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Question: An arctic weather balloon is filled with 10.2L of helium gas inside a prep shed. The temperature inside the shed is 9(deg)C. The balloon is then taken outside, where the temperature is -21(deg)C. Calculate the new volume of the balloon.
A massless rod of length 1.00 m has a 2.00-kg mass attached to one end and a 3.00-kg mass attached to the other. What is the angular speed of this system
An electron moves in the positive x-direction a distance of 2.31 m in 2.85·10-8 s, bounces off a moving proton, and then moves in the opposite direction a distance of 1.53 m in 3.33·10-8 s.
Two parallel plates carry uniform charge densities –0.65 and +0.65. Find the magnitude of the electric field between the plates. Find the magnitude of the acceleration of an electron between these plates.
The warm source of a Carnot cycle consists of a blast furnace operating at a temperature of 150C, calculate the net heat absorbed from the warm source
A)Determine the magnitude and direction of the electric field at a point 7.8 meters from this charge B) How far from this charge does the electric field have a magnitude of 2 N/C
A pen contains a spring with a spring constant of 251 N/m. How much work is done by the spring force to ready the pen for writing
Ultrasound with a frequency of 4.25 MHz can be used to produceimages of the human body. What is the wavelength in the body
In designing rotating space stations to provide for artificial-gravity environments, one of the constraints that must be considered is motion sickness. Studies have shown that the negative effects of motion sickness begin to appear when the rotati..
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).
A positron is a particle with the same mass and magnitude charge as an electron, but a positron has a positive charge. how fast is the positron moving
Density is the ratio of an object;s mass to its volume. Would you except density to be a vector or a sdcalar quanity? Explain.
A ballistic pendulum consists of a bullet (Mb=0.1kg) fired at a small wooden block (mw=0.5kg) attached to a string, 25cm long, connected to a pivot. How high does the pendulum reach above it's initial position
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