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A 1.94 kg solid sphere (radius = 0.105 m) is released from rest at the top of a ramp and allowed to roll without slipping. The ramp is 0.710 m high and 5.17 m long. When the sphere reaches the bott
A 1270 kg person rolls along a city street at 25.0 miles per hour, and a grapefruit has a mass of 0.142 kg. What speed must the grapefruit have if its momentum is to be equal in magnitude to that of
(A) What is the electric force exerted on an electron when it is 3.0 * 10^-15 meters from the center of the nucleus? (B) What is the acceleration of the electron at this point?
A scientist claims to have developed a new method of isolating individual particles, which will enable him to detect their radial position to within 0.20 nm and their radial momentum to within 10 eV
An open hemispherical surface of radius 0.0875 m is in a magnetic field of 0.1356 T. The circular cross-section of the surface is perpendicular to the direction of the field. Calculate the magnetic
The angular momentum of a flywheel having a rotational inertia of 0.100 kg·m2 about its central axis decreases from 3.20 to 1.200 kg·m2/s in 1.00 s. (a) What is the magnitude of the av
Two nanowires are separated by 1.2 nm as measured by STM. Inside the wires the potential energy is zero, but between the wires the potential energy is greater than the electron's energy by only 1.4
Find the condition for steady motion in which the mass point on the plane rotates uniformly at constant distance from the hole. Investigate the small oscillations in the radial distance from the hol
The voltage source in a series RLC circuit containing a 40.0 - Ohm resistor, a 50.0 - mH inductor and a 50.0 - μF capacitor has an output of ΔVrms = 100 V at the angular frequency of 1 000
An RL circuit consists of a resistor R=68 Onμσ, an inductor, L = 31 mH, and an ac generator with an rms voltage of 120 V. At what frequency will the rms current in this circuit be 1.5 A?
Gas is confined in a tank at a pressure of 1.0 X 10^8 Pa and a temperature of 15.0 C. If half the gas is withdrawn and the temperature is raised to 65.0 C, what is the new pressure in the new tank i
65.0- Hz generator with an rms voltage of 135 V is connected in series to a 3.35-kOnμ resistor and a 1.50- μF capacitor. Find the phase angle between the current and the voltage.
A 105 -μF capacitor is connected to an ac generator with an rms voltage of 20.0 V and a frequency of 100.0 Hz. What is the rms current in this circuit?
A ball is launched into the air at an angle of 60* above the horizontal with a speed of 21.0 m/s. A) what are the x and y components of the velocity of the ball 3.20 s after it leaves the cannon? B)
A series LC circuit contains a 100 mH inductor, a 36.0 mF capacitor and a 12 V battery. The angular frequency of the electromagnetic oscillations in the circuit is:
The distance between 2 telephone poles is 50.0 m. When a 1.00 kg bird lands on the telephone wire, midway between the poles, the wire sags 0.200 m. (a) Draw a free-body diagram of the bird. (b) How
The blocks are allowed to move on a fixed block wedge of angle 46 degress. The coefficient of kinectic friction is 0.21 for both block. What is the acelleration of the two blocks?
A plane has an airspeed of 142 m/s. A 16.0 m/s wind is blowing southward at the same time as the plane is flying. If the velocity of the plane relative to Earth is due east, what is the magnitude of
The collision between a hammer and a nail can be considered to be approximately elastic. Estimate the kinetic energy acquired by a 14 g nail when it is struck by a 550 g hammer moving with an initia
A small car collides with a large truck. Is the magnitude of the force experienced by the car greater than, less than, or equal to the magnitude of the force experienced by the truck?
Calculate the difference between the observed frequency, f0, at the car and the original frequency, fs.
What is the pan's distance from the ceiling when the spring reaches its maximum length?
What is the radial acceleration if the equator were sitting in a city with latitude 34 degrees? Does this rotation make us heavier or lighter? If a person weighs 100 pounds with no rotation, what wo
They have a potential difference of 0.25 V. Find the numerical value of the electric field. What are the charge density and total charge on each plate? Draw the equipotential surfaces at 0.10 V and