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A ball is thrown straight up in the air at an initial speed of 30 m/s. Using conservation of energy, find the maximum height of the ball.
A simple pendulum uses a steel wire as the "string." The length of this wire is 1.5 m at room temperature. What is the change in the period of the pendulum
A race car rounds a curve at 53 m/s. The radius of the curve is 450 m, and the car's mass is 620 kg. What is the centripetal force acting on the car
A photon is scattered 60.0° during a collision with an electron, which is initially at rest and gains a speed of 6.00× 106 m/s during the collision
Sam is a 60 kg diver. At the instant of take-off, his angular momentum about his medial-lateral axis is 20 kg x m^2/s, At take-off what is Sam's angular velocity about the medial-lateral axis
A 5.0 ? resistor is connected in series with another resistor and a 5.0 V battery. The current in the circuit is 0.70 A. Calculate the value of the unknown resistance
The electron's magnetic moment is known as the "Bohr Magnetron" and has a theoretical value of ?B?eh4?m, where "h" is Planck's constant (h=6.63×10?34 J?s), Calculate the magnetic moment value of the Bohr Magnetron
Three charges, q1=2.0x10^-8 C, q2= -3.0x10^-8 C, and q3= -4.0x10^-8 C, are located on the y-axis, Find the resultant force exerted on the third charge q3 by the other two charges
Two charged dust particles exert a force of 4.30×10-2 N on each other. What would be the force if they are moved so they are only one-sixth as far apart.
A diver 32.0 m deep in 8.00 °C fresh water exhales a 1 cm diameter bubble. What is the bubble's diameter just as it reaches the surface of the lake, where water temperature is 25°C? Hint: suppose the air bubble is always in thermal equilibrium wit..
Suppose Q and nQ are charges that are seperated from origin by -L and oL and the origin and that the origin as at a point of electrostatic equilibrium between them
Then, a thin conducting wire connects the spheres, redistributing the charge on each sphere. When the wire is removed the spheres still repel but with a force of F2 = 0.100 N. Using this information, find the initial charge on each sphere, q1 and ..
The mass of a copper atom is 3.57*10^-25 kg, and the density of copper is 8920 kg/m^3. Determine the volume of each cube
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