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A large solar panel on a spacecraft in Earth orbit produces 1.8kW of power when the panel is turned toward the sun. What power would the solar cell produce if the spacecraft were in orbit around Saturn, 9.5 times as far from the sun?
What is the magnitude of the acceleration of a speck of clay on the edge of a potter's wheel turning at 45 rpm (revolutions per minute) if the wheel's radius is 25.6 cm
Two particles are fixed to an x axis: particle 1 of charge -4.00 10-7 C at x = 6.00 cm, and particle 2 of charge +4.00 10-7 C at x = 42.0 cm
A damped mass-spring system oscillates at 140 Hz. The time steady of the system is 2.0 s. At t = 0, the amplitude of oscillation is 8.6 cm and the energy of the oscillating system is after that 86 J.
A student, starting from rest, slides down a water slide. On the way down, a kinetic frictional force (a nonconservative force) acts on her. how fast is the student going at the bottom of the slide
an electron is shot at an initial speed of v0 = 2.00 × 106 m/s, at an angle ?0 = 35.0° from an x axis. It moves through a uniform electric field = (5.00 N/C), find the velocity of the electron when it hits the screen
question1a spherical mirror is polished on both sides. when concave side is used as a mirror the magnification is 2.0.
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..
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
how many joules of potential energy does 1.5-kg book gain when it is elevated 2 m? when it is elevated 4 mlet g 10
Two large parallel plates are separated by 0.90cmand carry uniform charge densities equal in magnitude and opposite in sign, Find the magnitude of the charge density on the plates
The surface area of the eardrum is about 8 x 10^-5 m^2. What is the power transmitted to the eardrum by a soundwave of 40 dB if no sound is reflected
A railroad car of mass 2.5 104 kg moving at 3.50 m/s collides and couples with two coupled railroad cars, How much kinetic energy is lost in the collision
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