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Amber (n = 1.546) is a transparent brown-yellow fossil resin. An insect, preserved and trapped within the amber, appears to be 2.9 cm beneath the surface, when viewed directly from above. How far below the surface is the insect actually located?
A cube of mass m1 = 6.5 kg is sitting on top of another cube of the same size and mass m2 = 1.1 kg while they are both in free-fall
A 1 kg physics book lying on a 20 degree incline isattached to a 500g coffee cup. How far does the book slide
A ball m=10 g is launched straight upward by a spring. The spring was initially compressed 25 centimeter by a force of 1.25 Newton. Find how high does the ball rise assuming friction is negligible
A wire has a resistance of 27.4 Ω. It is melted down, andfrom the same volume of metal a new wire is made that is 3 timeslonger than the original wire. What is the resistance of the newwire?
A certain voltmeter draws 0.02mA for full-scale deflection at 50V. (a) What is the resistance of the voltmeter? (b) What is the resistance per volt?
an object travels in a circle of radius 2.0 m. at time t 0 the object has a velocity of 10 ms and it slows uniformly
Ships A and B leave port together. For the next two hours, What is the distance between the two ships two hours after they depart
A radar antenna is tracking a satellite orbiting the earth. At a certain time,the radar screen shows the satellite to be 162 km away.The radar antenna is pointing upward at the angle of 62.3 degrees from the ground.find the x and y components(in k..
7.125 Steam enters an adiabatic turbine at 7 MPa, 600 degrees C, and 80 m/s and leaves at 50 kPa, 150 degrees C and 140 m/s. If the power output of the turbine is 6 MW, determine (a) the mass flow rate of the steam flowing through the turbine and (b)..
A 16 kg wood ball hangs from a 2 m-long wire. The maximum tension the wire can withstand without breaking is 435 N. A 1.2 kg projectile traveling horizontally hits and embeds itself in the wood ball. What is the largest speed the projectile can ha..
A 1 kg wheel (hoop) rolls 5 rev. across a horizontal surface (without slipping)a distance of 3.2 m. if the wheel rolls for 3 sec. determine the angular velocity of the wheel
Neutron Scattering Show that if a neutron is scattered through 90° in an elastic collision with an initially stationary deuteron, the neutron loses 23 of its initial kinetic energy to the deuteron. (In atomic mass units, the mass of a neutron is 1.0 ..
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