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Three uniform spheres are located at the corners of an equilateral triangle. Each side of the triangle has a length of 1.40 m. Two of the spheres have a mass of 2.96 kg each. The third sphere (mass unknown) is released from rest. Considering only the gravitational forces that the spheres exert on each other, what is the magnitude of the initial acceleration of the third sphere?
Your spaceship lands on an unknown planet. You drop a 1.50 kg wrench from 5.50 m above the ground, What is the mass of the planet, in kilograms
A camera is equipped with a lens with a focal length of 23 cm. how far from the film should the lens be placed
An athlete starts at point and runs at a constant speed of 6.20 around a round track 250 in diameter, Find the component of this runner's average acceleration between points
A spherical balloon has the potential to reach a diameter of 35 cm, what would be the volume of this balloon when it reaches a pressure of 0.75P0 and a temperature of -15°C
the block diagram of the control of an electric heating system. the heater is driven from a voltage-controlled power
A 2-kg block rests on top of a table 80 cm from the floor. Find the potential energy of the book relative to the floor
A satellite is in a circular orbit very close to the surface of a spherical planet. The period of the orbit is 1.55 hours. What is density of the planet
A rope is used to pull a 3.57 kg block at constant speed 3.58 m along a horizontal floor. What is the work done by the rope's force
A thunderstorm drops 6.0cm of rain on a city that covers an area of 33 km by 45 km. approximation the number of raindrops that fell during the storm. You could assume the diameter of a raindrop is 2 mm.
An electron is released to accelerate from point 1 to point 2 in a potential region. The electric potentials at these points are V1 = -35 V and V2 = +200 V. Calculate the change in potential energy of this electron
A block of mass m is initially at rest at the top of an inclined plane with a height = 6 m which makes and angle of ? = 25 degrees with respect to the horizontal. What is the speed of the block as it leaves the ramp
A block whose weight is 41.0 N rests on a horizontal table. A horizontal force of 36 N is applied to the block, what will be the block's acceleration? (If not, enter 0.)
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