is rowed such that it travels directly across the river (along y). If the boat takes exactly 2.0 min
A 20 micro F capacitor is fully charged across a 12V battery. The capacitor is then disconnected from the battery and connected across an initially uncharged capacitor with capacitance C. The result
The car's position relative to the base of the cliff when the car lands in the ocean.
(a) After the collision what direction and what direction will the bowling ball move and how fast? (b) After the collision what direction and what direction will the aluminum ball move and how fast?
A steel rod is used to transfer heat from a chamber at 300 K to a chamber at 250 K. Which of the following changes in the setup will result in the greatest increase in the rate of heat transfer?
What is the velocity (magnitude and direction counterclockwise from the +x-axis, which is the initial horizontal direction in which the rock was thrown) of the rock just before it hits the ground?
A person wears a hearing aid that uniformly increases the intensity level of all audible frequencies of sound by 30.0 dB. The hearing aid picks up sound having a frequency of 250Hz at an intensity o
a) Draw the situation - include geometric dimensions and indicate the sign of charge on each plate. b) Which plate will the electrons hit?
A uniform electric field of 8 V/m exists between the plates of a parallel plate capacitor. How much work is required to move a +20 µC point charge from the negative plate to the positive plate
In a pacemaker used by a heart patient, a capacitor with a capacitance of 29-µF is charged to 2.0 V and then discharged through the heart every 0.87 s. What is the average discharge current?
After flying for 15 min in a wind blowing 42 km/h at an angle of 34° south of east, an airplane pilot is over a town that is 44 km due north of the starting point. What is the speed of the airpl
Assuming that the particle's velocity is perpendicular to the magnetic field, find the radius of the circular path on which the particle would move if it were each of the following.
If, using a Cartesian coordinate system with origin O at the top of the hill, the hill;s profile is described by the function y = -(.003m^-1)x^2, where x and y are in meters, determine the minimum s
Suppose that protons are fired towards the large flat side of a charged conducting plate. Initial speed of the protons is v0, and initial distance d.
The vehicle then slows at a constant rate of 1.2 m/s2 until it stops. (a) How much time elapses from start to stop? (b) How far does the vehicle move from start to stop?
1. A plane accelerates from rest at a constant rate of 5.00 along a runway that is 1800 long. Assume that the plane reaches the required takeoff velocity at the end of the runway. What is the time
One end is pivoted on the axis, and the other end is connected to the axis by a string that is perpendicular to the axis. What is the tension in the string, and what is the force that the pivot appl
An artillery shell is fired with an initial velocity of 300 m/s at 52.5° above the horizontal. To clear an avalanche, it explodes on a mountainside 45.5 s after firing. What are the x and y coor
What is the magnitude of the frictional force (in newtons) on the block if the block is at rest and the surface is horizontal?
A coin and a ring, each with the same mass, roll down an incline starting at the same time. Which one will reach the bottom first?
If he shot a dart at an antelope at rest 50 m away, and the antelope instantly began to accelerate at a constant rate away from the dart, running out of range of the dart just in time: a) Find the m
The three capacitors C=3.0*10^-6 F in series are connected across a 30-V battery. a) find the charge on each capacitor
A series combination of a 14 k resistor and an unknown capacitor is connected to a 11 V battery. One second after the circuit is completed, the voltage across the capacitor is 9 V. Determine the cap
A runner travels 100 m in 10.4 s. Assume that it takes him 1.40 s to reach his top speed, which is then maintained for the rest of the race. Find the following values: a) Average acceleration during