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A 3.5 m long horizontal rod has two forces applied to it. One on the far left corner with a force of 4N at 60 degrees downward, the other on the far right corner with a force of 10N at 60 degrees downward. There is a pin on the axis of rotation. The force of 4N is 2.5m to the left of the pin and the 10N force is 1.0m to the right of the pin. Determine the magnitude and direction of the force in the pin.
What is the tangential acceleration of a bug on the rim of a 13.0-in.-diameter disk if the disk accelerates uniformly from rest to the angular speed of 77.0 rev/min in 3.40 s.
Two bars of identical mass are at 30 °C. One is made from glass and the other from another substance. The specific heat capacity of glass is 840 J / (kg • C°).
An object is placed 17 cm to the left of a converging lens of focal length 30 cm. Find the position and magnification of the final image
When people sleep, their metabolic rate is about 2.6 x10-4 C/(s.kg). How numerous Calories does a 69 kg person metabolize while sleeping 9 hours.
you ar charged to work on reducing expenditures for a company.you think that the company can save considerable money on fuel costs by lowering the room temperature of the building for daily use, How much heat will be saved each morning
q1. revolutionary war cannon with a mass of 2220 kg fires a 22.7 kg ball horizontally. the cannonball has a speed of
What is the ratio of the intensities of an earthquake P wave passing through the Earth and detected at two points 17km and 49km from the source, what is the ratio of the amplitudes
Object O1 is 15.0 cm to the left of a converging lens of 10.0-cm focal length. A second lens is positioned 10.0 cm to the right of the first lens, What is the focal length of the second lens
A 65 kg hiker has fallen down a hole. One rescuer attaches a rope to the injured hiker and then a second rescuer pulls the injured hiker straight up out of the hole at a steady rate. How much force would the second rescuer need to exert on the rope t..
In order to estimate the properties of a uniform magnetic field, you shoot an alpha particle into the field. Determine the magnitude of the particle
A meterstick moving at 0.892c relative to the Earth's surface approaches an observer at rest with respect to the Earth's surface. What is the meterstick's length as measured by the observer
You walk 40m to the North then turn 50 degrees to your right and then walk another 30m. How far are you from where you originally started
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