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An object of mass 50.5 g is initially placed in boiling water so that it is at 101° C. Then the object is dropped into a calorimeter, consisting of 103 g of water in an aluminum cup of mass 143 g, thermally insulated from the surroundings. The initial temperature of the calorimeter is 18.8° C and the final temperature is 40.8° C. Find the specific heat of the object.
cal/g-C°
The centers of a 12kg lead ball and a 100g lead ball are separated by 6.0cm. What gravitational force does each exert on the other
To fill a child's inflatable wading pool, you use a garden hose with a diameter of 2.90 cm. Water flows from this hose with a speed of 1.50 m/s. How long will it take to fill the pool to a depth of 25.0 cm if the pool is circular and has the diame..
A 5cm radius sphere is filled with a uniform volume charge with charge density 2.3\times10-6C/m3, Calculate the electric flux out of the surface of the cube
An observation satellite orbits the planet at a height of 1000 . What is the projectile's speed as it passes the satellite?
A cannonball launched with an initial velocity of 131 m/s at an angle of 40° follows a parabolic path and hits a balloon at the top of its trajectory.
Where Is The Net Force Zero? Three point charges lie along the x-axis. The positive charge q1 = 15.0 ?C is at the x = 2.00 m, What is the x coordinates of q3
The magnetic flux that passes through one turn of a 18-turn coil of wire changes to 5.0 Wb from 14.0 Wb in a time of 0.020 s. What is the resistance of the wire
A 73 kg parachutist descends during a vertical height of 420 m with constant speed. Find the increase in entropy produced by the parachutist; assume the air temperature is 21°C.
A car changes it speed from rest to 12 km/hr in 4sec .If the mass of the car is 2000 killograms what is the net force acting on the car
A stone is dropped into a river from a bridge 41.9 m above the water. What is the initial speed of the second stone
how to Calculate the acceleration of the system. Assume the magnitude of the acceleration is the same during starting and stopping.
The initial height of the block is 0.5 m above the lowest part of the slide and the spring constant is 450 N/m. Illustrate what is the block's speed when it is at a height of 0.25 m above the base of the slide?
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