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A speedboat moves on a lake with initial velocity vector v1,x = 9.69 m/s and v1,y = -2.99 m/s, Find the speedboat's final speed
The current in the electron beam of a computer monitor is 415 ?A. How many electrons per second hit the screen
The mass of Jupiter is 300 times that of the earth, and the diameter is 11 times that of the earth, find the acceleration due to gravity on Jupiter's surface
The altitude of a hang glider is increasing at a rate of 6.79 m/s. At the same time, Calculate the magnitude of the glider's velocity
A sealed 63 m3 tank is filled with 5000 moles of ideal oxygen gas (diatomic) at an initial temperature of 270 K. determine The mass density of the oxygen gas
A cylindrical copper cable carries a current of 1290 A. There is a potential difference of 1.60 10-2 V, What is the radius of the cable
A model rocket blasts off and moves upward with an acceleration of 15m/s^2 until it reaches a height of 35m, what is the total duration of the rocket's flight
A vertical wall (7.2 m 2.8 m) in a house faces due east. A uniform electric field has a magnitude of 150 N/C. What is the electric flux through the wall
Cations are removed from the exchange complex of a 1 kg oven-dry soil sample by ammonium (NH4+) substitution. What is the cation exchange capacity of the soil
A projectile is launched at an angle of 60o with respect to the horizontal from the edge of a cliff which is 100 m high. Its initial speed is 30 m/s. find the displacement vector for the motion of t
A 1.50mm -diameter glass bead is positively charged. The potential difference between a point 1.50mm from the bead, What is the charge on the bead
A defibrillator is used during a heart attack to restore the heart to its normal beating pattern. How many electrons pass through the wires connected to the patient
On a spacecraft, two engines are turned on for 730 s at a moment when the velocity of the craft has x and y components of velocity v0x = 4040 m/s, Find the x and y components of the craft's accelera
The mirrors used in a particular type of laser are 99.99% reflecting. What is the force due to radiation pressure on one of the mirrors
The intensity of sunlight striking Earth's upper atmosphere (called the solar constant) is 1.35 kW/m2. Find the radiation pressure at the surface of the sun
The rms value of the electric field in an electromagnetic wave is Erms = 480 V/m. Find the average energy density
A rock climber throws a small first aid kit to another climber who is higher up the mountain. What is the vertical height between the two climbers
A parallel plate capacitor is connected to a battery. The space between the plates is filled with air. Find the electric field inside the dielectric
At some point in its orbit, our asteroid is moving with a speed of 20 kilometers per second. Determine the kinetic energy of the asteroid
Three identical metal spheres of qA=+3.0C qB=-5.0C qC=+6.0C. What is the final charge on each one
Three resistors, 27, 49, and 79 , are connected in series, and a 0.55 A current passes through them. What is the potential difference across the three resistors
Three successive resonant frequencies in an organ pipe are 865, 1211, and 1557 Hz. What is the fundamental frequency
A student driving at a constant speed of 45 m/sec passes a highway patrol car parked on the side of the road. How long does it take to over take the student
A uniform electrical field is established by connecting the plates of a parallel-plate capacitor to a 11V battery. The plates of the capacitor are separated a distance 3.50 cm. What is the capacitan
At rest, a car's horn sounds at a frequency of 410 Hz. The horn is sounded while the car is moving down the street. What is the speed of the car