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A 10-kg object on a frictionless table is subjected to two horizontal forces, F1→ and F2→ with magnitude F1 = 20 N and F2 = 30 N, as shown in Figure 4-40. Find the third horizontal force F3→ that must be applied so that the object is in static equilibrium.
Water is moving with a speed of 5m/s during a pipe with a cross-sectional area of 4 cm ^2. The water gradually descends 10mas the pipe cross-sectional area increases to 8cm^2. (a) What is the speed at the lower level? (b) If the pressure at the upper..
An object is placed 20 cm to the left of a converging lens of focal length 27 cm. A diverging lens of focal length 10 cm is 25 cm to the right of the converging lens. Discover the position and magnification of the final image
An ideal monotonic gas is compressed at a constant pressure of 0.9 atm from 14 L to 3.5 L. By how many cubic meters is the volume reduced
If no, then what will happen if 30 kilocalories of heat is added to the water? Give a numerical result as part of your answer.
A force acts on a block weighing 45N. The block is initially at rest on a plane inclined at angle θ = 18.0° to the horizontal. The positive direction of x axis is up the plane.
A 645 kg elevator starts from rest. It moves upward for 3.27 s with constant acceleration until it reaches its cruising speed, 1.60 m/s. What is the average power of the elevator motor
What minimum heat is needed to bring 230g of water at 20 degrees C to the boiling point and completely boil it away.
A space station shaped like a giant wheel has a radius 103 m and a moment of inertia of 4.96 108 kg · m2, What acceleration is experienced by the managers remaining at the rim
At 100 degrees C, the specific volume of water and steam are 1.043 cm^3/g and 1673 cm^3/g, respectively. The latent heat of vaporization is 2257 J/g. a) Calculate dP/dT
A thin film of acetone (n = 1.25) coats a thick glass plate (n=1.50). White light is incident normal to the film. Calculate the thickness of the acetone film
A ball with mass 450 grams hangs from a spring that is hanging from a ceiling. The spring's stiffness is 110 Newton’s/meter and its relaxed length hanging from the ceiling by the ball is 12.7 cm. What would be the relaxed length of the spring if the ..
A car is initially 4.0km south of a gas station and is moving with a constant speed of 55km/h due north. How far are the vehicles from the gas station when they pass each other
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