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A 1100-kg sports car (including the driver) crosses the rounded top of a hill (radius = 85.0 m) at 23.0 m/s. Determine the normal force exerted by the road on the car
What is the magnitude of the acceleration of a speck of clay on the edge of a potter's wheel turning at 51 rpm (revolutions per minute) if the wheel's diameter is 37 cm
a car traveling at 35m/s runs out of gas while traveling up a 9.0? slope. How far will it coast before starting to roll back down
Planet A and planet B are in circular orbits around a distant star. Planet A is 7.6 times farther from the star than is planet B... What is the ration of their speeds
A tank circuit in a radio transmitter is a series RCL circuit connected to an antenna. Find the minimum inductance of the tank circuit
An initially stationary hovercraft sits on a large lake. At time t=0 it accelerates due north at a rate of 1.2 m/s2 for 10 s, what is the velocity of the hovercraft at time t=40 s
Custom Office Furniture is introducing a new line of executive desks made from a specially selected grade of walnut. Initially, three models- A, B, and C- are to be marketed
Calculate the present value of this annuity at an annual effective interest rate of 8%.
Formulas are equations that have been used so frequently in certain applications that they have become standard. Examples are the simple interest formula, I = PRT, and selling price, S = C + M.
Two tugboats pull a disabled supertanker. Each tug exerts a constant force of 2.00×10^6 km, What is the total work done by the two tugboats on the supertanker
A 5.0-, 0.732- wire is used to support two uniform 235- posts of equal length, What is the frequency of the sound this wire produces
The equations of state for electromagnetic radiation in thermodynamic equilibrium with a cavity of volume V at temperature T are P=a T^4/3 and U=a T^4 V, Find the heat capacity for an isochoric (i.e.,
A supply plane needs to drop a package of food to scientists working on a glacier in Greenland. How far short of the target should it drop the package
The cyclist speeds up to a cadence of 120 (120 rotations per minute) in a surge lasting 30 seconds. What is the magnitude of angular acceleration of the wheel
A cyclist is pedaling at a cadence of 60, so the bicycle wheel make 60 rotations per minute around the axis through its center. What is the wheel's angular speed
A 63kg person rides in a 30kg cart moving at 14m/s at the top of a hill that is in the shape of an arc of a circle with a radius of 30m. What is the apparent weight of the person as the cart passes o
A baseball is hit at 30.0 m/s at an angle of 53.00 above the horizontal. What was the original distance between the outfielder and the batter
A cannon is launched at an angle of 45.00 and the cannon ball lands 301 m away. What was the velocity of the cannon ball
A sledge loaded with bricks has a total mass of 17.1 kg and is pulled at constant speed by a rope inclined at 19.9° above the horizontal. What is the mechanical energy lost due to friction
A cannon is launched at an angle of 45.00 and the cannon ball lands 301 m away. How long was the cannon ball in the air
A cannonball is launched from ground level and lands at ground level. If it is launched with a speed of 76.2 m/s and stays in the air for 6.4 s, What angle was the cannon shot at
A soccer player kicks a ball from ground level with a velocity of 23.5 m/s 38.20 above the horizontal and it lands at ground level. determine the "hang time" of the ball
a snowboarder has a mass of 70 kg and is being carried by a lift. The lift has a constant inclination of 30o, what power must the motor produce to achieve the task
During a particular car crash, it takes just 0.18 sec for the car to come to a complete stop from 50 km/hour. At what rate is the car accelerating during the crash
A pendulum bob with a mass of 0.38 kg is attached to a 1.5 m long string as shown. determine the change in its gravitational potential energy