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Your roommate is working on his bicycle and has the bike upside down. He spins the 66.0cm -diameter wheel, Find the pebbles speed and acceleration
A stunt man drives a car at a speed of 20m/s off a 30-m-high cliff, How far from the base of the cliff does the car land and What is the car's impact speed
A ball is thrown toward a cliff of height h with a speed of 30m/s and an angle of 60? above horizontal, What was the maximum height of the ball
A slide projector needs to create a 86 cm high image of a 2.0 cm tall slide, What focal length does the lens need and How far should you place the lens from the slide
Over a time interval of 2.16 years, the velocity of a planet orbiting a distant star reverses direction, Find the total change in the planet's velocity in m/s
A resistor is connected across the terminals of a 9 V battery, which delivers 1.27E+5 J of energy to the resistor in 8.00 hours
A baseball player hits the ball and it lands in the field seat 10 m above the point, find the c and y components of the initial velocity vector of the baseball
A sealed container of volume 0.10 m^3 holds a sample of 3.0 x 10^24 atoms of helium gas in equilibrium, Calculate the temperature and pressure of the helium gas
Consider a 0.200kg pendulum bob that is in an upright circular cylinder with a 0.0193 diameter, Draw a free body diagram and calculate the tension and the centripital acceleration at the bottom of the
A 128-cm-long pipe is stopped at one end. Near the open end, there is a loudspeaker that is driven by an audio oscillator, What is the lowest frequency of the oscillator that will produce resonance wi
A coin is tossed upward with an initial speed of 7.5 m/s2, What is the total time it is in the air before returning yo it's releasing point
You are walking around your neighborhood and you see a child on top of a roof of a building kick a soccer ball, How tall is the building that the child is standing on
A body is placed on a plane that is incline at an angle of 35degrees to the horizontal, Determine the component of mg parallel to the surface
A squirrel has x- and y-coordinates ( 1.4m , 3.3m ) at time t1=0 and coordinates ( 4.8m , -0.40m ) at time t2 = 2.7s, Find the magnitude of the average velocity
Two cars are 1.35km apat and starting com rest mov directly toward each other. Car a has an acceleration of .37 m/s2 and car b has acceleration of .52 ms2
A closed box has two metal terminals a and b. The inside of the box contains an unknown emf emf in series with a resistance R, Find the emf and R
Vector a has a magnitude of 15 units and points die east. Vector b points due south. What is the magnitude of b if a-b has a magnitude of 25 units
Two point charges are placed along a horizontal axis with the following values and positions: +1 µC at x = 0 cm, At what point (the coordinate) along the x axis is the electric field zero
Three resistors, R1 = 30? , R2 = 71? , and R3=R, are connected in parallel with a 12Vbattery, Find the value of resistance R and currenrt through each resistor
a man stands on the roof of a building of height 16.1m and throws a rock with a velocity of magnitude 26.8 m/s, Calculate the maximum height above the roof reached by the rock
Three resistors, R1 = 17? , R2 = 52? , and R3=R, are connected in series with a 24.0 Vbattery, find the potential difference across each resistor
A proton is released from rest inside a region of constant, uniform electric field E1 pointing due North. 27.3 seconds after it is released, What is the ratio of the magnitude of E2 to the magnitude
An electric dipole with dipole moment P=(3.24 i + 4.30 j)(1.56 x 10^-30 C*m) is in an electric field E=(4055 N/C) i, What is the potential energy of the electric dipole
Consider the glass prism in the figure below, for which ? = 22° and ? = 68°. What is the smallest angle ?1 for which a laser beam will undergo total internal reflection