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Physics
Physics
High School
order the structures that a pressure wave passes through in the cochlea, beginning from the oval window and ending at the round window.
Physics
High School
Element x has two isotopes. If 72. 0% of the element has an isotopic mass of 84. 9 amu and 28. 0% has an isotopic mass of 87. 0 amu, the average atomic mass of element x is numerically equal to.
Physics
High School
question what would cause a backpack sitting on the floor of the school bus to suddenly fly forward? responses the bus makes a hard turn to the left. the bus makes a hard turn to the left. the bus is going forward and suddenly stops. the bus is going forward and suddenly stops. the bus is going backward and suddenly stops. the bus is going backward and suddenly stops. the bus makes a hard turn to the right.
Physics
High School
The specific gravity of an material is defined as the ratio of the density of the material to the density of water. The specific gravity of ice is 0.917, whereas that of seawater is 1.025.What fraction of an iceberg is above the surface of the water?\frac{V_{above}}{V_{total}} = ____________
Physics
High School
If a 65-kilogram astronaut exerts a force with a magnitude of 50. Newtons on a satellite that she is repairing, the magnitude of the force that the satellite exerts on her is.
Physics
High School
a tall tree is growing across a river from you. you would like to know the distance between yourself and the tree,as well as its height, but are unable to make the measurements directly. however, by using a mirror to form an image of the tree and then measuring the image distance and the image height, you can calculate the distance to the tree as well as its height. suppose that this mirror produces an image of the sun, and the image is 0.8501 m from the mirror. the same mirror is then used to produce an image of the tree. the image of the tree is 0.9605 m from the mirror. (a) how far away is the tree? (b) the image height of the tree has a magnitude of o. 14 m. how tall is the tree?
Physics
High School
What is energy associated with motion called?
Physics
High School
an athlete at the gym holds a 3.0 kg steel ball in his hand. his bio arm is 70 cm long and has a mass of 4.0 kg. what is the magni- tude of the torque about his shoulder if he holds his arm a. straight out to his side, parallel to the floor?
Physics
High School
Nancy is knitting a scarf. It takes her 0. 2 of an hour to knit each inch of the scarf. She wants the length of the scarf to be 60 inches. How many hours will it take her to make the scarf?.
Physics
College
Curran is testing out a newly waxed hallway floor by sliding in his socks.He runs from one end of the hallway and starts sliding midway going allthe way to the right. The forces acting on Curran as he is sliding arerepresented in the diagram below. Identify the forces and match themcorrectly to the numbers.
Physics
High School
what pressure does light emitted uniformly in all directions from a 200-w incandescent light bulb exert on a mirror at a distance of 5.0 m?
Physics
High School
. unpolarized light is incident upon a smooth surface. when light reflected from this surface is totally polarized, the incident light angle is named the
Physics
College
f the perimeter of the window is 16 feet, find the exact value of x (in ft) so that the greatest possible amount of light is admitted.
Physics
College
a 70.0 cm, uniform, 60.0 n shelf is supported horizontally by two vertical wires attached to the sloping ceiling (figure 1). a very small 25.0 n tool is placed on the shelf midway between the points where the wires are attached to it.a 70.0 cm, uniform, 60.0 n shelf is supported horizontally by two vertical wires attached to the sloping ceiling (figure 1). a very small 25.0 n tool is placed on the shelf midway between the points where the wires are attached to it.
Physics
High School
Some students were on a tour exploring the inside of a cave. While the students were in the cave, they realized they heard an echo every time that they spoke. Which MOST likely caused the echo to occur?A. the accumulation of the sound wavesB. the diffraction of the sound wavesC. the refraction of the sound wavesD. the reflection of the sound waves
Physics
High School
Starting from rest, an object rolls freely down a 10. -meter long incline in 2. 0 seconds. The acceleration of the object is.
Physics
High School
The magnitude, m, of an earthquake is represented by the equation m=23logee0 where e is the amount of energy released by the earthquake in joules and e0=104.4 is the assigned minimal measure released by an earthquake. which equation could be used to find the amount of energy released by an earthquake with a magnitude of 2.7?
Physics
College
when a molecular orbital has an energy that is higher than the orbitals from which it is formed, we call this a(n) orbital.
Physics
High School
20 kj of heat is added to a cup containing 1-kg of water at 20 c. what is the final temperature of the water? answer in c, and assume water has a specific heat of 4186 j/(kg c). answer in celsius.
Physics
High School
suppose that you want to take a photograph of yourself as you look at your image in a mirror 3.1 m away. for what distance should the camera lens be focused?
Physics
High School
a personal foul occurs when a player has unsportsmanlike conduct, illegal entry or excessive timeouts.a. trueb. false
Physics
College
Find the maximum height and range for vo = 10 m/s, = 30, and dy = 1 m. The displacement dy corresponds to the stage of the projectile flight where it is moving downward. What is the flight time?
Physics
High School
Use the information from the graph to answer thequestion.What is the acceleration of the object?
Physics
High School
what is the band gap energy in kilojoules per mole if blue diamonds absorb orange light with a wavelength of 675 nm?
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