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Two vectors A and B, are added together to form the vector C = A + B. The relationship between the magnitudes of these vectors is given by: Cx = A cos 30° + B and Cy = A sin 30°. Which statement best describes the orientation of these vectors?
A sledge loaded with bricks has a total mass of 17.5 kg and is pulled at constant speed by a rope inclined at 20.3° above the horizontal.
When monochromatic light shines vertically on a soap film(n = 1.33) with air on each side, the second smallest nonzero film thickness for which destructive interference of reflected light is observed is 326 nm. What is the vacuum wavelength of the li..
Your car has stalled and you need to push it. You notice as the car gets going that you need less and less force to keep it going. How much work does the force of gravity do on the ball
Two Satellites A and B, each of mass 50 kg are in circular orbits at altitudes of 1000 km and 35000 km respectively. What is the difference in gravitational potential energies of the two satellites in their respective orbits
An electron has an initial velocity of 5.00 106 m/s in a uniform 3.00 105 N/C strength electric field. What is the direction of the electric field
a physics professor demonstrates the doppler effect by tying a 600hz sound generator to a 1.0-m-long rop, what are the highest and lowest frequencies heard by a student in the classs room
Define and explain Process Control Networks. According to your reading material, what was the name of the first computerized network and its origin?
A patient in therapy has a forearm that weighs 20.5N and lifts a 112.0N. The only other significant force on his forearm come from the biceps muscles (which acts perpendicularly to the forearm) and the forces at the elbow. If the biceps produce a ..
What is the gravitational attraction of someone on Earth due to the Sun? How does this compare with the gravitational attraction of the Moon?
The drawing shows two thermometers, A and B, whose temperatures are measured in °A and °B. The ice and boiling points of water are also indicated. Using the data in the drawing, decide the number of B degrees on the B scale that correspond to 1 °A on..
An aluminum beam 86 m long and with a cross-sectional area of 0.107 m2 is used as part of a bridge, If the temperature of the beam is increased by 31°C, what is magnitude of the extra force exerted by the beam on one of its supports
What is basic concept of force? can you give me good explanation by quoting some examples which are easy to understand for a non physics student?
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