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Consider a basketball. In which situation will the basketball have the greatest buoyant force? When the...
explain why Name: when an On which of the following does the buoyant force on an object floating on the surface of a liquid most directly depend? Choose 1 answer @ viscosity of the liquid volume of the object © density of the liquid O mass of the liquid
A) Will the buoyant force on an aluminum sphere submerged in water increase, decrease, or remain the same, if the temperature is increased from 20oC to 40oC? Explain. B) Consider two days when the air temperature is the same but the humidity is different. Which is more dense, the dry air or the humid air at the same T?
Which situation has the greatest magnitude of net force along incline? (By magnitude we mean |F|.) a)when the cart is going uphill b)when the cart is going downhill c)when the cart is at rest d)the net force is always the same for an incline, f = mgcos? e)the net force is always the same for an incline, f = mgsin?
a) If you dive to the bottom of a deep pool, your eardrums may get uncomfortable or even start to hurt. On the other hand, if you take an airplane flight, you may find your eardrums getting uncomfortable in a different way. Both experiences arise from pressure changes, but how do they differ? Explain in your own words. b) Calculate the change in pressure your eardrums undergo when you dive to the bottom of a 4.85-m- deep swimming pool filled...
Which situation has both the first condition for equilibrium (net force = 0) and the second condition for equilibrium (net torque = 0)? 1) an automobile crankshaft turning at an increasing angular speed in the engine of a parked car 2) an airplane taking off (speed increases) 3) a thrown baseball that rotates as it moves through the air as a projectile (speed changes) 4) none of these
The scnario given in he bos belonw relates tms9 10 Two identical spring-loaded pellet guns are aimed differently. One is aimed straight up while the other is aimed at a 45° angle relative to the horizontal 9. The pellet shot from which gun rises higher? (Ignore air resistance.) a. b. c. d. The vertical gun The 45° angle gun They rise to the same height Not enough information is given to determine the answer Which pellet hits the ground with...
A 1.85 m tall basketball player attempts a goal 14.03m from the basketball hoop, which is at the height of 3.05 m. The acceleration of gravity id 9.81 m/s^2. If he shoots the ball at an angle of 46.0 degree, at what initial speed must he throw the basketball so that it goes through the hoop without striking the board? What is the time required for the ball to reach its maximum height? Determine the maximum height reached by the...
4- It is known that a particular normally consolidated soil layer was deposited under a lake. The situation that existed a long time ago is shown in Figure 1. Consider a point x in this soil deposit. The Point x was 20m beneath the water level and at a depth of z below the top of the soil deposit. At this point in time the climate of the area changed and the lake dried up and the soil deposit gradually...
Problem 3: Consider the situation in the figure - a student diver in a pool and an instructor on the edge, outside the water. Since the indices of refraction of air and water are different, the light rays coming from the diver and the instructor are refracted at the surface, changing their apparent position with respect to each other. The diver sees the instructor at an apparent angle of θa = 26°, measured from the normal to the interface. Randomized Variables: θa...
Consider the following situation, in which a compass is influenced by not only the force of Earth's magnetic field, but also an additional applied force. 1.) Which of the following is true of the angle of deflection of the compass relative to FEarth if FEarth > FApplied? The angle of deflection will be exactly 45o The angle of deflection will be greater than 90o The angle of deflection will be less than 45o The angle of deflection will be exactly...