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A marble is thrown horizontally with a speed of 12.3 m/s from the top of a building. When it strikes the ground, the marble has a velocity that makes an angle of 71 ° with the horizontal. From w
An airplane with a speed of 82.7 m/s is climbing upward at an angle of 31.8 ° with respect to the horizontal. When the plane's altitude is 871 m, the pilot releases a package. (a) Calculate the
On a distant planet, golf is just as popular as it is on earth. A golfer tees off and drives the ball 4.80 times as far as he would have on earth, given the same initial velocities on both planets.
The ball leaves the club at a speed of 18.7 m/s at an angle of 51.0? above the horizontal. It rises to its maximum height and then falls down to the green. Ignoring air resistance, find the speed of
A tennis ball is struck and departs from the racket horizontally with a speed of 28.4 m/s. The ball hits the court at a horizontal distance of 19.4 from the racket. How far above the court is the te
A spacecraft is traveling with a velocity of v0x = 6150 m/s along the +x direction. Two engines are turned on for a time of 918 s.
The components of these variables are: vx = x component of the velocity vy = y component of the velocity ax = x component of the acceleration ay = y component of the acceleration Which of these comp
what electric field strength should the plates be designed to provide, if the proton must be deflected vertically by 1.44 10-3 rad?
Four charges +0,25 nC, -3,00nC,-3,50 nC and +4,25nC are placed at the corners of square with sides of length 30,00 mum, place the -3,00nC charge on the negative x-axis, +2,25 cC charge on the positi
512 g of an unknown metal at a temperature of 15 degrees Celsius is dropped into a 100 g aluminum container holding 325 g of water at 98 degrees Celsius. A short time later, the container of water a
If the potential difference between the cathode and anode is reduced from 12.0 kV to 4.0 kV, with what speed will the electrons reach the anode.
How does the force curve compare to the distance curve? What differences are there? What would you say is the relationship between force and position?
Assuming ideal gas behavior. Why is this process isothermal (T1=T2)? Derive equations justifying.
How does the acceleration curve compare to the force curve? What differences are there? From looking at a graph, what would be the relationship between force and acceleration?
When the mass has its maxiimum positive velocity, is its distance from the equillibrium position maximum, minimum, or some other value? What about when it reaches maximum negative velocity? Explain
The electron gun in a color TV accelerates the electrons through about 25,000 Volts. Estimate the force on such an electron due to the magnetic field of the earth. Hint: The Earth's magnetic field i
Find the magnetic force on the electron when the earth's field has a horizontal component of 0.250 G and dips 60.0° below the horizontal (values typical in California).
The magnetic field near the surface of a neutron star has a magnitude of 1.00 108 T. Find the acceleration of an electron near the star moving at 1.09 107 m/s if both v and B are in the same plane,
What is the fundamental frequency of the string (in Hz) when a violinist puts her finger down on the string causing the vibrating part of the string to be 0.20 m in length?
If each string is 30.0 cm long, what is the magnitude of the charge on each sphere?
A) how far beyond the point at which you passed the police car ,will the police catch up with you. Assume that the police car continues to drive at constant speed. B) how fast will you be when the p
Two identical hollow cylindrical neodymium iron boron (NdFeB) magnets are placed on a nonmagnetic post so that one is suspended directly above the other.
A fugitive tries to hop on a freight train traveling at a constant speed of 5.0 m/s. Just as an empty box car passes him, the fugitive starts from rest and accelerates at a = 3.5 m/s2 to his maximum
A stone is dropped from the roof of a high building. A second stone is dropped 2.50 s later. How far apart are the stones when the second one has reached a speed of 10.0 m/s?
Why can you calculate the acceleration due to gravity of a free falling body from either its displacement versus time graph or its velocity versus time graph?