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Physics Questions
A singly ionized helium atom is in the ground state. It absorbs energy and makes a...
How fast must an object be going if its rest length is 3.4 times as long...
The Σ− Particle The Σ− is an exotic particle that has a lifetime (when at rest)...
A steel wire in a piano has a length of 0.5000 m and a mass of...
1) a)You are asked to find the initial velocity of a steel ball from a spring...
A car drives north at 30 mi/h for 10 min and then turns east and goes...
A speedboat increases its speed uniformly from 20 m/s to 26 m/s in a distance of...
A clock pendulum oscillates at a frequency of 2.5 Hz . At t=0, it is released...
a 10 kg disk (I+1/2R^2) starts to roll w/o slipping down a 5m tall incline. what...
An empty coal car (mass mc=22,000.kg) of a train coasts along at 8.0ms. An elephant, me=2500.kg...
The blood pressure at your heart is approximately 100 mm of Hg. As blood is pumped...
A 61 kg box sits at the bottom of a ramp inclined at 35*; the rough...
A car going 5 m/s accelerates at 2 m/s^2 for 3 seconds. Then he travels at...
A guitar string is 80 cm long and has a mass of 3.6 g. The distance...
A football is kicked 67.3 meters. If the ball is in the air 5.37s, with what...
An unknown element emits ?? X rays of 0.1940 nm. a) What is the element? b)...
In a single-slit diffraction pattern on a flat screen, the central bright fringe is 1.6 cm...
At a carnival, you can try to ring a bell by striking a target with a...
A 3.7 cm -thick layer of oil is sandwiched between a 1.2 cm -thick sheet of...
The Gravitron ride at the local fair is a saucer-shaped ride that spins in a circle...
QUESTION 1: A fireworks shell is accelerated from rest to a velocity of 55.0 m/s over...
An accelerating voltage of 2.50 3 103 V is applied to an Q/C electron gun, producing...
An electron moves with velocity v⃗ =(6.5i−5.2j)×10^4m/sin a magnetic field B⃗ =(−0.87i+0.65j)T. Determine the z-component of...
Water with pressure of 190 kPa flows down hill through a pipe with a 3.90 cm...
A 5-kg sled is sliding on a horizontal rough surface with a speed of 18 m/s....
An oscillator vibrates at 1250 Hz and produces a sound wave that travels through an ideal...
uestion 5 (1 point) Saved The volume of a gas is _____ to temperature if the...
From the top of a hill, a rock is thrown with an initial velocity of 107ft/s...
The position ?, in meters, of an object moving along the ?-axis is given as a...
Dolphins of the open ocean are classified as Type II Odontocetes (toothed whales). These animals use...
You are watching an archery tournament when you start wondering how fast an arrow is shot...
How far must a 2.0-cm-diameter piston be pushed down into one cylinder of a hydraulic lift...
A bullet is fired horizontally with a speed of 30m/s from the top of a cliff...
Light of intensity 2 μW.cm-2 is incident on an iron sample of area 4 cm 2...
You are standing 2.50 m directly in front of one of the two loudspeakers shown in...
The allowed energies of a simple atom are 0.00 eV, 4.08 eV , and 6.17 eV...
For astronomy class, please answer this question clearly, thank you. Briefly describe the discoveries that led...
Saline solution is delivered into a patient’s vein through a needle. The saline solution has a...
You need to use your metabolic rate in watts as calculate early( MR, or heat energy...
what is the gravational force and columbic force in newton units if you have two electrons...
Two forces, F⃗ 1 and F⃗ 2, act at a point. F⃗ 1 has a magnitude...
A 0.02kg ball moving to the right at 0.25 m/s makes an elastic head-on collision with...
A 29.0 g ball is fired horizontally with initial speed v0 toward a 110 gball that...
How fast should you fly to a planet 50 light years away if you want to...
A hiker can guess the height of a cliff by letting a rock fall from it...
What the fluid equivalents for mass and energy? (one of the answers is fluid density)
Copper and aluminum are being considered for a high-voltage transmission line that must carry a current...
Light travels from material #1 with refractive index n1 and incidence angle θ1 into material #2...
Consider a cannon on top of a cliff of height h = 60 m located at...
A 40.61-kg skier with an initial speed of vi=45.68 m/s coasts up a H=12.87-m-high rise as...
A 298 g air-track glider is attached to a spring. The glider is pushed in 10.21...
If the ice on the south pole melted and was distributed evenly over the Earth's sea,...
Determine the muon-lepton number in the reaction μ− → e− + νe + νμ.
The density of gasoline is 730 kg/m3 at 0oC. Its volume expansion coefficient is 9.60E-4oC-1. If...
Three capacitors C1 = 11.8 µF, C2 = 23.0 µF, and C3 = 28.9 µF are...
A converging lens with a focal length of 40 cm and a diverging lens with a...
A 29 kg piece of zinc at 68◦C is placed in a container of water. The water...
in real life, drag forces will affect oscillators. in these cases what happens to the mechanical...
A woman at an airport is towing her 10kg suitcase at constant speed by pulling on...
A capacitor that is initially uncharged is connected in series with a resistor and a 407.1...
Q 21: The dielectric strength of air is 3×106V/m. As you walk across a synthetic rug,...
A roller coaster with mass (m=2500kg) has a speed of 10 m/s as it goes over...
Find the momentum ? and Lorentz factor ? for an electron that has a kinetic energy...
A meter stick is held vertically above your hand, with the lower end between your thumb...
A mass m slides up an incline (with \theta\:θ= 30.34 degrees above the horizontal) until it...
A 100-kg block slides up or down a frictionless inclined plane that makes an angle of...
A particle of diameter 0.2 μmand density 1 g cm-3is being carried by an airstream at...
Adjacent antinodes of a standing wave of a string are 20.0 cm apart. A particle at...
A proton and an electron are fixed in space with a separation of 979 nm. a....
A gas of helium atoms (each of mass 6.65×10−27kg) is at room temperature of 7.1°C. What...
A toy rocket engine is securely fastened to a large puck that can glide with negligible...
At an amusement park there is a ride in which cylindrically shaped chambers spin around a...
A uniform disk of radius 0.2 m and mass m = 16 kg is mounted on...
An explosion breaks a 26.0-kg object into three parts. The object is initially moving at a...
after three half lives of sn isotope , 1 billion of the original isotopes Adams still...
The Vikings of the tribe of Hrothgar the Pretty Good (son of Hrothgar the Great) have...
A 1.4 kg block slides along a frictionless surface at 1.1 m/s . A second block,...
A boy shoves his stuffed toy zebra down a frictionless chute. It starts at a height...
A metallic coin is given a positive electric charge. What happens to its mass?
A solid disk with a c value of 1/2, mass of 3 kg, and radius of...
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