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Suppose a planet is discovered orbiting a distant star with 11 times the mass of the Earth and 1/11 its radius. How does the escape speed on this planet compare with that of the Earth?
Electrons are accelerated from rest through a potential difference of 350V and then enter a uniform magnetic field that is perpendicular to the velocity of the electrons. what is the angular speed of this electron
An oil well is 10,000 ft deep. It is shut-in at the wellhead. What is the gauge pressure of the oil at the wellhead, before the valve
Suppose that each of a person's hands makes contact with a different conductor over a surface area of 11.0 cm2. Find the resistivity of the skin
A 10-cm length of wire carries a current of 3.0 A. What is the magnitude and direction of the force on this segment of wire
An opera singer in a convertible sings a note at 419 Hz as cruising down the highway at 81.0 km/hr. What is the frequency (in Hz) heard by a person standing beside road in front of the car? suppose that the speed of sound is 343 m/s.
To determine the specific heat capacity of lead, you get 500g of lead shot to 100 degrees C and place it in an aluminum calorimeter of mass 250g, what is the specific heat of lead
A bouncy ball of mass 81 g is thrown straight into a wall at the speed of 23 m/s. What is the impulse applied to the ball by the collision
A 600-eV electron and a 300-eV electron trapped in a uniform magnetic field move in circular paths in a plane perpendicular to the magnetic field. What is the ratio of the radii of their orbits
question1a 32 percent efficient electric power plant generates 700mw of electric power and discharges waste heat into
A destroyer sends a sonar pulse out to detect a submarine directly below the ship in the ocean. how deep is the submarine
How far below the top of the well is the surface of the water. If you ignored the travel time for the sound, what would have been the calculated depth.
A circular loop of wire having a radius of 6.0 cm carries a current of 0.14 A. A unit vector parallel to the dipole moment of the loop is given by 0.40i -0.92j, Find the magnetic potential energy of the loop
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