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A copper ball with a radius of 1.47 cm is heated until its diameter has increased by 0.198 mm. Assuming an initial temperature of 21.3°C, calculate the final temperature of the ball.
Planet Z is 12,000 km in diameter. The acceleration due to gravity on Planet Z is 7.0 m/s2.
a 100g on object is suspended from a spring. When 40 g are added the soring stretches an additional 5.0 cm. with the total mass of 1140 g the spring is set into vertical oscillations with amplitude of 10cm. What is the total energy of the oscillati..
Find out the magnitude and direction of the displacement
A sound source emits sounds of frequency 215 Hz that travel through still air at 340 m/s. Find the frequency heard by the listener
In a lab experiment, you attach a 3.0 kg weight to a spring scale. You lift the scale and weight with a constant reading of 22.5 N. find the value and direction of the acceleration on the weight
Find the electric field at the top point of a right circular solid cone of charge Q, uniform density. The cone has a radius a and a height h.
A wire runs through a 0.7 T magnetic field as shown. The dashed lines represent the magnetic field, and the solid black line the wire. What is the magnitude of the current through the wire
A body slides down a plane inclined at 40 degrees to the horizontal, with an acceleration of 2.3 meters/second^2. Determine the coefficient of kinetic friction
Compute the momentum of the bullet
The electric potential at a certain distance from a point charge can be represented by V, What is the value of the electric potential
A double speed trap is set up on a freeway. One police cruiser is hidden behind a billboard, and another is some distance away under a bridge. How far apart are the two cruisers
A wall is composed of two materials, material 1 has a thickness of 3.49 cm and a thermal conductivity of 0.1 J/msCo while material two has a thickness of 7.01 cm, what is the energy loss per second to the nearest watt
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