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Q1. A small statue in the shape of a falcon is painted black and has a weight of 24.1 N. The owner of the statue claims it is made of solid gold. What time the statue is completely submerged in a container brimful of water, the weight of the water that spills over the top and into a bucket is 1.25 N. Find the density of metal. Is the density consistent with the claim that the falcon is solid gold?
Q2. A 55.0 kg girl weighs herself by standing on a scale in an elevator.
a)What is the force exerted by the scale when the elevator is descending at the constant speed of 10 m/s?
b)What is the force exerted by the scale if an elevator is accelerating downward with an acceleration of 2.7 m/s2
c)If the elevator's descending speed is measured at 10 m/s at a given point, but its speed is decreasing by 2.7 m/s2, what is a force exerted by the scale?
A beam of particles is directed at a 0.014-kg tumor. There are 1.9 Ã- 1010 particles per second reaching the tumor, Find the biologically equivalent dose given to the tumor in 22 s
An explorer in dense jungles of equatorial Africa leaves his hut. He takes 41 steps at an angle 45 north of east, then 81 steps at an angle 60 north of west, then 51 steps due south. Suppose his steps all have equal length. Save him from becoming ..
A 17.0 m-long copper wire, 2.10 mm in diameter including insulation, is tightly wrapped in a single layer with adjacent coils touching, What is the length of the solenoid
The wall of a house consists of three layers: a wooden outer wall with an R factor of 1.0, a 3in layer of fiberglass insulation with an R factor of 11, what is the rate of heat loss throug an 8ft by 15ft section of this wall
A 40-g bullet leaves the muzzle of a gun at a speed of 300 m/s. If the barrel of the gun is 12 cm long, what is the force acting on the bullet while it is in the barrel.
A fisherman notices that his boat is moving up and down periodically due to waves on the water. What is the velocity of the wave
A charge of +6.0µC experiences a force of 2.0 mN in the +x-direction at a certain point in space. What was the electric field there before the charge was placed there
An object is dropped from rest from a height of 3.9 107 m above the surface of the Earth. If there is no air resistance, what is its speed when it strikes the Earth
An advertisement for a certain portable vacuum cleaner shows off its power with a photograph of the vacuum-cleaner wand suspending a bowling ball by the strength of its suction. find the weight of the heaviest ball the vacuum cleaner can lift
Find the angular acceleration - What is the torque on the rod when it makes an o angle q with the vertical - Find the kinetic energy of a solid sphere of mass 0.5 kg and radius 10 cm that rolls without slipping on level ground
hiker starts at his camp and moves the following distances while exploring his surroundings: 75.0 m north, Find his resultant displacement from camp
A particle contains the quark combination: u b, What is the charge of the particle and What is the baryon number of the particle
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