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Question
A professional race-car driver buys a car which can accelerate at 89.0 m/s2. The racer decides to race beside another driver in a souped-up stock car. Both start from rest, other than the stock-car driver leaves 1.0 s before driver of the sports car. The stock car moves with a constant acceleration of 28.0 m/s2.
(a) Discover time it takes the sports-car driver to overtake the stock-car driver.
(b) Find out distance the two drivers travel before they are side by side.
(c) Locate velocities of both cars at the instant they are side by si
Consider two vectors where F_1= 84 N, F_2 = 46 N, theta_1= 5 degrees, and theta_2 = 144 degrees, measured from the positive x axis with the counter-clockwise angular direction as positive. What is the magnitude of the resultant vector F = F_1 + F_..
On a sphere with radius a there is an electric charche sigma=sigmazero*cos(theta). Determine the electrostatic potential for all points on the z-axis. (solve with integral over R^3 dV* chargedistribution* Greensfunction).
The National Museum of Photography, Film & Television, in England, has a huge converging lens with a diameter of 1.37 m and a focal length of 8.45 m. What is the image magnification
Suppose you lower the object a distance 0.246 m (in the same direction the field is pointing). What is the work done by the electrical force
if you hold a 40 cm high square plane mirror 45 cm from your eyes, how far are you from the pole
A bullet with mass m = 5.21 g is moving horizontally with a speed v = 373 m/s when it strikes a block of hardened steel with mass M = 14.8 kg, What was the change in kinetic energy (J) of the bullet
A child goes down a playground slide with an acceleration of 1.40. Find out the coefficient of kinetic friction between the child and the slide if the slide is inclined at an angle of 31.0 below the horizontal.
What is the total energy of a 15-kg mass attached to a spring oscillating horizontally with an amplitude of 20 cm and an angular frequency of 32 rad/s
The reactance of a capacitor is 2.5 k? at a frequency of 1.5 kHz. What is the capacitance in nano-farads
Blocks A (mass 7.00kg ) and B (mass 10.00kg ) move on a frictionless, horizontal surface. Find the maximum energy stored in the spring bumpers and the velocity of each block at that time. Find the maximum energy
A Beryllium nucleus consists of 4 protons and 5 neutrons. What is the potential energy of the nucleus due to electrical forces
Calculate its average velocity for the entire trip. A horse canters away from its trainer in a straight line, moving 120 m away in 15.0 s. It then turns abruptly and gallops halfway back in 5 s.
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