From a height of 35.5 m , a 1.00 kg bird dives (from rest) into a small fish tank containing 54.5 kgof water. |
Part A What is the maximum rise in temperature of the water if the bird gives it all of its mechanical energy?
SubmitMy AnswersGive Up Provide Feedback |
From a height of 35.5 m , a 1.00 kg bird dives (from rest) into a...
A rock of mass 0.315 kg falls from rest from a height of 19.1 m into a pail containing 0.453 kg of water. The rock and water have the same initial temperature. The specific heat capacity of the rock is 1900 J/kg C°. Ignore the heat absorbed by the pail itself, and determine the rise in temperature of the rock and water in Celsius degrees.
A rock of mass 0.426 kg falls from rest from a height of 25.0 m into a pail containing 0.322 kg of water. The rock and water have the same initial temperature. The specific heat capacity of the rock is 1890 J/kg C°. Ignore the heat absorbed by the pail itself, and determine the rise in temperature of the rock and water in Celsius degrees.
a ball whose mass is .35 kg falls from rest through a height of 5.3 m and then bounces back. it reaches a maximum height of 3.8 m after the bounce before falling to the ground again. from the beginning at 5.3 m to the height of 3.8 m after the bounce. the magnitude of its mechanical energy has changed by a) zero b) 13.0 J c) 0.52 J d) 5.15 J
A mass M = 10.0 kg falls through a height h = 1.00 m, whilst attached to a pulley which turns a paddle wheel in a tub of m = 0.0100 kg of water at T = 10.0 Celsius. If M starts from rest and hits the floor at 2.00 m/s, what is the temperature of the water after M hits the ground?
6. A 2.00-kg rock is released from rest at a height of 30.0 m. Ignore air resistance and determine (a) the kinetic energy at 30.0 m. (b) the gravitational potential energy at 30.0 m, (c) the total mechanical energy at 30.0 m, (d) the kinetic energy at 0 m, (e) the gravitational potential energy at 0 m, and (f) the total mechanical energy at 0 m. ( 6 pts,) A person in a kayak starts paddling, and it accelerates from...
A mass 3 kg is released from rest at a height of 5 meters and slides down a frictionless curve. There is a patch that is 3 meters long with a kinetic coefficient of 0.2. Beyond that friction patch is a spring with a spring constant of 400 N/m. (There is no friction under the spring.) Calculate the maximum compression distance (x) needed to stop the mass the first time It compresses the spring. Calculate where exactly the mass stops...
6. A steel object was released from rest at a height of 150 m. What will be the change in temperature of the object after it hits the ground? Assume that 80% of the initial mechanical energy was absorbed by the object when it hits the ground. Specific heat of steel is c = 460 (15 points)
A body of mass m = 5 kg is released from rest from a height of 2 m above the ground. (a) What is the kinetic energy of the body just before hitting the ground? (b) At that point, what is its speed?
You drop a 2.5 kg book, from rest, from a height of 7.5 m. A student receives it at a height of 0.8 m from the floor. If the zero potential energy reference level is the floor, the kinetic energy in the problem book just an instant before falling into the hand of the student who receives it below is: Q ETV2 Libro 7.5 m Altura final 0.8 m Save A
1 point A 6.0 kg mass is released from rest at a height of 80 m. If air resistance is negligible and a = 10 m/s^2, the kinetic energy of the mass when it has fallen 60 m is *