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A 50.0g thermometer is utilized to gauge the temperature of 130mL of water. The specific heat of the thermometer, which is mostly glass, is 750J/(kgK), and it reads 18.0?C while lying on the table. After being completely immersed in the water, the thermometer's reading stabilizes at 73.8C. What was the actual water temperature before it was gauged?
An electric motor rotating a workshop grinding wheel at a rate of103 rev/min is switched off. Assume the wheel has a constant negative angular acceleration of magnitude1.50 rad/s2. How long does it take for the grindingwheel to stop?
A simple generator id designed to operate in the outback of Australia. The square armature consists of windings that are 36.0cm long on each side and the armature rotates in a magnetic field of 0.42 T at rate of 2300 revolutions per minute.
a car travels around 200 m radius flat curve at 40 ms at constant speed. what is the minimum static coefficient of
Steel train rails are laid in 12.2m -long segments placed end to end. The rails are laid on a winter day when their temperature is -2.00 oC. what is the stress in them on a summer day when their temperature is 33.0 oC
create a position vs. time speed vs. time and acceleration vs. time graph for both cars. write a paragraph comparing
You are driving along a highway at 35.0 m/s when you hear the siren of a police car approaching you from behind, What is the speed of the police car
A 2.80x 10^2 W electric immersion heater is used to heat a cup of water. The cup is made of glass and its mass is 3x10^2 g. It contains 250g of water at 15°C.
question an office window has dimensions 3.4 m by 1.7 m. as a result of the passage of a storm the outside air pressure
a c-glass filament reinforced epoxy composite contains 65 vol filaments and has a density of 2.24 mgm3. if the c-glass
The figure shows a lower leg being exercised. It has a 49-Nweight attached to the foot and is extended at an angle with respect to the vertical. Consider a rotational axis at the knee, as indicated.
A skyrocket explodes just as it reaches the top of its trajectory at a height 1.31 km above the ground. With what speed was the shrapnel ejected by the explosion
A 80.0 Hz generator with an rms voltage of 150 V is connected in series to a 3.20 k ohm resistor, estimate the phase angle between the current and the voltage
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