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A 6.00 kg bowling ball is rolling at 9.00 m/s. It collides with a 1.50 kg bowling pin at rest. After the collision the pin moves forward at 14.0 m/s. What is the velocity of the ball after the colli
You throw a .4 kg ball against a brick wall, it hits the wall moving left at 30 m/s and rebounds to the right at 20 m/s. What is the impulse delivered by the wall? If it touches the wall for .1s, wh
On a part-time job, you are asked to bring a cylindrical iron rod of density 7800Kg/m^3 , length 79.0 cm and diameter 2.80cm from a storage room to a machinist. Calculate the weight of the rod, w
A 2.00-mol sample of a diatomic ideal gas expands slowly and adiabatically from a pressure of 5.02 atm and a volume of 12.8 L to a final volume of 29.0 L. (a) What is the final pressure of the gas?
Starting from its nest, an eagle flies at constant speed for 3.2 min due east, then 4.6 min due north. From there the eagle flies directly to its nest at the same speed. How long is the eagle in th
A 0.6-kg ball is fastened to a spring with a spring constant of 86 N/m and is oscillating horizontally with an amplitude of 0.2 m. What is the maximum potential energy that is stored in the spring d
An object is thrown from the top of a 45m building with an initial velocity of 20 m/s straight upwards. The ball misses the building on the way down. Using energy considerations. What is the max hig
The speed of 3oz tennis ball is changed from 60 ft/s in one direction to 80ft/s in the opposite one as a racket hits it. Calculate the impulse. If the contact time is 0.005 sec, what is the average
Two identical ships, moving at right angles to each other,collide and stick together. One has an initial velocity of v in the x direction and the other has a velocity of 2v in the y-direction. What
Your car's fan belt turns a pulley at 3.00 rev/s . When you step on the gas for 1.25s , the rate increases steadily to 5.60 rev/s . What's the pulley's angular acceleration? And Through what angle d
A converging lens (f = 14.7 cm) is located 24.1 cm to the left of a diverging lens (f = -6.64 cm). A postage stamp is placed 27.1 cm to the left of the converging lens. (a) Locate the final image of
What is the net flux of electric field Fe emerging from one of the triangular faces of the pyramid? Express your answer in terms of Q and e0.
A solid sphere is released from rest on an incline. When it reaches the bottom, what fraction of its total kinetic energy is translational? And when it reaches the bottom, what fraction of its total
Find the magnitude of the net magnetic field at P, midway between the coils.
Imagine that the only visible photons that an electron in a box of unknown length emits have wavelengths of 689nm and 413nm, Identify the transitions and find the length of the box.
A child is sitting on the outer edge of a merry-go-round that is 18 m in diameter. If the merry-go-round makes 4.9 rev/min, what is the velocity of the child in m/s?
When the mass is halfway between its equilibrium position and the endpoint, its speed is measured to be 38.8 cm/s. Calculate the mass of the block.
Question: When water freezes, it expands about 8.73%. What would be the pressure increase inside your automobile engine block if the water in it froze? The bulk modulus of ice is 2 × 109 N/m2
A quarter (diameter = 2.40 cm) is held at arm's length (64.0 cm). The sun has a diameter of 1.39 x 10^9 m and is 1.50 x 10^11 m from the earth. What is the ratio of the angular size of the quarter t
The values of the resistance, capacitive reactance, and inductive reactance are, respectively, R = 30.0 Ω, XC = 50.0 Ω, and XL = 90.0 Ω. What is the rms current in the circuit?
A C=35 pF parallel plate cApacitor has plates of area A=402cm^2. What is the electric field between its plates when it is connected across a potential difference of V=14.5 Volts?
The refractive indices of materials A and B have a ratio of nA/nB = 1.79. The speed of light in material A is 1.07 x 10^8 m/s. What is the speed of light in material B?
The two balls swing apart until each makes an angle of 21 degrees with the vertical. 1) What is the charge on each ball? 2) What is the tension on the string?
How do we calculate or determine the distances to stars? What units do we use and what are the limitations (if any) of the method used for such calculations?
A balloon is directly west of two observing stations 10 km apart. The angles of elevation of the balloon from the two stations are 17 degrees and 78 degrees. How high is the balloon?