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A wagon is rolling forward on level ground. Friction is negligible. The person sitting in the wagon is holding a rock. The total mass of the wagon, rider, and rock is 97.0 kg. The mass of the rock is 0.350 kg. Initially the wagon is rolling forward at a speed of 0.460 m/s. Then the person throws the rock with a speed of 16.5 m/s. Both speeds are relative to the ground. Find the speed of the wagon after the rock is thrown directly forward.
= ? m/s
Also, Find the speed of the wagon after the rock is thrown directly backward.
You have two weeks vacation and want to travel to a gambling space colony located 3.22 x 10^14 meters from Earth. how fast must you travel to accomplish this
The aorta in humans has a diameter of about 1.9 cm and at certain times the blood speed through it is about 60 cm/s. find the Reynolds number for blood flow through the aorta
two masses m1=2.0kg and m2=3.5kg are connected by a thin string running over a massless pulley. what is the acceleration of the masses
The period of a pendulum is proportional to the square root of its length. A 2.5 m long pendulum has a period of 3.0s
When released, the textbook slides on a horizontal tabletop with coefficient of kinetic friction k = 0.30. Use the work-energy theorem to find out how far the textbook moves from its initial position before coming to rest.
When two capacitors are connected in parallel across a 10.0 V rms, 1.0 kHz oscillator, the oscillator supplies a total rms current of 523 mA. What are the values of the two capacitors
A cannonball is shot (from ground level) with an initial horizontal velocity of 33 m/s and an initial vertical velocity of 24 m/s. How high above the ground is the cannonball 3.3 seconds after it is shot
The gauge pressure at the bottom of a reservoir is 7.0 times what it is at a depth of 1.3 m. How deep is the reservoir
On December 3, 2011, Jason sold th ebonds for $383,000 after amortizing $1,000 of the original issue discount. Illustrate what are the nature and amount of Jason's gain or loss?
A banked circular highway curve is designed for traffic moving at 67km/h. The radius of the curve is 209 m. Traffic is moving along highway at 48km/h on a rainy day.
A hiker weighing 565 N carries a 186 N pack up Mt. Whitney (elevation, 4420 m), increasing her elevation by 3000 m. Find the minimum internal work done by the hiker's muscles
q1. the student now starts moving a box up a 10.0deg incline keeping her 142 n forces directed at 27.0deg above the
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