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Q. A 1000-N uniform beam is attached to a vertical wall at one end and is supported by a cable at the other end. A 1960-N crate hangs from the far end of the beam. Using the data, find out (a) the magnitude of the tension in the wire and the magnitudes of the (b) horizontal and (c) vertical components of the force that the wall exerts on the left end of the beam.
Which kind of research is Professor Carter employing.
A cylindrical container 1.6 m tall contains mercury to a certain depth d. The rest of the cylinder is filled with water. If the pressure at the bottom of cylinder is two atmospheres, what is the depth d.
A girl rides an escalator that moves her upward at a constant speed. As the girl rises, how do her gravitational energy and kinetic energy change.
A wheel has eight spokes and a radius of 33.0 . It is mounted on a fixed axle and is spinning at 2.80 . You want to shoot a 38.0 long arrow through the wheel, parallel to this axle, without hitting any of the spokes. Assume that the arrow and the ..
A 14 g bullet travelling at 247 m/s is fired into a 0.459 kg wooden block anchored to a 100 N/m spring. How far is a spring compressed to the nearest thousandth of meter.
What is magnitude of the momentum
A 0.180 kg baseball, travelling 32.0 m/s, strikes catcher's mitt that recoils 13.0 cm in bringing the ball to rest. What was an average force (in newtons) applied by the ball to the mitt.
Though sunlight varies with season and time of day, solar energy falls on United States at an average intensity of 200. Assuming you live in an average location, what total solar-cell area would you need to provide all of your energy needs with en..
When people sleep, their metabolic rate is about 2.6 10-4 C/(s • kg). How many Calories does an 83 kg person metabolize though getting a good night's sleep of 9.0 hours.
A thin, uniformly charged spherical shell has a potential of 720 V on its surface. Outside sphere, at a radial distance of 29.0 cm from this surface, the potential is 434 V.
A 13000 kg railroad car travels alone on a level frictionless track with a constant speed of 17 m/s. A 6500 kg load, originally at rest, is dropped onto the car. What will be the car's new speed.
In brief explain the changes that the Sun will go through after it exhausts its core hydrogen. Be sure to describe both the changes occurring in the Sun's core and the changes visible from outside the Sun. What do we mean by the stages we call hydrog..
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