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A 2500 kg truck travelling north at43 km/h turns east and accelerates to 56 km/h.
1. What is the change in the truck's kinetic energy?
2. What is the magnitude of the change in the linear momentum of the truck?
3. What is the direction of the change in the linear momentum of the truck?
A conventional mercury thermometer consists of a thin glass capillary filled with mercury. The capillary is enclosed in a protective glass cylinder. These mercury thermometer can be quite sensitive and very precise.
The total kinetic energy in one mole of nitrogen is 4,000 J. what is the root mean-square velocity of an individual particle in the ideal gas
A bicyclist is coasting down a hill with a slope of 8 deg into a head wind of 5 m/sec (measured relative to the ground). The bicycle + rider mass is 80 kg and the coefficient of rolling friction is 0.02. Assuming that the frontal area is about 0.5 m2..
a. kc 8.98755 x 102 nm2c2 and the charge on a proton is 1.60218 x 10-19 c. find the potential 1.08 cm from a proton.b.
The crankshaft in a race car goes from rest to 3540{\rm rpm} in 3.0{\rm s}. What is the crankshaft's angular acceleration
A positively charged particle moves in the positive z-direction. The magnetic force on the particle is in the positive y-direction. What can you conclude about the x-component of the magnetic field at the particle’s position? A. Bx > 0 B. Bx = 0 C. B..
a .450 kg bead slides on astraight frictionless wire with a velocity of 3.50 cm/s to the right. find the distance the larger bead moves along the wire in the first 9seconds after the collision
two billiard balls of equal mass undergo a perfectly elastic head-on collision.if one balls initial speed was 1.80ms
an ice chest at a beach party contains 12 cans of soda at 4.50 degc. each can of soda has a mass of 0.35 kg and a
Consider the lead isotope 207Pb. How many electrons are in a 207Pb neutral atom? How many protons are in a 207Pb neutral atom? How many neutrons are in a 207Pb neutral atom? The lead nucleus has a diameter of 14.2 fm. What is the electric potential..
The rock strikes the ground a horizontal distance of 44 m from the base of the building. Assume that the ground is level and that the side of the building is vertical. How long did the rock take to hit the ground? Give your answer in seconds to two d..
The angular speed can be represented as ? = (rad/s)(1 rev/2p rad) = 2.53e7 rev/s. The electrons travel around a circle of radius .07m, 25 million times per second. What is the period of revolution of the electrons
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