Start Discovering Solved Questions and Your Course Assignments
TextBooks Included
Active Tutors
Asked Questions
Answered Questions
An 80kg quarterback jumps straight up in the air right before throwing a 0.43kg football horizontally at 15m/s . How fast will he be moving backward just after releasing the ball?
A river flows due east at 1.50 m/s. A boat crosses the river from the south shore to the north shore by maintaining a constant velocity of 15.0 m/s due north relative to the water.
By what factor would the minimum stopping distance change if both the coefficient of kinetic friction and the initial speed were doubled?
A light plane is headed due south with a speed of 159 relative to still air. After 1.09 hour, the pilot notices that they have covered only 125 and their direction is not south but southeast (45.0).
A person lying on a mattress in the ocean rises and falls through one complete cycle every five seconds. The crest of the wave causing the motion are 20 m apart. Determine the frequency and speed o
If the speed of sound in water is 1400 m/s, how long does it take a soner device to locate on object 498 m under the water.
A car with a rectangular size of 5.50 m by 2.00 m is traveling along a horizontal roadway. Find the magnitude of the elctric flux through the bottom of the car.
Light of wavelength 467 nm in air enters a fishbowl filled with water, then exits through the crown-glass wall of the container. Find the wavelengths of the light (a) in the water and (b) in the gla
if the bunting support rope is at 30degree to the vertical and its tension force is 400n. What is the vertical component of tension and what is the horizontal pull from the bunting?
A hotel elevator ascends 190 m with a maximum speed of 4.0 m/s. Its acceleration and deceleration both have a magnitude of 1.4 m/s2. How long does it take to make the complete trip from bottom to t
a car moving with a constant acceleration covers the distance between two points 80 m apart in 8.0 s. its velocity as it passes the second point is 17 m/s.
A copper telephone wire has essentially no sag between poles 30 m apart on a winter day when the temperature is -16?C. How much longer is the wire on a summer day when the temperature is 30 ?C? Assu
Find the moment of inertia of the wheel if the block rises to a height of h = 6.8 cm before momentarily coming to rest.
A 1.9 kg rock initially at rest loses 401 J of potential energy while falling to the ground. Assume that air resistance is negligible. Calculate the kinetic energy that the rock gains while fal
A diving board oscillates with simple harmonic motion of frequency 2.1 cycles per second What is the maximum amplitude with which the end of the board can vibrate in order that a pebble placed ther
After landing, a jet liner on a straight runway taxis to a stop at an average velocity of -35.0 km/h. If the plane takes 7.00 s to come to rest, what are the plane's initial velocity and accelerati
A pound of body fat has an energy content of about 4 100 kcal. If a 1 400-kg automobile had an equivalent amount of translational kinetic energy, how fast would it be moving?
After falling from rest from a height of 34 m, a 0.47 kg ball rebounds upward, reaching a height of 24 m. If the contact between ball and ground lasted 1.8 ms, what average force was exerted on the
the box accelerates down the surface at 2 m/s/s. what is the rotational inertia of the wheel about the axle.
Suppose that such a capacitor was made in the form of a parallel-plate capacitor with a vacuum between the plates and an electric field no greater than 7.00 106 V/m. What is the minimum area of the
Determine which of the following statements are true; the tangential speed (Vr) is a constant, the centripetal force required for the plane to stay on circular motion is (Fc = mac).
The smallest insects that a bat can detect are approximately the size of one wavelength of the sound the bat makes. What is the minimum frequency of sound waves required for the bat to detect an ins
A damped mass-spring system oscillates at 140 Hz. The time constant of the system is 2.0 s. At t = 0, the amplitude of oscillation is 8.6 cm and the energy of the oscillating system is then 86 J. (
What is the distance between the second order bright fringe of light with l = 684 nm and the third order bright fringe of light with l = 413 nm
3.60×1023 nitrogen molecules collide with a 18.0 wall each second. Assume that the molecules all travel with a speed of 410 and strike the wall head on. What is the pressure on the wall?