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Question1
A person lifts a 3.60 kg textbook with a 52.0 N force at a 60 degree angle from the horizontal. Sketch a free-body diagram of the forces acting on the book, ignoring air resistance.
Question2
A bottle has a mass of 29.40g when empty and 93.14g when filled with water. While filled with another fluid, the mass is 84.72g .What is specific gravity of this other fluid?
Question3
A ball is dropped from the top of a 55.0 -high cliff. At the equal time, a carefully aimed stone is thrown straight up from the bottom of the cliff with a speed of 27.0. The stone and ball collide part way up. How far above base of cliff does this happen?
A box slides across a frictionless floor with an initial speed v = 2.2 m/s. What is the shortest length of rough floor which will stop the box
The left ventricle of the heart accelerates blood from rest to a velocity of + 20.8 cm/s. How much time does blood take to reach its final velocity
A car of mass 1450 kg traveling at 26 m/s is at the foot of a hill that rises 140 m in 2.4 km. Find the average power delivered by the car's engine
Near the surface of the Earth a block of mass M is sliding down an incline with angle µ1 = 30degrees. what maximum height H will the block reach
Assume that positive -axis is directed toward the direction of motion of cart 2.
A parallel plate capacitor has square plates with sides of length 14 cm. The distance between the plates is 2 mm. How much energy is stored in the capacitor now
A group of particles is traveling in a magnetic field of unknown magnitude and direction. What is the direction of this the magnetic force
A certain string just breaks while it is under 25 N of tension. A boy uses this string to whirl a 0.75-kg stone in a horizontal circle of radius 2.00 m. The boy continuously increases the speed of the stone. At about what speed will the string bre..
You shine violet light through a diffraction grating (200 lines/cm) on a screen 2.0 m from the grating. The width of the light beam is 0.15 mm. How many slits will the light pass through
A helium-neon laser of the type often found in physics laboratories has a beam power of 4.00 mW at a wavelength of 633 nm. Calculate the force exerted on this sphere
Calculate the speed of the second ship with respect to Earth if it is fired in the same direction the first spaceship is already moving
A monatomic ideal gas expands on a linear process such that P=3V + P1 ( initial pressure.) P1 and V1 are the initial pressure and initial volume
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