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The piece is then turned around so that its convex side faces the object. The piece is moved so that the image is now 35 cm from the piece on the concave side.
A point-like source of monochromatic light radiates light of 700 nm. The source's power is 1 kilowatt. a) What is the irradiance due to this source on a screen, oriented with its surface normal to t
A power meter is then placed at the cavity output coupler for 1 minute. The reading is constant at 1mW. Determine the average number of photons per cavity mode.
A laser of wavelength 1030nm has an initial beam diameter of 1.5 mm, and the divergence half-angle of the conical beam is 1:6. Determine the spatial coherence length of the beam.
Determine the limits of the depth of field in the photograph, i.e. calculate the range of object distances which appear in focus?
If this ice were to fall into the sea due to melting because of global warming, estimate the resulting sea level rise if the oceans cover 71% of the surface of the ocean. Assume the radius of the Ea
The plane arrives in 2.00 h. What were the (a) magnitude (in km/h) and (b) direction of the wind velocity? Give the direction as an angle relative to due west, where north of west is a positive angl
An Other Frame moves with a speed of 0.85 relative to the Home Frame. An object at rest in the Home Frame has a length of 30 ns. What is the object's length in the Other Frame?
Consider the electric circuit shown here, consisting of a 12.0-V battery and three capacitors connected partly in series and partly in parallel. Find (a) the equivalent capacitance of this circuit a
A small plastic sphere with a charge of -7.0 nC is near another small plastic sphere with a charge of -12 nC. If the spheres repel one another with a force of magnitude 8.7×10-4N , what is the
A series LR circuit includes a 9.0. V battery, a resistance of 0.500 ?, and an inductance of 0.800 H. What is the greatest energy stored by the inductor after the switch is closed?
Lenz's Law is said to be a consequence of the principle of conservation of energy. Explain this statement by describing what would happen if Lenz's Law were reversed.
An emf of 10 V is applied to a coil with an inductance of 40 mH and a resistance of 5.0 ? Determine the energy stored in the magnetic field when the current reaches its maximum value.
In the units of kiloton, calculate the kinetic energy of an asteroid that has the size (box-shaped, 13 3 13 3 33 km) and composition (density, 2.4 g/cm3) of our solar system's asteroid Eros.
You immediately reply with the wake up call and an apology that the call is late, calling in your defense that the laws of physics prevented a timely response. a) Explain why it is impossible to ca
A muon is created by a cosmic-ray interaction at an altitude of 60 km. Imagine that after its creation, the muon hurtles downward at a speed of 0.998, as measure by a ground-based observer. After th
If she then hangs a mass of 220 g at 270°, at what angle should she hang a mass of 195 g so that the ring on the force table is in equilibrium? For maximum credit, show your work. Assume the giv
Assume that the total heat of vapourization (540 cal/g) of water is just sufficient to supply the energy needed to tear 1 g of water molecules apart from each other. A) How many molecules are there
The West Antarctic ice sheets (some 0.83 million km2 and only 6% of the total Antarctic ice surface) have an average thickness of 2.1 km,. If this ice were to fall into the sea due to melting becau
A glass window pane has an area of 3.00m^2 and a thickness of 0.600cm. If the temperature difference between its faces is 25.0C, what rate is the rate of energy transfer by conduction through the wi
You have 2 capacitors one with capacitance 10.3uF and the other of unknown capacitance. you connect the two capacitors in series with a difference voltage of 355V applied across the capacitors. You
The flash unit in a camera uses a special circuit to "step up" the 3.0 V from the batteries to 370 V, which charges a capacitor The capacitor is then discharged through a flashlamp. The discharge t
A shotputter throws the shot with an initial speed of 15.0m/s at a 45.0 angle to the horizontal. Calculate the horizontal distance traveled by the shot if it leaves the athlete's hand at a height of