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if you throw a ball upward with an initial speed of 4m/s at 1.5 above the ground, find the final velocity just before touching the ground
Two cylindrical bars, each with diameter of 2.30 cm, are welded together end to end. compute the resistance between the ends of the welded bar
A closed ended manometer is used to measure the pressure in a tank of gas. what is the gauge pressure (in Pa) in the tank
Consider the circuit shown in the figure below, where C1 = 2.00 µF, C2 = 9.00 µF, and ?V = 18.0 V. Calculate the final charge on each capacitor
an electric dipole has charges of +- 4.55pC that are seperate by 6.00cm. The dipole lies on the x axis and its center is at the origin. Determine the torque on the dipole about its center of mass
A mass of 9.30 kg is suspended from a 1.45 m long string. It revolves in a horizontal circle, Calculate the angle between the string and the vertical
An ideal refrigerator utilizes a Carnot cycle operating between 0 degree C and 26 degree C. How much energy must be supplied to the refrigerator
A parallel-plate capacitor is made of two flat metal plates pressed against a thin slab of dielectric material. What is the dielectric constant of the material that was initially used to fill the gap
A hollow conducting sphere is surrounded by a large concentric, spherical, Using Gauss's Law, find the charges and the electric fields everywhere
Police investigators, examining the scene of an accident involving two cars, measure 72 -long skid marks of one of the cars, Estimate the initial speed of the car assuming a level road
The potential difference across a cell membrane from outside to inside is initially at -90 mV (when in its resting phase). How many ions move through the membrane
One mole of a monatomic ideal gas has an initial pressure, volume, and temperature of Po, Vo, and 335 K, respectively. Find the total heat (including the algebraic sign) for this three-step process
A capacitor is charged to a potential of 12.0 and is then connected to a voltmeter having an internal resistance of 3.10. estimate the time constant of the circuit
A 300-g block is dropped onto a vertical spring with spring constant k =180.0 N/m. find the speed of the block just before it hits the spring
The catapult on an aircraft carrier can take an aircraft from 0 to 182 mph in 11 seconds, at which time the aircraft launches
During the time interval between t = 0 s and t = 26 s the total amount of charge that has crossed a plane across a wire at time t , What is the maximum value of the current
A 0.7 kW heater is designed to operate at 210 V. Assume that its resistance is constant. What is the power dissipated in this resistor if it operates at 120 V
The proper length of one spaceship is five times that of another. The two spaceships are traveling in teh same direction, determine the speed of the other faster spaceship
An unstable particle having mass of 5.00x10^-27 kg is initially at rest. Find the rest masses of the fragments
Lead has a latent heat of fusion of 2.32x104 J/kg, a specific heat of 128 J/(kg K), and a melting point of 228°C. Calculate heat needed to melt the bullet
A small object of mass 2.00×10?2kg and charge 3.0uC hangs from the ceiling by a thread. obtain the tension in the thread
A spherical blackbody radiator has a temperature of 159°C. Its radius is 0.253 m. what is the net rate of energy radiated from the sphere?
An electric dipole of dipole moment = (5 × 10-10 C.m) is placed in an electric field = (2 × 106 N/C) +(2 × 106 N/C)
Consider a large chemical storage tank that is 100 ft in diameter and 25 feet tall. What is the force exerted by the fluid on the base of the tank
A runaway truck with failed brakes is moving with a speed of 130 km/h just before the driver steers up an emergency escape ramp inclined at 15 degrees above the horizontal