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Heather in her Corvette accelerates at the rate of (3.20i - 2.00j) m/s2, while Jill in her Jaguar accelerates at (1.00i + 3.20j) m/s2. They both start from rest at the origin of an xy coordinate system. Determine the following after 3.00 s.
(a) What is Heather's speed with respect to Jill?
________m/s
(b) How far apart are Heather and Jill?
________m
(c) What is Heather's acceleration relative to Jill?
( i+ j) m/s2
An electron and a proton each have a thermal kinetic energy of 3×kBT/2. Compute the de Broglie wavelength of each particle at the temperature of 2050 K. (kb is Boltzmann's constant, 1.38×10-23 J/K).
A charged particle enters a uniform magnetic field and follows the circular path shown in the drawing. Determine the mass of the particle
a force of 1250 N is used to push a piano up a ramp 12 m long to a height of 1.5 m above the ground. the piano weighs 7500 N. what is the work input and output
A very long solenoid of circular cross section with radius R = 4.0 cm, is centered on, and has its length parallel to, the z axis. What direction is the force on the proton
you are bowling and have one pin left standing. you roll the 10kg bowling ball at a velocity of 1 m s into the 1kg pin
What is the childs total mechanical energy. If the speed of the child at the lowest position is 2.00 m/s, what is the change in mechanical energy due to friction.
Three spheres, each with a negative charge of 4.0 X 10^-6 C, are fixed at the vertices of an equilateral triangle whose sides are 0.20 m long. Compute the magnitude and direction of the net force on each sphere.
When two identical ions are separated by a distance of 5.9 10-10 m, the electrostatic force each exerts on the other is 6.0 10-9 N. Evaluate how many electrons are missing from each ion?
A 6V battery is connected in series with a 1.5V flashlight. what possible terminal voltages are available
The wavelength of light from a monochromatic source is measured to be 6.80 X 10^-7 m. What color would you observe
Delivery trucks that operate by making use of energy stored in a rotating flywheel have been used in Europe. What is the kinetic energy of the flywheel after charging
A bar AB of negligible mass and length 2 m balanced at its midpoint a 4 kg and 5 kg masses are suspended from both ends. A 4 kg mass is 0.4m away from the midpoint. At what point the mass of 5 kg is suspended to a bar keep the balance.
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