Assignment Aid
Home
Search
Login
Search
Physics
Physics
High School
Suppose youre weighing yourself while standing next to the bathroom sink. Using the idea of action and reaction, explain why the scale reading will be less when you push down on the top of the sink. Why will the scale reading be more if you pull up on the bottom of the sink?
Physics
High School
Why did the big bang not produce a significant proportion of elements heavier than helium?
Physics
High School
Suppose you drop a rock into a dark well and, using precision equipment, you measure the time for the sound of a splash to return. Neglecting the time required for sound to travel up the well, calculate the distance to the water if the sound returns in 2. 00 s.
Physics
High School
A student holds a water balloon outside of an open window and lets go. The window is 10 meters above the ground, and the balloon is falling under the acceleration of gravity, which is 9.8 m/s2. There are two equations that can be used to describe its motion over time:x=x0+v0t+12at2v=v0+atWould the balloon hit the ground before or after 1.0 s of falling? Which equation did you use to decide, and what comparison did you make to determine that it would or would not hit the ground by then?explain in 3-5 sentences
Physics
High School
which method of measuring distances would you use if you wanted to measure the distance to stars in a nearby galaxy?
Physics
High School
Maria determines that the wavelength of a sound wave is 2. 50 meters and that the wave is traveling at 340 m/s.
Physics
High School
A mass of sunken lead is resting against the bottom in a glass of water. You take this lead, put it in a small boat of negligible mass, and float the boat in the water. Which of the following statements are true? (There may be more than one correct choice.)A. The sunken lead displaces a volume of water equal to the lead's own volume.B. The floating lead displaces a volume of water equal to the lead's own volume.C. The sunken lead displaces a volume of water whose weight equals the lead's weight.D. The floating lead displaces a volume of water whose weight equals the lead's weight.
Physics
High School
Luis does 6 joules of work in 3 seconds, what is the power he exerted?
Physics
High School
generally, what article of the nec must be consulted to determine the allowable ampacity for conductors?
Physics
High School
typical molecular speeds (vrms) are large, even at low temperatures. what is vrms (in m/s) for helium atoms at 4.85 k, less than one degree above helium's liquefaction temperature? m/s
Physics
High School
What is the frequency of a wave if it has a wavelength of 3.0 m and a wave speed of 12m/s?
Physics
High School
Your ear simultaneously hears waves from different sources, so it can hear beats from the two speakers. Suppose one speaker is driven at 586 Hz and the other at 560 Hz. Do you think the pitch of the waves sounds significantly different when both speakers are on?
Physics
High School
during the experiment, when you got a standing wave, the amplitude of the wave became much bigger than the amplitude of the oscillator. what was the reason for this?
Physics
College
b. Calculate the force acting on a falling 2 kg mass.
Physics
High School
a 5 kg box slides down a 3 meter long ramp angled at 30 degrees. the box feels a constant 10 n force of friction. if the box starts at rest, how fast is it going at the bottom of the ramp?
Physics
High School
What part of the body detects infrared radiation?
Physics
High School
A wheel of diameter 40. 0 cm starts from rest and rotates with a constant angular acceleration of 3. 00 rad/s2. At the instant the wheel has computed its second revolution, calculate the radial acceleration.
Physics
High School
Given that about 25% of the mammalian genome is associated with genes, including introns and regulatory sequence, what would be the approximate average length of DNA per gene, if the genome contained 20,000 genes?
Physics
High School
Write an algorithm that calculate the time a train need to arrive at a detination given peed and ditance
Physics
High School
a 5 kg ball and a 1 kg ball are dropped from the same height at the same time. which hits the ground first?
Physics
High School
the boy in the image below pushes a box across the floor by exerting a force of 140. n at an angle of 35.0o below the horizontal. what is the magnitude of the vertical component of the applied force (fay) ?
Physics
High School
so in a limit cycle attractor all behavior of the system goes towards the attractor but neutral oscillations have different behavior depending on different initial conditions?
Physics
High School
there are very large numbers of charged particles in most objects. why, then, dont most objects exhibit static electric effects?
Physics
High School
What is the speed of a wave that has a wavelength of 0.5 m and a frequency of two waves per second?
« Previous
Page 21
Next »