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If the speed limit is 60 mph, was Car A speeding?
Road: new, wet asphalt
Car A (with a mass of 2500 kg) collides with Car B (with a mass of 1500 kg) on wet asphalt. Car A skidded 50 m before the collision. Car B, which was initially at rest, is bumped 20 m while Car A continues 10 m after the impact. Find the initial speed of Car to determine whether or not its driver was speeding.
A photon (or particle of light) has a frequency of 2.80 x 105 Hertz. Evaluate what is the energy of the particle
You set two parallel slits 0.2 mm apart at a distance of 1 m from a screen and illuminate them with light of wavelength 400 nm. Find the distance between the first and second dark lines of the interference pattern on the screen
In a movie, Tarzan evades his captors by hiding underwater for many minutes while breathing through a long, thin reed. calculate the deepest he could have been
q1. a 60kg ball of clay is thrown horizontally at 40 ms toward a 1.6kg block sitting at rest on a frictionless hi
Atomic physicists usually ignore the effect of gravity within an atom. To see why, we may calculate and compare the magnitude of the ratio of the electrical force and gravitational force, Fe/ Fg, between an electron and a proton separated by a dis..
A projectile is shot directly away from Earth's surface. Neglect the rotation of the Earth. What multiple of Earth's radius RE gives the radial distance (from the Earth's center) the projectile reaches if its initial speed is 0.498 of the escape spee..
An object is released from rest and falls in free fall motion. The speed v of the object after it has fallen a distance y is given by v2 = 2gy. What is the percent uncertainty in the calculated value of g
The constant of ammonia in water at 25 degrees Celsius is 450000 mg/L. The constant of oxygen in water at 25 degree Celsius is 40 mg/L.
When you are lying horizontally, these muscles make an angle of approximately 5.00 with the femur, and if you raise your legs, With his leg raised to 60.0, find the tension in the abdominal muscle on each leg
why not use sodium (which produces yellow light) and coat the tube with phosphors to make white light?
Write an eassy on Description of Motion and Newton's aThreelaws of Motion and Terminal Velocity.
What is the translational speed of the object. What is the frequency. As the object passes through the lowest point in its motion, what is the direction of the acceleration of the object
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