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A blue ball is thrown upward with an initial speed of 24.3 m/s, from a height of 1 meters above the ground. 3 seconds after the blue ball is thrown, a red ball is thrown down with an initial speed of 10.9 m/s from a height of 32.3 meters above the ground. The force of gravity due to the earth results in the balls each having a constant downward acceleration of 9.81 m/s2.
1) What is the speed of the blue ball when it reaches its maximum height?
a test charge of +3x10-7 C is located 5cm to the right of a charge of -4x10-6 C and 10 cm to the left of a charge of -1x10-6 C.the three charges lie on a straight line. find the force on the test charge
here is a point on the x-axis between the two charges where the electric field is zero. Find out the location of the point where the electric field is zero.
A large balloon of mass 233 kg is filled with helium gas until its volume is 327 m3. Assume the density of air is 1.29 kg/m3, Calculate the buoyant force acting on the balloon
A baseball (m = 148 g) approaches a bat horizontally at a speed of 41.5 m/s (93 mi/h) and is hit straight back at a speed of 45.9 m/s (103 mi/h).
Calculate the positron and electron beam energy needed to create a Higgs boson (mass 125GeV) in the CMS system
You were driving a car with velocity m/s. You quickly turned and braked, and your velocity became m/s. What was the (vector) impulse applied to the car by the ground
Starting from rest, a 12-cm-diameter compact disk takes 3.3s to reach its operating angular velocity of 2500rpm. How much torque is applied to the disk
A certain amount of work is required to stretch spring A a certain distance. Compare the spring constants of the two springs
Assume that the mud ends up uniformly distributed over a surface area of the valley measuring 0.3 km x 0.3 km, What is the mass of the mud sitting above a 4 m2 area of the valley floor
A parallel plate capacitor has a charge on one plate of q = 1.3E-06 C. Each square plate is d1 = 2.2 cm wide and the plates of the capacitor are separated by d2 = 0.65 mm, What is the voltage between the plates
An airplane is flying with a velocity of 85.0 m/s at an angle of 25.0 degrees above the horizontal. When the plane is a distance 117 m straight above a dog that is standing on level ground, a suitcase drops out of luggage compartment. How far from..
a base for a building column measures 18.0 in. by 18.0 in. on a side and 12 in. high. compute the cross-sectional area
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