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Find the horizontal (Fx) and vertical (Fy) components of a vector with magnitude 320 N directed 110 degrees counterclockwise from the right horizontal.
Tarzan swings on a 33.00-m-long vine initially inclined at an angle of 37.0° with the vertical. What is his speed at the bottom of the swing:
A raft is made of 10 logs lashed together. Each is 56 cm in diameter and has a length of 6.1 m. How many people can the raft hold before they start getting their feet wet, assuming the average pers
A golfer hits a golf ball eastward from an elevated tee area onto a level fairway below. 1.85 seconds after the ball is hit, it reaches its maximum height. The initial angle of the ball's motion off
A 2.5kg block slides down a 25 degree inclined plane with constant acceleration. The block starts from rest at the top. At the bottom, its velocity us 0.65m/s. The incline is 1.6m long.
A cosmic-ray proton in interstellar space has an energy of 10.0 MeV and executes a circular orbit having a radius equal to that of Mercury's orbit around the Sun (5.80 m). What is the magnetic field
A dynamite blast at a quarry launches a rock straight upward, and 1.6 s later it is rising at a rate of 20 m/s. Assuming air resistance has no effect on the rock, calculate its speed (a) at launch a
Calculate the ratio of the kinetic energy to the potential energy of a simple harmonic oscillator when its displacement is half its amplitude.
Calculate (a) the weight of the satellite on the surface of the Earth and (b) the gravitational force exerted on the satellite by the Earth when it is in orbit.
A 3.0 kg mass is connected to a spring with a spring constant of 6.0 N/m. The velocity is given by the expression v(t) = 10.0 cm/s sin(wt). What is the maximum velocity of the simple harmonic motio
A car of mass 1.8 103 kg is traveling east at a speed of 28 m/s along a horizontal roadway. When its brakes are applied, the car stops in 5.8 s. What is the average horizontal force exerted on the
A stunt man whose mass is 70 kg swings from the end of a 5.0 m long rope along the arc of a vertical circle. Assuming that he starts from rest when the rope is horizontal, find the tensions in the r
How large does the radius R of the dish have to be to achieve an electric field vector amplitude of 0.1 mV/m at the receiver?
An arrow is fired with a speed of 22.0 m/s at a block of Styrofoam resting on a smooth surface. The arrow penetrates a certain distance into the block before coming to rest relative to it. During th
In a double-slit interference experiment, the wavelength is 589 nm, the slit separation is 0.1 mm, and the screen is 30 cm away from the slits. What is the linear distance between adjacent maxima o
Calculate the force of gravity between a newborn baby (mass=3kg) and the planet Mars (mass = 6.4 x 10^23kg) when Marsis at its closest to Earth (distance = 5.6 x 10^10m)
A sailboat runs before the wind with a constant speed of 3.8 in a direction 43 north of west. How far west has the sailboat traveled in 29 ? How far north has the sailboat traveled in 29 ?
A 320-g air track cart traveling at 1.25 m/s collides elastically with a stationary 270-g cart. What is the speed of the center of mass of the two carts?
Compute the potential energy stored in the bow, if the arrow of mass 4.80 10-2 kg leaves the bow with a speed of 32.0 m/s. Assume that mechanical energy is conserved.
A projectile is launched with an initial velocity of 253 m/s, at an angle of 45° above the horizontal. At a certain point, A, in its motion, its velocity angle is 19° above the horizontal. A
A 5.20 102 kg hot-air balloon takes off from rest at the surface of the earth. The nonconservative wind and lift forces take the balloon up, doing +9.70 104 J of work on the balloon in the process.
Choose coordinate systems for the two masses with the positive direction up for mA and down for mB. What is the acceleration of the smaller mass.
A speed skater moving across frictionless ice at 8.9 m/s^2 hits a 5.5 m wide patch of rough ice. She slows steadily, then continues on at 5.9 m/s^2 What is her acceleration on the rough ice?
Sam, whose mass is 60.0 , takes off down a 53.0 high, 12.0 slope on his jet-powered skis. The skis have a thrust of 200 . Sam's speed at the bottom is 38.0. what is the coefficient of kinetic frict
A shopper pushes a cart 27 m south down one aisle and then turns 90.0° west and moves 17 m. He then makes another 90.0° turn and moves 13 m. What is the largest displacement?