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1) How much heat does it take to bring a 3.4 \rm kg iron skillet from 20 \rm {^\circ C} to 130 \rm {^\circ C}?2) If the heat is supplied by a stove burner at the rate of 2.0 \rm kW, how long will it take to heat the pan?
An ?-particle has a charge of +2e and a mass of 6.64 × 10-27 kg. find the magnitude of the magnetic force on it
mass, 0.057 kgs, driving force F0 = 8.9 N and linewidth 48 radians/second, has its damping constant, b, changed, Determine the new damping constant,b
student is running at her top speed of 5.2m/s to catch a bus, which is stopped at the bus stop. For what distance does she have to run in that case
A space ship travelling at speed 0.5c toward the earth ejects a spacepod travelling in a forward direction at a speed of 0.25c, what is the speed of light signal relative to the spaceship in term of c
The output signal intensity of the transducer is 40 Watt / cm2. The echo returning from a reflector deep inside the patient is 0.025 Watt / cm2. How many dB is the ratio of output signal to echo?
An ideal gas initially at 20°C and 199 kPa has a volume of 3.40 L. It undergoes a quasi-static, Find the heat added to the gas during the expansion
A block is sliding to the right up a inclined plane (10 degrees) at an initial speed of 0.5 m/s. The coeffecient of friction is 0.3. how large must the minimum coefficient of static friction be
A simple harmonic oscillator consists of a block of mass 2.00 kg attached to a spring of spring constant 110 N/m. What is the amplitude of the oscillations
The friction force in the sled is 1000N and the angle between the two ropes is 20 degrees. Explain how hard must each player pull to drag the coach at a steady 2.0 m/s?
In a standing wave pattern the distance between the second and the seventh nodes is 5cm. find the wavelength and the speed of the wave
q1. a dental bracket exerts the horizontal force of 80.0 n on a tooth at point b. what is the torque on the root of
In photo like the Hubble Deep Field, we see galaxies in many different stages of their lives. In general, which galaxies are seen in the earliest (youngest) stages of their lives.
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