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A 2.0 cm tall object is placed 15 cm in front of a converging lens with a focal length of magnitude 20 cm.
Find the image location and magnification.
Is the image real or virtual? Include diagram.
A 2.0 kg mass is attached to the end of horizontal spring (k = 50 N/m), What is the maximum speed of the mass
If the temperature outside is a freezing -15 (celsius), and as you drive at 60 km/h, you see a police car heading towards you, How fast is the police car traveling
A person walks 25.0 north of east for 3.10 km. explain how far would another person walk due north and due east to arrive at the same location?
A(n) 150 pF capacitor is connected in series with an unknown capacitor, and as a series combination they are connected to a 23.0 V battery, what is the unknown capacitance
A uniform door weighs 50-N and is 1.0 m wide and 2.70m high. What is the magnitude of the torque because of the door's own weight about a horizontal axis perpendicular to the door and passing through a corner.
Find an expression for the loop's velocity as a function of time as it enters the magnetic field. You can ignore gravity, and you can assume that the back edge of the loop has not entered the field
A 45kg pole-vaulter running at 12 m/s vaults over the bar. Her speed when she is above the bar is 1.90m/s. Avoid air resistance and determine her height as she crosses the bar.
A spaceship leaves earth (Event A), travels to pluto (which is 5.0 h away at the time), and then returns (Event B) exactly 11.0 h later. estimate the time measured between events A and B by the ship's clock
A 171 kg block of ice at 0.0°C is placed in a large lake. The temperature of the lake is just slightly higher than 0.0°C, and the ice melts very slowly, What is the entropy change of the universe
A hydrogen molecule with an initial velocity of 1200m / s makes a collision with a molecule of oxygen at rest. The reason for the masses of molecules is mO / mH = 16. What are the speeds of the molecules after collision.
A container of volume 23 cm3 is initially filled with air. The container is after that evacuated at 0oC to a pressure of 30 mPa. How many molecules are in the container after evacuation if we suppose that air is an ideal gas.
Consider two capacitors in air each with a capacitance C, both capacitors then were filled with liquid having a dielectric constant k, What is produced heat
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