Find the speed of the rock just before it lands
An astronaut on Venus drops a rock straight downward from a height of 1.10 m. If the acceleration of gravity on Venus is 8.93 m/s2, what is the speed of the rock just before it lands?
Expected delivery within 24 Hoursrs
How much resistance must be added to a pure LC circuit with L = 266 mH and C = 1610 pF to change the oscillation frequency by 0.230 percent?
The engineer applies the brakes at a crossing, and later the last car passes the crossing with a speed of 16.5 km/h. Assuming constant acceleration, determine how long the train blocked the crossing.
If the coefficient of static friction between the board and the wall is 0.73, what is the least force you can apply and still hold the board in place?
For a damped oscillator with a mass of 350 g, a spring constant 75 N/m and a damping coefficient of 78 g/s, what is the ratio of the amplitude of the damped oscillations to the initial amplitude at the end of 25 cycles?
a 92 kg water skier floating in a lake is pulled from rest to a speed of 12 m/s in a distance of 25 m. what is th net force exerted in the skier, assuming the acceleration is constant.
On level ground a shell is fired with an initial velocity of 88.8 at 53.8 above the horizontal and feels no appreciable air resistance. Find the horizontal and vertical components of the shell's initial velocity.
A flat circular coil with 155 turns, a radius of 2.54 x 10-2 m, and a resistance of 0.457 Ω is exposed to an external magnetic field that is directed perpendicular to the plane of the coil. The magnitude of the external magnetic field is cha
A small ball of mass 81 g is suspended from a string of length 26 cm and whirled in a circle lying in the horizontal plane. If the string makes an angle of 23? with the vertical, find the centripetal force experienced by the ball. The acceleratio
An oxygen supply system mixes oxygen at 119 K and room air at 290 K at equal mass flow rates. What is the temperature of the resulting mixture in K? (c of oxygen = 918 J/kgK, c of air = 1012 J/kgK)
Two moles of a monoatomic ideal gas are contained at a pressure of 1 atm and a temperature of 300k. 34166j of heat are transferred to the gas, as a result of which the gas expands and does 1216j of work against its surroundings. the process is re
Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!