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When we talk about angle of repose and split weight into its components then why angle between resultant and with 1componnt=angle of repose?
two particles are of masses m1 and m2 are located at the pionts (2,7) and (5,6)respectvely. calculate their moment of inertia through the line via the points (0,0) and (5, 6).
a) Graph the power of the laser when it's on. b) Calculate the energy in the pulse. c) Calculate the number of photons in the pulse.
Suppose that a car of mass (m) is moving at a constant speed (v) of 20 m/s around a curve whose radius (R) is 190 m. What angle of bank makes reliance on friction unnecessary?
The next day, another plane flies directly from A to B in a straight line. In what direction should the pilot travel in this direct flight?
Speedboat A negotiates a curve whose radius is 156 m. Speedboat B negotiates a curve whose radius is 186 m. Each boat experiences the same centripetal acceleration. What is the ratio vA/vB of the s
Find the strength of the magnetic field (a) midway between the wires, (b) at a point in the plane of the wires but 3.00 m from the nearer of the two.
What is the terminal speed for an 80.0 skier going down a 44.0 snow-covered slope on wooden skis = 0.060?
If the electric field in the paper is not to exceed one-half the dielectric strength, what is the maximum potential difference that can be applied accross the capacitor?
Assume the wire has a resistance R = 0.300 , and all of the copper is used. (a) What will be the length of the wire in meters? (b) What is the diameter in micrometers?
A car is travelling up one side of a hill and down the other side. The crest is a circular arc with radius of 45m. Determine the maximum speed that the car can have while moving over the crest witho
A 3.5 kg block of copper at a temperature of 75oC is dropped into a bucket containing a mixture of ice and water whose total mass is 1.2 kg. When thermal equilibrium is reached the temperature of th
The woman pilot experiences 5g's of acceleration or 52 m/s2. If she weighs normally 120 pounds on land, what is her apparent weight during this extreme acceleration?
A child traveling 5 m/s on a sled passes her younger brother. If her average acceleration on the sledding hill is 2 m/s2, how fast is she traveling when she passes her older brother 4 s later?
The sensor on the torso of a crash-test dummy records the magnitude and direction of the net forceacting on the dummy. If the dummy is thrown foward with a force of 130 N while simultaneously being
The pair q2 and q3 is 0.23 J. If the total potential energy of the arrangement is 0.60 J, what is the potential energy of the pair q1 and q3?
A 1400-N uniform beam is attached to a vertical wall at one end and is supported by a cable at the other end. A 1960-N crate hangs from the far end of the beam. Using the data shown in the figure, f
A circular curve of highway is designed for traffic moving at 83 km/h. Assume the traffic consists of cars without negative lift. (a) If the radius of the curve is 280 m, what is the correct angle o
A 2.5 mC charge is on the y-axis at y = 3.0 and a 6.3 mC charge is on the axis at x = 3.0m. What is the direction of the potential at the origin?
The mass is now released from rest with an initial displacement of xi = 0.210 m, and it subsequently undergoes simple harmonic oscillations. a) Calculate the frequency of the oscillations.
A tuning fork with a frequency of 356 Hz is found to cause resonance in a closed column of air at 41.0cm and at 65 cm. Find the velocity of the sound produced by the tuning fork.
Two 300 kg (667 lb) masses are separated by a distance of 10 m. Using Newton's law of gravitation, find the magnitude of the gravitational force exerted by one mass on the other.
A capasitor consists of two square plates, 6.0 on a side, separated by a 1.5 air gap. How much energy would be stored in the capacitor if a mica dielectric is placed between the plates?
The angle between the support cable and the horizontal is 32 degrees, and the angle between the boom and the horizontal is 48 degrees. Find the tension in the support cable and find the magnitude of
An alpha particle with kinetic energy of 12.5 MeV makes a head-on collision with a lead nucleus at rest. What is the distance of closest approach of the two particles? (Assume that the lead nucleus