Master Physics with Fun Quizzes & Brain Teasers!

Radiation from which type of decay has the MOST energy?O A. Gamma decayB. Alpha decayOC. Beta decayO D. Electromagnetic decaySUBMIT
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Read the info in the pic and then answer below Also quickly answer this along: If a DIY solar oven made with a pizza box has aluminum/tin foil on the bottom and sides of the box.. how does this help the food cook?
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A TV remote has a resistance of 9.2 and is connected to two AA batteries with a potential difference of 3.0 V. What is the current passing through the remote control?
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A wax block floats in water and an iron block sink in water, compare the densities of wax, water and iron. A. Pwater > Piron > Pwax B. Piron > Pwater > Pwater > Pwax C. Pwax > Pwater > Piron
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1. A certain electromagnetic wave is 5 nanometers (5.0x10-*9) long.(a) what is its frequency?(b) what type of electromagnetic radiation is this?2. The ultraviolet rays that cause sun burn are called UV-B rays. They have a wavelength of approximately 300 nanometers 3.0x10^(-7) m, what is its frequency?3. Infrared rays from the sun are wat make our skin feel warm on sunny day. If an infrared ray has a frequency of 3,0x10*12 HZ, what is it wavelength?4. Electromagnetic waves wit the highest amount of energy are called gamma rays. Gamma rays have wavelengths of less thank 10-trillionths of a meter (1.9=0x10*-11m).(a) Determine the frequency that corresponds with the wavelength.(b) Is this the minimum or maximum frequency of a gamma ray?(c) How much energy does this gamma ray have?
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A 20 nC charge is moved from a point where V= 130 V to a point where V= -70 V How much work is done by the force that moves the charge?Express your answer with the appropriate units.
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Find your mass if a scale on Earth reads 560 N when you stand on it
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If a charged particle is moving, it will have both and electric and magnetic field moving with it. true or false
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31. A cannonball is fired at some angle into theair. In the first second it moves 80 meters inthe horizontal direction. Assuming it doesn'thit the ground and air resistance isnegligible, how far does it move horizontallyin the next second?A. Less than 80 metersB. 80 metersC. More than 80 meters
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Question number 3 is the one I need help on
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A spring with a constant of 250 N/m is compressed .73 meters. The spring is sitting parallel to a frictionless tabletop with a 1.5 kg block of weed pushed into it. What will be the maximum speed of the block of weed at when the spring is allowed to spring?
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The mass of a moving object appears to be 3.11% greater than its rest mass. What is it speed?
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How do you think the energy at the top of the ramp will compare with the energy at the bottom of the ramp? Why do you think this?
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4.A balloon containing an ideal gas sits in a constant pressure chamber. The temperature of the chamber is raised from 275 K to 315 K. If the balloon started at a volume of 0.03 m3, what is the new volume after the temperature change?
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Two protons are 7.818 fm apart. (1 fm= 1 femtometer = 1 x 10-15 m.) What is the ratio of the electric force to the gravitational force on one proton due to the other proton?
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If 130 J of energy were added to 1 kg of each of the samples listed in the answer choices, which would experience the GREATEST temperature increase?A. AluminumB. BrassC. GlassD. Steel
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what is the relationship between voltage and energy? more precisely what is the relationship between potential difference and electric potential energy?
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Determine the coefficient of friction between the box and the table when the frictional force is 260 N and the normal force is 650 N.
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The force on a current carrying wire in a magnetic field is proportional to the current, the length of wire in the field, and the field strength. Is this true or false?
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If I pull a spring back slightly more than last time, what happens to its potential energy?A. Stays the sameB. IncreasesC. Not enough infoD. Decreases
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Two masses m1 and m2 (m1>m2) slide down a rough inclined surface of the same length and inclination. Which of the masses would be first to get to the bottom and why?
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Take a look around the room. Chances are, almost every type of energy is represented in the room somewhere. write down an example of each type from somewhere in the room.A. Which types can you see?B. Which ones are present but you cannot see?C. Are there any types of energy that are missing?
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Hudson travels 1,170 miles in a jet and then 260 miles by car to get to a business meeting. The jet goes 325 mph faster than the rate of the car, and the car ride takes 1 hour longer than the jet. What is the speed, in miles per hour, of the car
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How fast does a apple fall if it falls at 5mph?
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