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The number of atoms in each molecule is unknown. Measurements of the heat capacity at constant pressure are ~4.5R at high temperatures and low pressures. What is the number of atoms in each molecule
A jet airliner moving initially at 300 mi/h due east enters a region where the wind is blowing at 105 mi/h in a direction 28.0° north of east. What is the new velocity of the aircraft relative t
Calculate the magnitude and direction of the electric force F {using F=qE} acting on an ion of charge -3e if this particle were placed at the origin:
Suppose a 10 kHz signal with an amplitude of 1 volt is applied across a 0.25 * 10^-6 F resistor and a capacitor which are connected in series. What is the amplitude of the voltage drop across the ca
What is the tension in the rope that connects the boxes? what is the mass m of the second box?
calculate the molecular polarizability as a function of inverse temperture and plot it .from the slope of the curve, deduce a value for the peranent dipole moment of the H2O molecule (express the di
A satellite is in a circular orbit about the earth (ME = 5.98 x 1024 kg). The period of the satellite is 1.52 x 104 s. What is the speed at which the satellite travels?
At the top of the loop, the rider is upside down and moving, and the sensor reads 350 N. What is the speed of the rider at the top of the loop?
How many N how many degrees north of east? What is the force of the wind acting on the boat? How many N how many degrees N of E?
How close does the alpha particle get to the nucleus before turning around? Assume the gold nucleus remains stationary.
The ball starts from rest. (a) Through what distance does it move before its release? (b) What are the magnitude and direction of the force the pitcher exerts on the ball?
What is the magnitude of the magnetic field (in N/C) 8.00 cm from the central axis of the beam ?
At the local grocery store, you push a 15.0- shopping cart. You stop for a moment to add a bag of dog food to your cart. With a force of 12.0 , you now accelerate the cart from rest through a distan
A tuning fork vibrating at 575hz is held just over the top of the tube as the water is slowly drained from the bottom. At what water heights, measured from the bottom of the tube, will there be a st
A proton (mass: 1.67 × 10-27 kg) moves in a one-dimensional electrical potential (17 mV/m^2)x^2 . What is the frequency of oscillations of the proton?
A train is traveling up a 4.3 incline at a speed of 2.20 when the last car breaks free and begins to coast without friction. How long does it take for the last car to come to rest momentarily? How f
With what force should the second crewman pull so that the net force of the two crewmen is in the forward direction?
There is an oscillating simple pendulum slowing down. Assuming time starts when the pendulum is released, find an equation for the angle as a function of time. (Note: you must include damping for fu
A 2.00kg block hangs from a spring. A 300g body hung below the block stretches the spring 2.00cm farther. (a) What is the spring constant? (b) If the 300g body is removed and the block is set into
Calculate the magnitudes of (a) the force of friction on the bicycle from the road and (b) the net force on the bicycle from the road.
The density of air is 0.50 kg/m3 at 8.0 km and 0.73 kg/m3 at 4.0 km. Assume that the airplanes have the same effective cross-sectional area and drag coefficient C.
If the final speed of the sand bag is 0.34 m/s, what is the magnitude of the force with which they pushed?
A force of magnitude 7.50 pushes three boxes with masses m1= 1.30 kg, m2= 3.20kg and m3= 4.90 kg Find the magnitude of the contact force between boxes 1 and 2 and find the magnitude of the contact f
For a sample with a quench rate of 5.5 degrees C/sec, what kind of steel gives a Rockwell hardness of C25 at this cooling rate? Please show your work.
A 747 jetliner lands and begins to slow to a stop as it moves along the runway. If its mass is 3.41×105 , its speed is 29.1, and the net braking force is, what is its speed 6.51 later? How far h