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Question: A person tries to heat up her bath water by adding 5.0 L of water at 80 degrees Celsius to 60 L of water at 30 degrees Celsius.
Q- What is the final temperature of the water?
Show me the detailed calculation of above question.
Three boxes move on a frictionless surface by the 120N horizontal force acting on the first box which weighs 20kg. The second box weighs 10kg and the 3rd box weighs 5kg. What is the acceleration of the system? What is the tension among the first box ..
A 160 object is taken to a height of 320 above the Earth's surface. What is the object's weight at this height
A pair of slits, separated by 0.180 mm, is illuminated by light having a wavelength of ? = 612 nm. Express this path difference in terms of the wavelength
A 70.0 football player is gliding across very smooth ice at 2.25 . He throws a 0.470kg football straight forward. What is the player's speed afterward if the ball is thrown at 16.5 relative to the ground
The siren of a police car atrest emits a predominant frequency of 1600 Hz and the police car isovertaking you from the rear, at a speed of 200 km/h. What frequency do you hear initially
The weight of passengers on a roller coaster increases by 60% as the car goes through a dip with a 30m radius of curvature
An intergalactic rock star bangs his drum every 1.30 s. A person on earth measures that the time between beats is 2.10 s. How fast is the rock star moving relative to the earth
Two masses m1=12 kg and m2= 35 kg are held connected by a massless rope hung over a frictionless light pulley. what is the tension of the magnitude in the string
The bonds pays interest semiannually on June 30 and December 31. The bonds are issued to yield 5%. Illustrate what are the proceeds from the bond issue?
Water has a specific heat capacity of 4186 J/kg C. A tank contains 500 kg of water at 10 C. what is the cost of heating the water
A string with a length of 3.0 m has two adjacent resonances at frequencies 112 Hz and 140 Hz. What is the wavelength of the first harmonic
A particular satellite was placed in a circular orbit about 153 mi above Earth. Determine the time required for one complete revolution
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