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Tarzan swings on a 30.0 m long vine initially inclined at an angle of 37.0o with the vertical. What is his speed at the bottom of the swing?
the voltage across the inductor La only depends on the mutual inductance and does not depend on the ac frequency.
A cable with 17.0 N of tension pulls straight up on a 1.10 kg block that is initially at rest. What is the block's speed after being lifted 2.40 m ? Solve this problem using work and energy.
Air enters an isentropic turbine at 145 psia and 900F through a 0.52 f^2 area with a velocity of 595 ft/s. It leaves at 15 psia with a velocity of 95 ft/s. Calculate the air temperature at the turbi
An obnoxious brat assigns his 0.0227-kilogram pet mouse Mickey the role of stunt mouse by stuffing him into a spring gun and shooting him up into the air at some angle. The gun's spring has a force
A body of mass 7.06 kg moves along the x axis influenced by a conservative-variable force F(x)= -4x^3 The body's initial speed at initial position 2.05 m is 8.01 m/s. What is the body's speed at x =
What would be the radius of the arc followed by a proton that entered the field with the same velocity as the deuteron?
Two plate capacitor with a plate area 0.1 m2 and distance between the plates of 1 mm is charged with a potential of 100V. Find capacitance of the capacitor, its charge, and the electric field betwe
A certain solenoid consists of 100 turns of wire and has a length of 10.0 cm. (a) Find the magnitude of the magnetic field inside the solenoid when it carries a current of 0.500 A.
A clay vase on a potter's wheel experiences an angular acceleration of 7.15 rad/s2 due to the application of a 14.1-N m net torque. Find the total moment of inertia of the vase and potter's wheel.
A passenger of mass 50.0 kg is in a car rounding a level curve of radius 100.0 m at a speed of 20.0 m/s. (a) Assuming that friction is the only horizontal force acting on the passenger, find the fr
Calculate the kinetic energy of the fastest electrons ejected from the surface. (b) Determine the maximum wavelength for which the photoelectric effect can be observed.
A 0.100 kg rock is attached to a 2.00 m long string and swung in a horizontal circle at a speed of 30.0 m/s. Find the tension in the string. Neglect the effect of gravity.
An 18-year-old runner can complete a 10.0 km course with an average speed of 4.39 m/s. A 50-year old runner can cover the same distance with an average speed of 4.28 m/s. a. What is the total time f
When two unknown resistors are connected in series with a battery, the battery delivers 250 W and carries a total current of 5.00 A. For the same total current, 40.0 W is delivered when the resistor
In a cloud chamber experiment, a proton enters a uniform 0.340 T magnetic field directed perpendicular to its motion. You measure the proton's path on a photograph and find that it follows a circul
If the magnitude of the magnetic force on a proton is when it is moving at 16.0 with respect to the field, what is the magnitude of the force (in terms of ) when this charge is moving at 30.5 with r
At the point where the spring is compressed a distance d (before the maximum compression, as the elevator is still dropping), find an expression for the speed.
Calculate the ratio of earth's rotational kinetic energy due to its rotation around its axis and the translational kinetic energy due to its motion around the sun. Consider the earth to be a homoge
After impact, the block with the embedded bullet slides 7 cm across the table, compressing the spring, before coming momentarily to rest. What was the initial speed of the bullet?
Two large parallel conducting plates, each having an area of 2.00 m^2, are 6.25 mm apart and have charges of equal magnitude and opposite sign on their facing surfaces. An electric force of 3.20*10
A 20000kg- railroad freight car collides with a stationary caboose car. They couple together, and 11 percent of the initial kinetic energy is dissipated as heat, sound, vibrations, and so on. What i
Two large parallel metal plates are uniformly and oppositely charged and the electric field between them is 7.6 × 10^6 N/C. (a) What is the charge density on each plate? (b) If the very large
What is the terminal speed (m/s) at which the bar falls? Assume the bar remains horizontal and in contact with the rods at all times
A) When the spring is released, how high does the cheese rise from this initial position? (The cheese and the spring are not attached.) Use 9.81 m/s^2 for the acceleration due to gravity. Express yo