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If a 2000kg coaster is moving at 10 m/s on the top of the loop, what is the magnitude of the normal force that the track applies
1. 7 answers
2. asked by tyger2020
3. 1,239 views
Twins who are 19.0 years of age leave the earth and travel to a distant planet 12.0 light-years away. Assume that the planet and
1. 4 answers
2. asked by Jim
3. 1,909 views
The space shuttle orbits at a distance of 335 km above the surface of the Earth. What is the gravitational force (in N) on a 1.0
1. 4 answers
2. asked by ...
3. 2,294 views
You are a 70kg astronaut floating at rest in zero gravity holding your laptop. Your hard drive turns on (increasing from 0 to
1. 2 answers
2. asked by anonymous
3. 658 views
In a physics lab experiment, a student immersed 205 one-cent coins (each having a mass of 3.00 g *.003kg) in boiling water.
1. 3 answers
2. asked by Tia
3. 552 views
A 40-kg child is standing still on a 10-kg skateboard, which is also at rest. If the child walks to the right at 2 m/s, what is
1. 3 answers
2. asked by Deb
3. 706 views
The drawing shows a collision between two pucks on an air-hockey table. Puck A has a mass of 0.030 kg and is moving along the x
1. 2 answers
2. asked by joseph
3. 896 views
A middle C (262 Hz) on a flute is heard when an air column that is 0.63 meters long resonates at zero Celsius.a.How fast will
1. 1 answer
2. asked by Sallias
3. 449 views
A 13.2 gm bullet is fired into a 12.0 kg wood block that is at rest on a wood table. The block, with the embedded bullet, slides
1. 1 answer
2. asked by Iamdumb
3. 418 views
You are the science officer on a visit to a distant solar system. Prior to landing on a planet you measure its diameter to be
1. 3 answers
2. asked by Me
3. 2,824 views
suppose you have 2 cars, and the larger one is twice as massive as the smaller one. If you and a friend push on them so that
1. 4 answers
2. asked by Kristin
3. 828 views
You are the science officer on a visit to a distant solar system. Prior to landing on a planet you measure its diameter to be
1. 3 answers
2. asked by Me
3. 718 views
While visiting Planet Physics, you toss a rock straight up at 13.6 m/s and catch it 3.50 s later. While you visit the surface,
1. 2 answers
2. asked by Me
3. 693 views
An oscillator with a mass of 281 g has a speed of 119.1 cm/s when its displacement is 2.80 cm and 34.2 cm/s when its
1. 1 answer
2. asked by Me
3. 407 views
A crate is dragged 5.0 along a rough floor with a constant velocity by a worker applying a force of 125N to a rope at an angle
1. 3 answers
2. asked by K
3. 852 views
A gamma ray with 700KeV energy is Compton-Scattered from an electron. Find the energy of the photon scattered at 110 degrees,
1. 2 answers
2. asked by Sarah
3. 699 views
A gamma ray with 700KeV energy is Compton-Scattered from an electron. Find the energy of the photon scattered at 110 degrees,
1. 2 answers
2. asked by Sarah
3. 524 views
A student swims at 4m/s. She is swimming from west to east across a river that's is flowing 2.2m/s [S].A) if the river is 100 m
1. 1 answer
2. asked by Ella
3. 724 views
Rutherford ScatteringCalculate the impact parameter for scattering a 7.7 MeV alpha particle from gold at an angle of (a) 1
1. 4 answers
2. asked by Sarah
3. 1,476 views
In an experiment done by scattering 5.5 MeV α particleson a thin gold foil, students find that 10,000 α particles arescattered
1. 2 answers
2. asked by Sarah
3. 493 views
Calculate the allowed wavelengths for the emission of a photon initially in the n=3 state in a hydrogen atom
1. 3 answers
2. asked by Sarah
3. 455 views
The lowest possible energy for a certain positively charged particle trapped in a box is 2.00 eV. (a) What are the next two
1. 2 answers
2. asked by Sarah
3. 499 views
A blacksmith at a historical reenactment is making an iron hinge. after placing the iron (0.750 kg) in the fire and shaping it
1. 2 answers
2. asked by Kimberly
3. 523 views
A 0.504 m length of conducting wire carrying a current of 62.1 A is?
1. 1 answer
2. asked by alex
3. 347 views
excited by the in class experiments you put two speakers in your living room 80cm apart producing a sound of 750Hz. 4.0 m away
1. 1 answer
2. asked by Naida
3. 433 views
While punting a football, a kicker rotates his leg about the hip joint. The moment of inertia of the leg is 3.75 kg/m2 and its
1. 4 answers
2. asked by tyger2020
3. 2,677 views

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