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A rocket, weighing 4.36 x 104 N, has an engine that provides an upward force of 8.90 x 105 N. It reaches a maximum speed of 860 m/s. What is the net force?
The mass of the motor is four times the mass of the module. What is the speed (in km/h) of the command module relative to Earth just after the separation?
In the process of removing the remaining portion of the dielectric from the disconnected capacitor, how much work W is done by the external agent acting on the dielectric?
10.0-m-long wire of mass 123g is stretched under a tension of 255N. A pulse is generated at one end, and 20.0 ms later a second pulse is generated at the opposite end. Where will the two pulses firs
Three point masses each of mass m are connected by two thin rods each of mass M and length L. The central mass is at the origin and the z-axis is directed out of the page. Compute the moment of iner
How much energy is stored in the spring bumper when the carts have the same speed?
A proton is initially at rest at a point where the potential is 510 V. Some time later the proton is at a point where the potential is 186 V. If no force other than the electrostatic force acts on t
A 0.10 g plastic bead is charged by the addition of 1.0 x10^10 excess electrons (i.e. so the bead becomes negatively charged). What electric field (magnitude and direction) will cause the bead to h
A rigid tank contains 1.80 moles of an ideal gas. Determine the number of moles of gas that must be withdrawn from the tank to lower the pressure of the gas from 27.1 atm to 5.20 atm. Assume the vol
An empty capacitor is connected to a 12.2-V battery and charged up. The capacitor is then disconnected from the battery, and a slab of dielectric material (κ = 2.8) is inserted between the pla
A magnetic field of 1.4 T is perpendicular to a square coil of 16 turns. The length of each side of the coil is 5 cm. Find the magnetic flux through an individual turn of the coil.
The coefficient of kinetic friction between the block and incline is = 0.45. The mass of the spring is negligible.
The cylinder has a height of 5.80 cm, a face area of 13.0 cm2 on the top and bottom, and a density of 0.344 g/cm3, and 2.20 cm of its height is above the water surface. The water has a density of 1
Suppose the stationary observer sounds a horn that is identical to the one on the train. What frequency is heard from this horn by a passenger on the train?
Speedboat A negotiates a curve whose radius is 136 m. Speedboat B negotiates a curve whose radius is 218 m. Each boat experiences the same centripetal acceleration. What is the ratio vA/vB of the sp
A meter stick is pivoted at the 0.50-m line. A 3.0-kg object is hung from the 0.15-m line. Where should a 5.0-kg object be hung to achieve equilibrium (the meter stick oriented horizontal and motio
An 8.7 hour trip is made at an average speed of 73.0 km/hr. If the first third of the trip was driven at 96.5 km/hr , what was the average speed for the rest of the journey.
What thickness t of the glass with an index of refraction 1.60 must be interposed between the lens and P for the image to be formed at P', located 0.30 cm to the right of P?
How do your calculations support the importance of stepping voltages up with transformers for long distance transmission.
One car sounds a horn whose frequency is 235 Hz and a person in the other car hears a frequency of 223 Hz. What is the speed of the cars?
The pilot of a plane measures an air velocity of 151 km/h south. An observer on the ground sees the plane pass overhead at a velocity of 119 km/h toward the north. What is the velocity of the wind t
What are the possible fundamental frequencies of the retuned string?
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.
A 65 kg passenger is rounding the bottom of a curve (with radius 17 m) of a roller coaster. If the coasters speed is 20 m/s, what is the normal force of the seat on the passengers butt?
square coil of wire lies initially in the xy plane and is centered at the origin. A magnetic field B points in the positive z direction. If the loop of wire is then rotated about the x-axis, would y