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Julie throws a ball to her friend Sarah. The ball leaves Julie's hand a distance 1.5 meters above the ground with an initial speed of 18.0 m/s at an angle 41.0 degrees; with respect to the horizontal. Sarah catches the ball 1.5 meters above the ground. 1) What is the horizontal component of the ball's velocity when it leaves Julie's hand?the the correct answer is 13.58 2) What is the vertical component of the ball's velocity when it leaves Julie's hand? the correct answer is 11.8 3) What is the maximum height the ball goes above the ground? 4) What is the distance between the two girls? 5) After catching the ball, Sarah throws it back to Julie. The ball leaves Sarah's hand a distance 1.5 meters above the ground, and is moving with a speed of 15.0 m/s when it reaches a maximum height of 10.0 m above the ground. What is the speed of the ball when it leaves Sarah's hand? 6) How high above the ground will the ball be when it gets to Julie? (note, the ball may go over Julie's head.) 7) Below is some space to write notes on this problem.
Calculae the flow rate ( in grams per second) of blood in the aorta if the flow speed is 42 cm/s.
How much current is contained within the width of a thin ring concentric with the wire if the ring has the radial width of 12.0 µm and is at a radial distance of 1.2 mm.
A puck of mass m1 = 63g and radius r1 = 4.30 cm glides across an air table at a speed of = 1.50 m/s. It makes a glancing collision with a second puck of radius r2 = 6.00 cm and mass m2 = 115 g (initially at rest) such that their rims just touch.
A 3.60 long, 420 steel beams extends horizontally from the point where it has been bolted to the framework of the new building under construction. A 72.0 construction worker stands at the far end of the beam. What is the magnitude of torque about the..
Water flows straight down from an open faucet. The cross-sectional area of the faucet is 2.00 x10-4 m2, and the speed of the water is 0.87m/s as it leaves the faucet.
The burning of gasoline in a car releases about 3 × 10^4 kcal/gal. If a car averages 43 km/gal when driving 90 km/h, which requires 20 hp, what is an efficiency of the engine under those conditions.
What is the volume of the bubble when it reaches just below the surface of the lake, where temperature is 20°C.
A wheel 65 cm in diameter accelerates uniformly from 230 rpm to 355 rpm in 7s. How far will a point on the edge of the wheel have traveled in this time.
A hot air balloon is rising straight up with a speed of 6.0 m/s. A ballast bag is released from rest relative to the balloon when it is 9.54 m above the ground. How much time elapses before the ballast bag hits ground.
A 320 kg rocket sled can be accelerated at a constant rate from rest to 1400 km/h in 2.0 s. What is the magnitude of the necessary net force.
A very long solenoid of circular cross section with radius r= 5.4cm has n= 86.0 turns/cm of wire. An electron is sitting outside the solenoid, at a distance r= 5.90 cm from the solenoid axis. What is the magnitude of the force on the electron whil..
An electric field of 9.45 105 V/m is desired between two parallel plates, each of area 37.0 cm2 and divided by 2.45 mm of air. What charge must be on each plate.
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