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A hot air balloonist rises vertically with a constant velocity of 6.0 m/s and releases a sandbag at the precise instant when the balloon is 40.0 m above the ground.
a) calculate the position and velocity of the sandbag 1.0s after it is released.
b) what is the time when the sandbag hits the ground?
c) what is the maximum height above the ground the sandbag reaches as it is in freefall?
submarine on the ocean surface receives a sonar echo indicating an underwater object. What is the object's depth
Suppose that the mass of the dishwater is large as much as necessary so that its temperature does not change appreciably.
An ice machine converts 10 degree celsius water to 0 degree celsius ice. The ice machine has a COP of 3 and consumes elec
two point charges each have a value of 30.0 mC, compute the electric field midway between the two charges
What is the speed of the block of clay right after the collision. What impulse does the clay exert on the block.
A student holds a laser that emits light of wavelength 633nm. The beam passes through a pair of slits separated by 0.3mm, Find the speed of the first-order maxima on the screen
If the bullet buries itself in the block, find out how far along the ground that the block lands from the base of the table.
A thin glass rod forms a semicircle of radius r = 3.03 cm. Charge is uniformly distributed along the rod, with +q = 1.05 pC in the upper half and -q = -1.05 pC in the lower half
What is the total work W_fric completed on the block by the force of friction as the block moves a distance 8 rm m up the incline.
Find out the net force exerted on the fluid inside the box by summing momentum flow rates out through each of four sides of the box.
Particles pass through a single slit of width 2.0 mm (see Figure 29.15). The de Broglie wavelength of each particle is 490 nm. determine the minimum range of angles
An electron enters a magnetic field with a speed of 1.41x 10^6 m/s heading north and undergoes a semicircular path towards the east with a diameter of 10cm. find the time required to complete this semicircle
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