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Physics
Physics
High School
the sun and the rest of the solar system formed about 5 billion years ago from a huge cloud of dust and gas called a .
Physics
High School
why the efficiency of the system cannot be 100%
Physics
High School
consider the three parallel plate capacitors shown in figure. all three have an identical plate area and plate separation. capacitor a is air filled. capacitors b and c have their gaps half filled with a dielectric material as shown. which arrangement can store the maximum energy for a given potential difference applied?
Physics
College
OBJECT A 24 lb. turkey on Saturn UNIVERSAL GRAVITATION CONSTANT-G 6.673x10 M = mass of planet (in kg) -11 Nm 5.683x106 kg kg 26 M= object (in kg) = mass of d = distance between the center of 2 objects (in m) (sometimes we use "r" for radius) 58,232 km SHOW WORK F, gray = force due to gravity (in N)
Physics
College
4.A skier with a mass of 55 kg is skiing down a snowy slope that has an incline of 30. Find the coefficient of kinetic friction for the skier if friction is known to be 25 N.
Physics
High School
a smooth metal plate with a surface area of 380 cm2 is traveling in water at a velocity of 6.3 m/s, with the flow parallel to the long dimension of the surface. if the reynolds number at the trailing edge of the plate is 950,000, what is the friction drag acting on the surface of the plate?
Physics
High School
The load across a battery consists of two resistors, with values of 15 and 47 , connected in series. What is the equivalent resistance of the load?
Physics
College
IP An expectant father paces back and forth, producing the position-versus-time graph shown in the figureCalculate the numerical value of the father's velocity for segment C(part a)Calculate the numerical value of the father's velocity for segment D.(part b)
Physics
High School
what is the charge configuration that makes that would produce this electric potential? is it a point charge? line charge? circular charge? or some sort of combination of different kinds of charge?
Physics
Middle School
A toy train has a mass of 1.5 kg. A force of 3.0 N is acting on the train. What is the acceleration of the train?a) 0.5 m/sb) 4.5 m/sc) 2.0 m/sd) 1.5 m/s
Physics
High School
A light with a wavelength of 650 nm is made to pass through two slits that are 1.5E 3 m apart. On a screen 6 m behind the slits, an interference pattern appears, with bands of light. What is the distance between the bands? Group of answer choices 3.2 E3 m 2.6 E3 m 1.5 E3 m 3.9 E3 m
Physics
High School
a simple bob pendulum has a length of 1.05 meters. what would be the period of the pendulum on earth were the acceleration do to gravity is 9.81m/s2?
Physics
High School
looking through a particular lens, a student notices a magnified image as shown below. based on the measurements depicted in the figure, what is the focal length of this lens?
Physics
High School
Based on what you learned about telescopes, select all of the correct statements from the following list.- The diameter of a telescope controls its magnification. - Recently built modern telescopes are reflectors. - Telescopes linked together as an interferometer have an effective size equal to the size of the telescopes added together. - The largest telescopes are refractors. - Chromatic aberration limits the useful size of any type of telescope
Physics
High School
suppose that 18 j of work is needed to stretch a spring from its natural length of 6 m to a length of 9 m. (a) how much work is needed to stretch the spring from 12 m to 14 m?
Physics
College
For an ASTM grain size number of 8.8, calculate the number of grains per square meter in the two following cases. Round your answers to three significant figures. a) At a magnification of 100 N = ____grains/m2b) With no magnification N =____ 10^4 grains/m2
Physics
High School
what is the angle between a wire carrying an 8.00-a current and the 1.20-t field it is in if 50.0 cm of the wire experiences a magnetic force of 2.40 n?
Physics
College
What is the mass of a car possessing 15,000 kg*m/s of momentum going a speed of 35 m/s?A.525000 kgB.428.6 kgC.14965 kgD.0.0023 kg
Physics
High School
The max power of an elevator is 10,000 j/s. how much time would it take the elevator to lift 500 kg 40 meters?
Physics
High School
Why are the seasons reversed in the southern hemisphere?
Physics
Middle School
Help quick !!!!!!!!!!You are given a bowl of water and a rubber duck. A wave passes through the bowl of water. How could you determine if a transverse wave passed through the water using the rubber duck? Explain.
Physics
College
A truck moving across an ice road is spreading sand across the ice. The truck can be considered a closed, isolated system. Which of the following is true? * a. The mass of the truck decreases with no change in the velocity of the truck b.The mass of the truck decreases while the velocity of the truck increases. C.The mass of the truck decreases while the velocity of the truck decreases. D. The mass of the truck remains the same while the velocity of the truck remains the same.
Physics
College
Suppose that the two speakers in the figure below are separated by 2.50 m and are vibrating exactly out of phase at a frequency of 429Hz. The speed of sound is 343 m/s. Does the observer at C observe constructive or destructive interfernce when his distance fromspeaker B is (a) 1.15 m and (b) 2.00 m?
Physics
High School
I need help in this please
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