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A 0.54 cm high object is placed 8.5 cm in front of a diverging lens whose focal length is -7.5 cm. What is the height of the image?
A disk, initially rotating at 106 rad/s, is slowed down with a constant angular acceleration of magnitude 2.24 rad/s2. How much time does the disk take to stop
You are asked to design a vibrating chair to serve as a ridefor chidren at a playground. The child is belted into the chairthat rests on a low-friction horizontal surface. The chair isattached at the end of a horizontal spring. The chair is pulled..
Since force is dp/dt, the force due to radiation pressure reflected off of a solar sail can be calculated as 2 times the radiative momentum striking the sail per second. In the vicinity of Earth's orbit around the Sun, the energy intensity of sunl..
A meterstick is moving by an observer in a diretion parallel to its length. what is the measured length in the reference frame of the observer
A negatively charged ion moves due north with a speed of 1.2×106 m/s at the Earth's equator. What is the magnetic force exerted on this ion?
A 10m^3 tank of compressed natural gas has an absolute pressure of 400 kPa at a temperature of 27 C. What is the mass of the gas in the tank
You are the science officer on a visit to a distant solar system. Prior to landing on a planet you measure its diameter to be 1.8x10^7m and its rotation period to be 22.3 hours, find the mass of the planet and star
What frequency will hear after the train passes
A bottle rocket is launched at an angle of 30 degrees from the ground with a speed of 200m/s. What is the range of the rocket if it lands on level ground
A current density of 6.00 multiplied by 10-13 A/m2 existsin the atmosphere at a location where the electric fieldis 70 V/m. Calculate the electrical conductivity of the Earth's atmosphere in this region.
A cylindrical container 2.00 tall contains mercury to a certain depth; the rest of the cylinder is filled with water. If the pressure at the bottom of cylinder is two atmospheres, what is the depth.
A molecule of DNA (deoxyribonucleic acid) is 2.05 µm long. The ends of the molecule become singly ionized: Determine the effective spring constant of the molecule
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