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1. What is better to warm up in a cold night a kg of hot water at 500C or a kg of gold at the same temperature? Why?
2. What is happening with the parameters (pressure, volume, and temperature) of an air bubble released by a frog at the bottom of a lake? Explain why.
Please provide in depth answer
Find the distance from the end of the ramp to where the jumper lands and her velocity components just before landing - Write down the equation of motion for the skier in the y-direction
An object that is 36 cm in front of a convex mirror has an image located 25 cm behind the mirror. How far behind the mirror is the image located when the object is 16 cm in front of the mirror?
An ion experiences a magnetic force of 5.9*10-16 N when moving in the positive x direction but no magnetic force when moving in the positive y direction. What is the magnitude of the magnetic force exerted on the ion when it moves in the x-y plane al..
A sheet of glass (n = 1.50) is coated with a 500 nm thick layer of cubic zirconia (n = 2.18). How many phase changes do the reflected rays undergo
consider an object which is rolling without slipping at constant speed on a level floor.a neglecting air resistance
The 1050.kg steel beam shown below is supported by two ropes. What is the tension in each rope
Visible light passes through a diffraction grating that has 900 slits per centimeter, and the interference pattern is observed on a screen that is 2.78 m from the grating, What is the difference between these wavelengths
A coil is located in a magnetic field and has a flux through it. The coil is stressed so that the area increases to 75 percent of its original value. determine how must the magnetic field change
A 550- resistor, and uncharged 1.50-µF capacitor and a battery with an emf of 6.18 V are connected in series. What is the initial current? What is the RC time constant? What is the current after one time constant? What is the voltage on the capacitor..
A hydraulic lift is used to jack a 970 kg car 12 cm off the floor. The diameter of the output piston is 18 cm, and the input force is 250 N. What is the area of the input piston
What is the difference between the actual static friction force and the maximum static friction force. Like if you increase an angle downwards the max static friction increases but the actual static friction decreases. Can someone please explain t..
A particle with a charge of 4.50nC is in a uniform electric field directed to the left. It is released from rest and moves to the left; What work was done by the electric force
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