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1. Electrons accelerated by a potential dissimilarity of 12.89 V pass during a gas of hydrogen atoms at room temperature. Compute the wavelength of light emitted with the longest possible wavelength
2. Compute the wavelength of light emitted with the shortest possible wavelength.
Sally travels by car from one city to another. She drives for 30.0 min at 69.0 km/h, 37.0 min at 34 km/h, and 54min at 74.0 km/h and she spends 13.0 min eating lunch and buying gas.
Because of the Earth's rotation, a plumb bob does not hang exactly along a line directed to the center of the Earth. How much does the plumb bob deviate from a radial line
1. all objects radiate energy in much the same way as an ideal blackbody. so why is it difficult to see objects in a
A pendulum consists of a ball of mass m=0.5kg attached to a string of length L=0.75m. find the tension in the string at the bottom of the swing
The temperature inside a house is 25°C while the temperature outside is 10°C. Approximately how much energy is radiated per second
A 0.33-m-long violin string has a mass of 0.89 g. The peg exerts a 45 N force on it. Determine the lowest frequency sound produced by the vibrating sting
A charge q1 = -7 µC is at the origin, and feels a force along the positive x-axis equal to 1.8 N. What is the x-component of the electric field
A rectangular coil of 100 turns measure 40cm by 20cm. This coil is placed next to an electromagnet which is switched on, what are the induced voltage and current in the coil
You are assigned the design of a cylindrical, pressurized water tank for a future colony on Mars, where the acceleration due to gravity is 3.71 meters per second per second. Find the net downward force on the tank's flat bottom
Mars has a small moon, Phobos, that orbits with a period of 7 h 39 min. What is the mass of Mars
A charged particle A exerts a force of 2.69 ?N to the right on charged particle B, when the particles are 14.0 mm apart. Particle B moves straight away from A to make the distance between them 17.0 mm. What vector force does it then exert on A?
water is moving with a speed of 2.3 ms through a perfectly sealed long pipe with a cross sectional area of 5 cm2. the
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