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1. If an object has a mass of 1.0 Kg, what is it's weight on Jupiter with 2.5 times the gravitational force as on earth?
2. What net force is necessary to accelerate a 1000-Kg space probe 8m/s2?
3. How much heat that must be added to raise the temperature of a cup of coffee (250g) from 25.5ºC to 95.6ºC. Assume that the coffee has a specific heat of 4.187 ?
4. Which of the following reactions is not correctly balanced?a. 4Fe + 3O2 → 2Fe2O3b. C3H8 + 10O2 → 3CO2 + 4H2Oc. N2 + 3H2 → 2NH3d. 2H2O → 2H2 + O2
5. How long would it take for a radio wave to travel 8.00 x 1010 m?
6. A pH 2 solution has _____ times the concentration of hydroxide as a pH 6 solution.
The red light emitted by a helium–neon laser has a wavelength of 632.8 nm. What is the frequency of the light waves?Hz
The plane of a rectangular coil, 4.0cm by 8.0 cm, is perpendicular to the direction of a magnetic field, vector B . If the coil has 50 turns and a total resistance of 8.0 Ω, at what rate must the magnitude of vector B change to induce a current of..
A dam holds back water. In the dam is a turbine that produces power with an efficiency of 0.73. what is the velocity of the water leaving the turbine
An electron and a proton are accelerated starting from rest through a potential difference of 10 million volts. Find the momentum (in MeV/c) and the kinetic energy (in MeV) of each
A 10 N horizontal force F pushes a block weighing 9.0 N against a vertical wall. The coefficient of static friction between the wall and the block is 0.75, What is the frictional force on the block
A high fountain of water is located at the center of a circular pool, Not wishing to get his feet wet, a student walks around the pool How high is the fountain
A nozzle is now attached to the end of the hose. If the nozzle diameter is one-third the diameter of the hose, what is the speed of the water leaving the nozzle
A beam of 6 MeV electrons passes through a 400 micro-meter thick silicon detector. Estimate the energy lost by the electrons when crossing 200 micro-meters, 300 micro-meters and the full thickness of the detector.
Consider a 76.0-kg man standing on a spring scale in an elevator. What does the spring scale register while the elevator is traveling at constant speed
A cable is used to raise a 29kg urn from an underwater archeological site. There is a 21 N drag force from the water as the urn is raised at a constant speed.
The intensity 18m from a source of sound is measured to be 10^-4W/m^2. Determine the intensity of the sound in decibels
Two slits are illuminated by light that consists of two wavelengths. One wavelength is known to be 436 nm. Evaluate the wavelength of the other light
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