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You are designing a delivery ramp for crates containing exercise equipment. The crates of weight 1480N will move with speed 2.1m/s at the top of a ramp that slopes downward at an angle 25.0?. The ramp will exert a 625N force of kinetic friction on each crate, and the maximum force of static friction also has this value. At the bottom of the ramp, each crate will come to rest after compressing a spring a distance x. Each crate will move a total distance of 7.7m along the ramp; this distance includes x. Once stopped, a crate must not rebound back up the ramp.
Calculate the maximum force constant of the spring kmax that can be used in order to meet the design criteria.
A 145 g copper bowl contains 205 g of water, both at 20°C. A very hot 300 g copper cylinder is dropped into the water, causing the water to boil, with 5.40 g being converted to steam.
An ac generator with a frequency of 1.44 kilohertz and an rms voltage of 24.2 volts is connected in series with a 1.90 kilo-ohms resistor and a 330 mega hertz inductor. What is the average power consumed by this circuit
The magnetic flux through a coil of wire containing two loops changes from -41 Wb to +16 Wb on 0.35 s, What is the emf induced in the coil
What is an approximate absorbed dose rate in Gy per day in water at the center of the bucket if 163 atoms of Cs-137 disintegrate per g s? Use the straight-ahead approximation and mean-radius method of calculating the photon dose. Give the answers for..
A 5.00 X 10-2 kg mass with a charge of +0.75 mC is hung by a thin insulated thread. A charge of -0.9 mC is held 0.15 meters directly to right so that the thread makes an angle q with the vertical. What is the angle q and the tension in the string.
A wire of radius 0.5 cm carries a current of 150 A that is uniformly distributed over its cross-sectional area. find the magnetic field at the surface of the wire
An object of mass 126.309172 g executes SHM with an amplitude of 12.426183 cm, Find the force acting on the object at time 1.487176 s
Passengers riding in the Great Six Flags Air Racer are spun around a tall steel tower (see the figure). Calculate the speed of the planes
A 6.0 V battery is connected to a wire made of three segments of different metals connected one after another, Find the potential difference across tungsten wire
Assume the freezer operates for 5 hours each day, how much power does it require while operating
Released from rest at the same height, a can of frozen juice rolls to the bottom of the same hill. What is the translational speed of the frozen juice can while it reaches bottom.
Suzie (30 kg) is roller-blading down the sidewalk going 24 miles per hour. What is Suzie's average acceleration
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