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A 400g piece of metal is dropped into a cup containing 450g of water at 15C. The final temperature of the system is 40C. What is the specific heat capacity of the metal, assuming thermal isolation?
X-rays are scattered from a target at an angle of 15.2° with the direction of the incident beam. Find the wavelength shift of the scattered x-rays
In a compound microscope, the focal lengths of the objective andeyepiece are +0.50 cm and +2.0 cm respectively. Compute the magnifying power of the microscope
A trap door, of length and width 1.65 m, is held open at an angleof 65.0 degrees with respect to the floor. what is the torque exerted on the trap door by the rope
A 15 kilogram block rest on a level frictionless surface and it is attached by a light string to a 5.0 kilogram hanging mass, determine the tension on the connecting string
Three resistors having resistances of 1.20 ohm, 2.50 ohm , and 4.60 ohm are connected in parallel to a 25.0 V battery that has negligible internal resistance. Find the equivalent resistance of the combination.
A dolphin wants to swim directly back to its home bay, which is 0.760 km due west. It can swim at a speed of 4.23 m/s relative to the water, but a uniform water current flows with speed 2.92 m/s in the southeast direction. What direction should th..
a the potential difference between the plates of a 2.90-microf capacitor is 80 v. how much energy is stored in the
A painter is using a ladder to paint the outside of a house. The ladder, which is 8.44 m long and has a mass of 23.7 kg, Calculate the net torque acting on the ladder
The tune-up specifications of a car call for the spark plugs to be tightened to a torque of 48Nm. With what force must you pull
a 1000kg cart is rolling to the right at 5.0ms. a 70kg man is standing on the right of the cart. what is the speed of
A cylindrical storage tank has a radius of 1.25 m. When filled to aheight of 3.28 m, it holds 13300 kg of a liquid industrial solvent. What is the density of the solvent
Water at the top of Niagara Falls has a temperature of 11.0°C. estimate the increase in temperature of the water at the bottom of the falls
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