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Physics
Physics
College
an all so annoying fish fly bug encounters moving vehicle and splatters against the winshield. compared to the force of the car on the bug, the force of the bug on the car is.
Physics
High School
a current-limiting circuit breaker performs in a manner similar to conventional thermomagnetic circuit breakers at currents below a threshold of about?
Physics
High School
What is the frequency of the wave if its time period is 4 seconds?
Physics
High School
Tsunamis begin when some kind of trigger, such as an earthquake, landslide, or volcano, causes a large part of the surface of the water to rise or fall. True or false: after this sudden displacement of water, gravity acts to balance the water levels back, resulting in a tsunami.
Physics
High School
Label the atmosphere layers of a star
Physics
High School
a 1.80-kg block slides on a rough, level surface. when it is traveling at 2.00 m/s, the block hits a linear, ideal spring and compresses it by a distance of 11 cm before (momentarily) coming to rest. the coefficient of kinetic friction between the block and the surface is 0.56. what is the force constant of the spring?
Physics
High School
The cosmic microwave background is almost perfectly uniform in all directions, except for very small deviations in its temperature. what do scientists think these small deviations represent?
Physics
High School
A piano tuner stretches a steel piano wire with a tension of 765 n. the steel wire has a length of 0.900 m and a mass of 6.75 g. a. What is the frequency f1 of the string's fundamental mode of vibration?b. What is the number n of the highest harmonic that could be heard by a person who is capable of hearing frequencies up to f = 16 kHz?
Physics
High School
a converging lens made of crown glass has a focal length of 15.0 cm when used in air. if the lens is immersed in water, what is its focal length?
Physics
High School
Astronomers use the _______ of stars to determine how hot they are and their _______ to estimate how far away they are.
Physics
College
The pendulum was released from point A with (MECHANICAL ENERGY) ME = 10J. No Friction is present. What will be the approximate value of velocity at point M if the mass of the pendulum is 0.1 kg
Physics
High School
Calculate the velocity of a non-relativistic electron whose de broglie wavelength is 3.637 nm.
Physics
High School
is the sports car in question 9 has twice the speed of the minivan which vehicle has the higher kninetic energy wh
Physics
High School
every second, the sun converts about 600 million tons of hydrogen into 596 million tons of helium. the remaining 4 million tons of mass is __________.
Physics
High School
What makes infrared waves different from other waves?
Physics
High School
a 0.145 kg baseball is pitched at 39 m/s is hit on a horizontal line drive straight back to the pitcher. what is the avaerage force
Physics
High School
Do naps count as sleep?
Physics
High School
A 0.65 kg ball is attached to the end of a string. It is swung in a vertical circle of radius 0.50 m. At the top of the circle its velocity is 2.8 m/s.
Physics
High School
How does sleep heal the body?
Physics
High School
a block with a mass of 200 g is connected to a light horizontal spring of force constant 5.00 n/m and is free to oscillate on a horizontal, frictionless surface. find the period of its motion.
Physics
High School
Both ?? PLEASE PLEASE THANK YOU SO MUCH
Physics
High School
An intergalactic spaceship arrives at a distant planet that rotates on its axis with a period of T. The spaceship enters a geosynchronous orbit at a distance of R.
Physics
High School
Need help! Thanks lots!
Physics
High School
Alfredo deDarke often leaves household appliances on for no good reason (at least according to his parents). The deDarke family pays 15/kilowatt-hour (i.e., $.15/kWhr) for their electrical energy. Express your understanding of dollar power by filling in the following table.
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