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Q. Space invaders land on earth. On the invaders' temperature scale, the ice point is at 25°I (I = invader), and the steam point is at 153°I. The invaders' thermometer shows temperature on earth to be 55°I. Using logic similar to that in Example 1 in the text, what would this temperature be on the Celsius scale?
A Carnot engine takes in heat from a reservoir at 470°C and releases heat to the lower-temperature reservoir at 200°C. What is its efficiency.
Vector A has a magnitude of 10m and makes an angle of 78o with the positive x axis. Vector B also has a magnitude of 13m and is directed along the negative x axis. Enter your answers in distance then angle (in degrees).
What is acceleration due to gravity
While the positions of these balls are fixed, ground the ball X and then break the grounding. when X and Y remain in touch, remove Z. Then divide X and Y. What are the charges (if any) on each of the balls.
Illustrate a new gravitational potential energy
A copper-bottomed kettle, its bottom 24 cm in diameter and 3.0 mm thick, sits on a burner. The kettle holds boiling water, and energy flows into the water from the kettle bottom at 800 W.
The stairs are 83 long and inclined at the angle of 31. If a player has a mass of 87, estimate his average power output on the way up. Overlook friction and air resistance.
What is the maximum tension. The gastrocnemius muscle, in the back of the leg, has two portions, known as the medial and lateral heads. Assume that they attach to Achilles tendon. The cross-sectional area of each of these two muscles is typically f..
A 9kg block is connected by a string over a light pulley to a 5kg block that is sliding over a flat table (i.e. the 9kg is pulling the 5kg off the table). If Co-efficient of kinetic friction is 0.200, find the tension in the string.
What is the average induced EMF. what is the magnitude of the velocity of raindrops relative to the car.
What are the x and y components of the shell. What is the acceleration of the two blocks, in meters per second squared.
A 1000 {rm kg} wrecking ball hangs from a 15 {rm m}-long cable. The ball is pulled back until cable makes an angle of 25.0^circle with the vertical. By how much has the gravitational potential energy of the ball changed .
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