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A 63 kg swimmer jumps off a 9.5 m tower. Find the swimmer's velocity on hitting the water.
When the chimney makes an angle of θ = 33.7o with the vertical, find , the magnitude of the angular acceleration of the center of mass of the chimney.
A projectile is fired vertically from Earth's surface with an initial speed of 6.8 km/s. Neglecting atmospheric friction, how far above the surface of Earth will it go?
A ranger in a national park is driving at 45 km/h when a deer jumps onto the road 58 m ahead of the vehicle. After a reaction time of t s, the ranger applies the brakes to produce an acceleration o
An 79-kg stuntman jumps from a window of a building situated 33 m above a catching net. Assuming that air resistancem exerts a 100-N force on the stuntman as he falls, determine his velocity just b
An object is located 4.0 cm to the left of the lens that is on the left. Determine the final image distance relative to the lens on the right. in cm
You're driving down the highway late one night at 20 m/s when a deer steps onto the road 42m in front of you. Your reaction time before stepping on the brakes is 0.50 , and the maximum deceleration
A small glass bead has been charged to + 20.0 nC. A metal ball bearing 3.00 cm above the bead feels a 1.20102 N downward electric force. What is the charge on the ball bearing?
A camera is equipped with a lens with a focal length of 30cm. When an object 2m (200cm) away is being photographed; how far from the field should the lens be placed? What is the magnification?
Which of the following statement regarding moment of inertia is correct? a. similar to segment mass, segment moment of inertia is a constant.. b. moment of inertia also plays a role in linear kinetics
A dentist's drill starts from rest. After 3.30 s of constant angular acceleration it turns at a rate of 2.6 104 rev/min. Determine the angle (in radians) through which the drill rotates during this pe
A jogger runs 102 m due west, then changes direction for the second leg of her run. At the end of the run, she is 302 m away from the starting point at an angle of 42o north of west. What were the
A car is driven 30 km west and then 80 km southwest. What is the displacement of the car from the point of origin
On a cello, the string with the largest linear density (1.54 10-2 kg/m) is the C string. This string produces a fundamental frequency of 65.4 Hz and has a length of 0.795 m between the two fixed en
A car of mass M = 800 kg traveling at 50.0 km/hour enters a banked turn covered with ice. The road is banked at an angle 20 degrees, and there is no friction between the road and the car's tires.
Draw a diagram showing the relative orientation of the magnetic dipoles m1 and m2 of the two magnets. Then find the force between them as a function of distance h.
The pilot of an aircraft wishes to fly due west in a 57.0 km/h wind blowing toward the south. The speed of the aircraft relative to the air is 200 km/h. In what direction should the aircraft head?
A mass (m1 = 5.00 kg) is connected by a light cord passing over apulley to a mass (m2 = 4.00 kg) which slides on a smooth horizontal surface. The pulley (radius = 0.200m) rotates about a frictionless
A car carrying a 80-{rm kg} test dummy crashes into a wall at 28 m/s and is brought to rest in 0.10 {rm s}. Find the average force exerted by the seat belt on the dummy.
A football player runs directly down the field for 42 mbefore turning to the right at an angle of 35 from his original direction and running an additional 14 m before being tackled.
In a one-dimensional elastic collision a ball of mass 0.52 kg, moving with velocity 5.2 m/s, strikes an initially stationary ball of mass 0.81 kg. Find the final velocity of the initially moving ba
The radar system at an airport broadcasts 11 GHz with 150 kW. What is the electric field strength of the microwave signal received back at the airport 160mu.seconds later?
A 4-kg projectile travels with a horizontal v velocity of 600 m/s before it explodes and breaks into two fragments A and B of mass 1.5 kg and 2.5 kg, respectively. If the fragments travel along the
That make equal angles with the ceiling. Each cable has a length of l = 3.90 {rm m}. What is the tension T in each of the cables? Use 9.80 {rm m/s}^2 for the magnitude of the acceleration due to grav
Under these conditions the gauge pressure is measured to be 1.70 atm (about 25 1b/ine2)A. fter the car is driven on the highway for 30 min, the temperature of the air in the tires has risen to 45.0&