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A stone tosses at an angle of 60 degrees to the horizontal from the roof of a building at 10 m/s hits the ground in 3s. Neglecting the air resistance, calculate the height of the building and how far from the building did it land.
A 20.0-N block rests on a horizontal surface. The coefficients of static and kinetic friction between the surface, What is the force of friction acting on the block
What is the moment of inertia of the disk for rotation about an axis through the edge of the disk
A 40 kg child slides down a playground slide at a constant speed. The slide has a height of 3.6 m and is 7.6 m long. find the magnitude of the kinetic friction force acting on the child
One cubic meter of water flowing over Niagara Falls in New York drops 92.2 meters. how much heat energy would the water have
An object initially at rest moves a distance x when a force F is applied for time t. How far will the object move of a force of 2F is applied for the same time t
Assume this is the innermost line of interference (m = 0) and that speed of sound in air is 331 m/s, find the (linear) frequency of the sound in Hz.
A car (mass 930 kg) is traveling with a speed of 48 mi/h. A bug (mass 6 mg) is traveling in the opposite direction. What speed would the bug need
Dirty Harry is attempting to apprehend a dangerous criminal in a cheese shop, What is the magnitude of the Gouda's velocity after being struck by the bullet
A daring 51kg swimmer dives off a cliff with a running horizontal leap, What must her minimum speed be just as she leaves the top of the cliff so that she will miss the ledge at the bottom
A large punch bowl holds 3.00kg of lemonade (which is essentially water) at 25.0C. A 5.80×10^?2kg- ice cube at -10.0C is placed in the lemonade a)What is the final temperature of the system? Ignore any heat exchange with the bowl or the surroundin..
A small ball of mass, m = 8.60 × 10-9 g, has acquired an excess charge. The ball is then placed between two parallel plates spaced x = 3.45 mm, How many electrons did the ball gain or lose
A digital cell phone emits a 1.9 GHz electromagnetic wave with total power 0.60 W. At a cell phone tower 2.0 km away: What is the energy of an individual photon
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