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The gauge pressure in your car tires is 2.63×105 N/m2 at a temperature of 29.4ºC when you drive it onto a ferry boat to Alaska. What is their gauge pressure later, when their temperature has dropped to -17.9ºC ? Give your answer in terms of 105 Pascals.
A sled and rider with a combined weight of 59 kg are at rest on the top of a hill 10 m high. What is their total energy at the top of the hill
A thin sheet of transparent material in air, with refractive index1.54, is illuminated by monochromatic light of wavelength 614nm. Calculate the wavelength of the light in the material.
two speakers are playing two different but pure frequencies fa 110 hz an a two below middle c and fb 124 hz the b one
1. A small electric device has a resistance of 15 ohms when the current in it is 0.5 amperes. Calculate the voltage required to produce this current. 2. Calculate the velocity of a car (in m/s) that starts from rest and accelerates at 1 m/s2 for 6 ..
The coefficient of static friction between the wall and the rod is μs = 0.575. Determine the minimum distance x from point A at which an additional weight w (the same as the weight of the rod) can be hung without causing the rod to slip at point A.
what is the least count of a measurement instrument and how is it related to the number of significant figures of the
what is the current potential difference and dissipated power for each when they are connected in
a small 2.00-mm-diameter circular loop with r 1.1x10-2 ohms is at the center of a large 120-mm-diameter circular loop.
A player bounces a 0.47 kilogram soccer ball off her head, changing the velocity of the ball from vi = (8.5m/s)x + (-2.8m/s )y to vf = (6.0m/s )x + (3.6m/s )y. Find the magnitude of the impulse delivered to the ball
A football punter accelerates a football from rest to a speed of 10 m/s during the time in which his toe is in contact with the ball (about 0.17 s)
An electron has a de Broglie wavelength ? = 7.0×10?10m, What voltage was needed to accelerate it to this speed and What is its speed
The voltage across a two terminal device is always 15.0 V. The maximum power the device can dissipate is 0.87 W - Determine the maximum current magnitude allowed by the device power rating.
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