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A car of mass m=1350 kg is parked on a slope of angle =41.0o facing uphill. Calculate the normal force exerted by the road on the front and rear wheels.
A plane is headed due west with an air speed of 224 m/s. The wind blows south at 15.0 m/s. Find the velocity of the plane relative to the earth.
A harmonic wave is traveling along a rope. The oscillator that generates the wave completes 43.0 vibrations in 28.5s. A given crest of the wave travels 410cm along the rope in a time period of 11.4s
A golf ball is struck with a five iron on level ground. It lands 95.8 m away 4.05 s later. What was the direction of the initial velocity? Give the angle counterclockwise relative to the horizontal
You throw a snowball at an angle of 30.0° below the horizontal from the roof of a building that is 95.0 m above flat ground. The snowball hits the ground a distance of 45.0 m from the base of t
A 1.5 kg box moves back and forth on a horizontal frictionless surface between two springs. By how much will the box compress the weaker spring?
If he shot a dart at an antelope at rest 50 m away, and the antelope instantly began to accelerate at a constant rate away from the dart, running out of range of the dart just in time. Find the mini
How much charge resides on the outer surface? (b) If the charge in part (a) is due to K+ ions (charge +e), how many such ions are present on the outer surface?
A submarine dives 110m at and angle of 10.0 degrees below the horizontal. What are the horizontal and vertical components of the submarine's displacement?
There are 460 moles of this gas in a volume of 43.5 m3. Find the translational rms speed of the sulfur dioxide molecules.
A car traveling at 87 km/h strikes a tree. The front of the car compresses and the driver comes to rest after traveling 0.83 m. What was the average acceleration of the driver during the collision?
Car 1 started at rest and coasted toward the intersection from the top of a 50-meter hill. What was the potential energy of each car at the beginning of the problem.
At 20°C, a rod is exactly 20.03 cm long on a steel ruler. Both the rod and the ruler are placed in an oven at 267°C, where the rod now measures 20.21 cm on the same ruler. What is the coeff
A gun is fired vertically into a 1.20 kg block of wood at rest directly above it. If the bullet has a mass of 21.0 g and a speed of 235 m/s, how high will the block rise into the air after the bulle
What is the final temperature when .032 kg of milk at 11 degrees celius is added to .16 kg of coffee at 91 degree celius? assume the specific heat capacities of the two liquids are the same as water
A uniform, upward-directed electric field E of magnitude 2.00 x10^3 N/C has been set up between two horizontal plates by charging the lower plate. how far horizontally from the left edge will the el
a 400g glass coffee cup is at room temperature, 20 C. It is then plunged into hot dishwater at 80 c. If the temperature of the cup reaches that of the dishwater how much heat does the cup absorb. As
A person pulls a toboggan for a distance of 38.1 m along the snow with a rope directed 29.9 ° above the snow. The tension in the rope is 109 N. (a) How much work is done on the toboggan by the t
Two narrow slits separated by 1 mm are illuminated by light of wavelength 640 nm, and the interference pattern is viewed on a screen 1.7 m away. Calculate the number of bright fringes per centimeter
When a massive star dies, gravity causes its radius to contract quickly from the size of a giant star (R_i= 8.0x10^8m). find the final rotation period of the neutron star.
A 9.0 g bullet is fired into a 12 kg wood block that is at rest on a wood table. The block, with the bullet embedded, slides 5.0 {rm cm} across the table. The coefficient of kinetic friction for woo
A rectangular loop is located in a uniform magnetic field of magnitude 0.34 T directed perpendicular to the plane of the coil. If the area of the coil increases at the rate of 5.1 10-3 m2/s, what i
What tangential speed v must the bob have so that it moves in a horizontal circle with the string making an angle 19.0^circ with the vertical?
A particle is initially moving along the positive x-axis at a speed of 9.40 m/s. After 1.50 s, the particle is moving along the negative y-axis at a speed of 5.38 m/s. Find the x and y components o
A boy whirls a stone in a horizontal circle of radius 1.7 m and at height 2.0 m above ground level. The string breaks, and the stone flies horizontally and strikes the ground after traveling a horiz