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In a certain binary-star system, each star has the same mass which is 9.6 times of that of the Sun, and they revolve about their center of mass. The distance between them is the 5.5 times the distance between Earth and the Sun. What is their period of revolution in years? Please use the numbers given!
On a cool morning, while the temperature is 12.0 deg Celsius, you measure the pressure in your car tires to be 20psi. After driving 40.0 mi on the freeway, the temperature of your tires is 56deg Celsius. What pressure will your tire gauge now show..
A mass of 1.0 kg is pushed against a spring with a spring constant of 25 N/m. What is the kinetic energy of the mass after the mass is released and it is no longer in contact with the spring
A water slide launches a child horizontally above a swimming pool. How far from the launch point does the child land in the water
a sled of mass 1 kg has an initial speed of 1.00m/s across a horizontal surface. the force of friction between the sled and surface is 0.2N. What is the speed of the sled after it ha traveled a distance of 2.00m
Calculate the net torque about the asle of the wheel assuming that a friction torque of .40m*N opposes the motion. determine its angular acceleration and angular speed
a block of mass 12.0 kg is connected to a spring on a horizontal frictionless surface. write the expression for the position of the block as the function of time
The wavelength of an electromagnetic wave is measured to be 4.15 x 10^-6 m. What is the frequency of the wave, What type of EM wave is this
A cooling fan is turned off when it is running at 175rpm. What was the fan's angular acceleration, assumed constant
Calculate the force a piano tuner applies to stretch a steel piano wire 7.70 mm, if the wire is originally 0.850 mm in diameter and 1.30 m long
A fire truck has a siren with that generates a sound with a frequency of 6686 Hz. what frequency will you observe
A baseball has a mass of 0.140 kg, and it is pitched towards home plate at a speed of 54.0 m/s. what is the final speed of the ball
A 28-turn circular coil of radius 4.20 cm and resistance 1.00 %u03A9 is placed in a magnetic field directed perpendicular to the plane of the coil. Calculate the induced emf in the coil at t = 5.80 s
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