The image formed by a diverging lens of a real object is always
A. Smaller than the object
B. Inverted
C. Larger than the object
D. Virtual
E. Real
D. Virtual
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A rescue plane flying horizontally at 72.6 m/s spots a survivor in the ocean 182 m directly below and releases an emergency kit with a parachute. Because of the shape of the parachute, it experiences insignificant horizontal air resistance
If the kit descends with a constant vertical acceleration of 5.82 m/s2, how far away from the survivor will it hit the waves? A) 574 m B) 4.54 km C) 406 m D) 602 m
Find the momentum and speed of a proton whose kinetic energy equals its rest energy. (The mass of a proton is 938.3 MeV/c2).
What will be an ideal response?
The condensation sequence cannot explain the composition of the terrestrial and Jovian planets
a. True b. False Indicate whether the statement is true or false
Solar houses use a variety of energy storage devices to retain the thermal energy absorbed during the day so that it can be released during the night
Suppose that you were to use a device of this kind to produce steam at 100°C during the day, and then allow the steam to cool to 0°C and freeze during the night. How many kilograms of water would be needed to store 20.0 kWh of energy in this way? The latent heat of vaporization of water is 22.6 × 105 J/kg, the latent heat of fusion of water is 33.5 × 104 J/kg, and the specific heat of water is 4186 J/kg ? K. A) 12.4 kg B) 23.9 kg C) 35.7 kg D) 42.6 kg E) 54.2 kg