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Jerry Seinfeld's water rocket of mass 2.70 x 102 g accelerates vertically upward at 36.0 m/s2 during launch, overcoming both gravity and air resistance.
(a) Draw a free-body diagram of the rocket during launch once it has departed from the launch pad.
(b) Calculate the thrust force applied by the rocket engine during launch if the air resistance acting on the rocket is 1.30 N.
Two identical point charge having charge of -2.5 x 10-6 C are 25 cm apart. Calculate the magnitude of Coulomb force on one of the charge
A 145 gram baseball is dropped from a tree 14.0 meter above the ground. If it hits the ground with a speed of 8.00 m/s, obtain the average force of air resistance exerted on it
The captain of a spaceship spots an asteroid moving towards her ship as shown below. Find the location of the collision and the velocity of the spaceship
An object located at the origin and having mass M explodes into three pieces having masses M/4, M/3, and 5M/12. Obtain the velocity components of the third piece
1. What basic factors are important in analyzing any type of crash?
Makayla is talking to Mia about the wheather we ever landed on the moon. Mia says" I have a theory about that." Using 3-4 complete sentences, what is wrong with Mia's use of the term "theory" in this instance?
In outer space, far from other objects, block 1 of mass 30 kg is at position m, and block 2 of mass 1350 kg is at position m. What is the (vector) gravitational force acting on block 2 because of block 1? It helps to make a sketch of the situatio..
Which container has more gas molecules?
A thin insulating stick 3.00 m long has a uniform charge density with a total charge of 7 micro Coulombs. The stick has one end at the origin and extends along the positive x-axis. What is the electric field vector at a point (3.00 m, 3.00 m) in a Ca..
A 3.7kg block of wood sits on a frictionless table. A 3.0 gbullet, fired horizontally at a speed of 350m/s, goes completely through the block, emerging at a speed of 230m/s. What is the speed of the block immediately after the bullet exits?
If astronauts could travel at v= 0.950c, we on Earth would sayit takes (4.20/0.950) = 4.42 years to reach Aplha Centauri, 4.29light years away. How much time passes on the astronauts clocks
A meterstick is at rest in an inertial frame S2. If S2 moves with a speed of 0.7c with respect to a rest frame S1, find the length of the meterstick as measured in frame S1 according to classical physics. Reply in units of m.
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