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A model rocket is fired straight up from ground level with a constant acceleration of 50m*s^-2 until the engine runs out of fuel after 4 s. Neglecting air resistance, find:
A) the height of the rocket when the engine stops
B) the maximum height reached
C) the total time duration of the flight
A stationary mass M decays into a particle and a photon. If the speed of the particle is v, what is its mass? What is the energy of the photon?
a force of 20 n is applied at the edge of a wheel of radius 40 cm. find the torque acting on the
A bungee cord is stretched between two poles with a force of 447 N, What is the velocity of a wave on this bungee cord
An enlarging camera has a maximum extension of 4 ft between the negtive and the paper. what is the maximum enlargement that can be made with this equipment
Each time you remove a bulb you will calculate the new total resistance and the new current.
What is the greatest distance foot of the ladder can be placed from the base of the wall without the ladder immediately slipping.
A sample of 10.0 mCi decays 1.2% in a single day. What is the activity after 30 days?
A baseball outfielder throws a 0.15 kg baseball at a speed of 40 m/s and an initialangle of 30?. What is the kinetic energy when it hits the ground
An asteroid is discovered heading straight toward Earth at 15km/s. An international team manages to attach a giant rocket engine to the asteroid. The rocket fires for 10 min, after which the asteroid is moving at 29degree to its original path at a..
An ideal spring is lying horizontally on a frictionless surface, find the oscillation frequency of a 2.5 kg blcok under the same circumstances
Space vehicles traveling through Earth's radiation belts can intercept a significant number of electrons. The resulting charge buildup can damage electronic components and disrupt operations. Suppose a spherical metallic satellite 1.3 m in diamete..
Suppose that, because of an aneurism, the cross-sectional area, A(1), of a normal portion of a blood vessel increases to a value A(2) = 1.7A(1).
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