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Consider an insulated enclosed volume of 27m^3 containing dry air at 23 degrees celsisus and 980mb.
What is the specific volume and mass of the air sample?
The volume contains an internal heater that produces internal energy at a rate of 400watts. What are the temperature and pressure after 1 hour of heating?
An electric field of 490000 N/C points due west at the certain spot. What is the magnitude of the force that acts on a charge of -8.3 C at this spot.
The resultant displacement has a magnitude of 6.6m directed at the angle of 137 degrees from the positive x axis.
A penny is placed at the outer edge of a disk radius = .150 m that rotates about an axis that is perpendicular to the plane of the disk at the center. The period of the rotation is 1.80 s. Find out the minimum coefficient of friction neccesary to..
A torque of 60 Nm producing a counterclockwise rotation is applied to the wheel about its axle. A frictional torque of 10 nm acts at the axle.If the wheel is observed to accelerate at the rate of 2rad/s2 under the influence of these torques, what i..
A block of mass m = 2.00 kg is dropped from height h = 90 cm onto the spring of spring constant k = 1960 N/m. Find out the maximum distance the spring is compressed.
What is the horizontal distance between elbow and the point where the weight of the forearm acts.
Two point charges, q1 = 2.0 pC and q2 = -2.0 pC, are separated by 5.6 µm. 1) What is the dipole moment of this pair of charges?
A spring with a force constant of 130 is attached to the backpack and pulled horizontally, as indicated in the figure .If the backpack begins to slide when the spring ( = 130 ) stretches by 2.40, illustrate what is the coefficient of static fric..
When winter arrives, the towers stay the similar distance apart and the bridge deck keeps the similar shape as its expansion joints open. When the temperature drops to -10.0°C, what is the tension in the wire? Take Young's modulus for steel to be ..
When a 5.5 cm long pencil is arranged perpendicular to a convex mirror's optical axis at a distance of 29 cm from the mirror, its image is 2.8 cm tall. (a) What is the mirror's focal length? (b) How tall is the pencil's image if the pencil is move..
An electron accelerated from rest through the voltage of 500V enters a region of constant magnetic field. If the electron follows a circular path with a radius of 17cm, what is the magnitude of magnetic field.
The company's basis in the inventory is $5,000. Explain how large a deduction is it allowed for this charitable contribution?
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