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A mountain climber looks up a slope and sees an avalanche of boulders accelerating toward her. The boulders are initially60.0m above, moving at an initial speed of 2.00m/s and acceleratingat 4.00m/s^2. The climber reacts in 0.500sec. and begins torun down the mountain. At what speed must she run in order toreach the bottom of the slope, 30.0m below, before the boulders?
A block of mass m1 = 3.90 kg on a frictionless inclined plane of angle 30.0° is connected by a cord over a massless, What is the magnitude of the tension in the cord
Unpolarized light with intensity I0 is incident on two polarizing filters. The axis of the first filter makes an angle of ? = 60 ? with the vertical, What is the intensity of the light after it has passed through the second filter
A ski starts from rest and slides down a 22° incline 75 m long. If the coefficient of friction is 0.09, what is the ski's speed at the base of the incline? If there is snow level at foot of the incline and it has the same coefficient of friction, ..
question1a constant force of magnitude 82 n is applied to a 3 kg shoe box at angle 53 degrees causing the box to move
A drag force on a falling object in air is directly proportional to the square of its velocity. what will be the kinetic energy of an object
A neutron causes the element 88X232 to change according to the reaction 0n1 + 88X232 ---->ZYA + . Identify the (a) atomic number and (b) atomic mass number of the daughter nucleus. (c) This product subsequently undergoes Beta- decay, and its daughter..
A straight wire segment 2 m long makes an angle of 30° with a uniform magnetic field of 0.37 T. Find the magnitude of the force on the wire
The driver of one car sounds a 365 Hz frequency horn and the driver of the other car hears a frequency of 392 Hz, Determine the speed of both cars
Emilie's potter's wheel rotates with a constant 2.00rad/s2 angular acceleration. What was the angular velocity of the wheel at the beginning of the 3.60s interval
A magnetic field points perpendicular into a 5x12 cm rectangular coil of 44 turns and resistance .25 omega. what magnitude of emf is being induced in the coil
A rock is thrown vertically upward from the edge of a cliff. The rock reaches a maximum height of 19.6 m above the top of the cliff before falling to the base of the cliff, How high is the cliff
q1. how high does a rocket have to go above the earths surface until its weight is 0.8 times its weight on the earths
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