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A rocket is launched at an angle of 50.0° above the horizontal with an initial speed of 101 m/s. The rocket moves for 3.00 s along its initial line of motion with an acceleration of 31.0 m/s2. At this time, its engines fail and the rocket proceeds to move as a projectile.
(a) Find the maximum altitude reached by the rocket.
(b) Find its total time of flight.
(c) Find its horizontal range.
An emf of 10 V is connected to a series RC circuitconsisting of a resistor of 1.3 x 106 Ω and a capacitor of2.9 µF. Find the time required for the charge on the capacitor to reach 89% of its final value.
Two rockets, A and B, approach the earth from opposite directions at speed 0.60c. What is the length of rocket A as measured by the crew of rocket B
Standing on the surface of a small spherical moon whose radius is 6.85·104 m, What maximum height above the surface of the moon will the rock reach
what is the electric potential energy of this particle. what is its speed just before it strikes the positive plate.
A 20.3?kg chandelier is suspended from the ceiling by four vertical steel wires. Each wire has an unloaded length of 1.15m, how far do the wires stretch
The sound level in decibels is typically expressed as ? = 10 log (I/I0), but since sound is a pressure wave, the sound level can be expressed in terms of a pressure difference. Intensity depends on the amplitude squared, so the expression is ? = 2..
Your goal in laboratory is to launch a ball of mass m straight up so that it reaches exactly height h above the top of the launching tube. Find an expression for the acceleration that will earn you maximum points
After inverting the tube 100 times, the temperature of the lead shot is found to have increased by 30C
A solid has a volume of 8cm3. When weighed on a spring scale calibrated in grams, the scale indicates 20g. What does the scale indicate if the object is weighed as immersed in a liquid of density 2g/cm3.
A worker drops a wrench from the top of a tower 88.00 m tall. With what velocity does the wrench strike the ground? (Suppose the positive direction is upward.)
A slide projector has a converging lens whose focal length is 119.00 mm. How far from the lens must the screen be located if a slide is placed 122 mm from the lens
To move a large crate of mass 30.05 kg across a rough floor, you push on it with a force at an angle of = 22.8° below the horizontal. Compute the acceleration of the crate if the applied force is 382 N and coefficient of kinetic friction is 0.486.
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