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A car (mass= 1100 kg) is traveling at 32 m/s when it collides head-on with a sport utiliity vehicle (mass = 2500kg) traveling in the opposite direction. in a collision, the two vehicles come to a ha
Are there any special electromagnic properties that exist around aldabra that could be harested and used for future propolsion systems?
The ladder makes a 50 degree angle with the ground. How far up the ladder can an 800 newton person climb before the ladder begins to slip?
What is the electric potential energy of the system? (Take as zero the potential energy of the three charges when they are infinitely far apart.) Use = 8.85×10-12 for the permittivity of free
he block starts to move down as the spring is compressed. What is the maximum distance the block will travel?
How does the direction and magnitude of the force applied to the projectile by the catapult will affect the distance the projectile travel's and the accuracy of the system as a whole?
What must the charge (sign and magnitude) of a 1.40-g particle be for it to remain stationary when placed in a downward-directed electric field of magnitude 660?
Two positive point charges are 7.05 cm apart. If the electric potential energy is 63.2 mJ, what is the magnitude of the force (in mN) between the two charges?
A 0.30 kg softball has a velocity of 12 m/s at an angle of 35° below the horizontal just before making contact with the bat. The ball leaves the bat 2.0 ms later with a vertical velocity
A flat circular mirror of radius 0.150 m is lying on the floor. Centered above the mirror, at a height of 0.870 m, is a light source. Calculate the diameter of the bright circular spot formed on th
Show that the buoy will execute simple harmonic motion if the resistive effects of the water are neglected. (Do this on paper.
A 35.0-cm-diameter circular loop is rotated in a uniform electric field until the position of maximum electric flux is found. The flux in this position is measured to be 5.24 10^5 N · m2/C.
An electron is scattered with a speed of 4.5x107m/s at an angle of 60°. Determine the wavelength of the X-ray source.
A loudspeaker of mass 17.0 {rm kg} is suspended a distance of h = 1.80 {rm m} below the ceiling by two cables that make equal angles with the ceiling. Each cable has a length of l = 2.70 {rm m}. Wha
A typical American house requires an average 20 kW for heating. How many homes could be heated with the waste heat of this one power plant?
A small circular hole 6.00 mm in diameter is cut in the side of a large water tank, 14.0 m below the water level in the tank. The top of the tank is open to the air. What is the volume dischar
A grating with 633 slits/cm is illuminated with light of wavelength 419 nm. What is the highest-order number that can be observed with this grating?
You discover a binary star system in which one member is a15MSun main-sequence star and the other star is a 10MSun giant. How do we believe that a star system such as this might have come to exist?
On one particular shot, his 1.0 g pellet gets stuck in the cheese, causing it to slide 25 cm before coming to a stop. If the muzzle velocity of the gun is 64 m/s and the cheese has a mass of 98 g, w
A spring with spring constant 11 N/m hangs from the ceiling. A ball is attached to the spring and allowed to come to rest. It is then pulled down 9.0 cm and released. The ball makes 40 oscillations
The hinge applies a force to the left end of the beam that has a horizontal component H and a vertical component V. Find the magnitudes of these three forces.
A skier with mass of 80.0 kg starts from rest and skis down a slop from an elevation of 110.0 m. The speed of the skier at the bottom of the slope is 20.0 m/s. How much work is done by the nonconser
A car travels along a highway with a velocity of 24 m/s, west. The car exits the highway and 4.0 s later,its instantaneous velocity is 16m/s,45 north. what is the magnitude of the average acclerati
A uniform electric field of magnitude 390 N/C pointing in the positive x-direction acts on an electron, which is initially at rest. The electron has moved 3.10 cm. What is the work done by the field
An ice skater with a mass of 80kg pushes off against a second skater with a mass of 32kg. both skaters are initially at rest. what is the total momentum of the system after the push off?