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A 52 newton horizontal force pushes a 5.0kg mass sitting on a horizontal surface. Additionally, the horizontal surface exerts a 30 newton frictional force on the mass. What is the acceleration of the mass?
What is one experiment you could to show light is a particle. Clearly delineate how the results show it is a particle, and do not fit with the expectations of the experiment if it was a wave.
A golf ball strikes a hard, smooth floor at an angle of 37.5 ° and, as the drawing shows, rebounds at the same angle. What is the magnitude of the impulse applied to the golf ball by the floor
Thomson says that the photographic plate that took the image shown in Fig. was 32.5cm from the gold foil. Use that number and the fact that the diameter.
A 6.0-cm-diameter horizontal pipe gradually narrows to 4.0 cm. When water flows through this pipe at a certain rate, What is the volume rate of flow
A child sitting at the edge of a swimming pool sees a coin resting on the bottom of the pool. How deep is the pool at the location of the coin
We often turn the fan on in summer to help us cool. Explain how a fan makes us feel cooler in the summer. Also explain why some people use ceiling fans also in winter.
A golf ball strikes a hard, smooth floor atan angle of θ = 26.4° and, as the drawing shows, rebounds at the sameangle. The mass of the ball is 0.037kg, and its speed is 45 m/s just before and after striking thefloor. What is the magnitude of the i..
A long straight metal wire of radius r1= 3.10E-2 m is surrounded by a metalic cylindrical shell of inner radius r2= 1.19E-1 m and outter radius r3= 1.81E-1 m. The axes of the wire and the cylindrical shell coincide.
A liquid (? = 1.65 g/cm3) flows through two horizontal sections of tubing joined end to end. In the first section, the cross-sectional area is 10.0 cm2, Calculate the smaller section's pressure
A 5 kg sled is initially at rest on a horizontal road. The sled is pulled a distance of 2.7 m by a force of 36 N applied to the sled at an angle of 30o to the horizontal. Find the change in the kinetic energy of the sled
A thermos contains 153 cm3 of coffee at 93.9 °C. Tocool the coffee, you drop two 14.0-g ice cubes into the thermos. What is the final temperature of the coffee in degrees Celsius
A canoe has a velocity of 0.400 southeast relative to the earth. Find the magnitude of the velocity of the canoe relative to the river
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