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A catapult launches a rock at a 46° angle with respect to the horizontal. Find the maximum height attained if the speed of the rock at its highestpoint is 26.7 m/s.
A projectile is right at the edge of a 85 meter tall building . it is then fired with an initial speed of 25m/s at an angle 25 degrees above the horizontal and lands on the ground. how long will the projectile be in the air
A thin film of MgF2 (n=1.38) coats a piece of glass. Contructive interference is observed for the reflection of light with wavelengths of 500 nm and 625 nm.
5 moles of a monatomic gas has its pressure increased from 105 Pa to 1.5*105 Pa. calculate How much work is done by the gas
A skier is gliding along at 3.0 m/s on horizontal, frictionless snow. He suddenly starts down a 13 degree incline. His speed at the bottom is 13 m/s. What is the length of the incline
A 7 g bullet has a speed of 270 m/s and embeds itself into a 600 g block. How far does the block slide after the collision before coming to rest
A series R-L-C circuit is connected to a 170 Hz ac source that has Vrms=80.0 V. What average power is delivered to the circuit by the source
A wheel accelerates from rest to 12 rad/s at a rate of 78 rad/s^2. Through what angle (in radians) did the wheel turn while accelerating
A Light-weight potter's wheel, having a moment of inertia of 24 kg*m^2, is spinning freely at 40.0 rpm. what is the mass of the clay
An ac generator with a frequency of 1.54kHz and an rms voltage of 22.2V is connected in series with a 1.90k, What is the power factor for this circuit
a 15 m beam is supported (hinged supports) at both ends and is loades with a 50 n weight 4 m from one end and a 100 n weight 8 meters from the same end. what are the forces at the two supports
Two identical particles of mass m approach each other at equal and opposite speeds, v. How much kinetic energy was lost in this collision
A swimmer, capable of swimming at a speed of 1.0 m/s in still water (i.e., the swimmer can swim with a speed of 1.0 m/s relative to the water), How long does it take the swimmer to cross the river
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