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The asteroid is roughly spherical (strange for such a small body) having a radius of 19.5 km. i) Determine the acceleration of gravity at the surface of asteroid.
A bat flies toward a wall, emitting a steady sound having a frequency of 22.5 kHz. This bat hears its own sound plus the sound reflected through the wall. Explain how fast must the bat fly to hear a
A base-ball is thrown from the roof of a building 40.0 meters tall. The initial velocity of the ball is 20 m/s and the angle at which the ball is thrown is 37 degrees over the horizontal. (i) Deter
A person walks into a room which has, on opposite walls, two plane mirrors generating multiple images. Determine the distances from the person to the first three images view in the left-hand mirror
You are standing on a small stool which places your eyes 3.10 over the bottom of the pool. As you look at the target, your look is 30 below horizontal. At what angle beneath horizontal must you thro
A person holds a rifle in a horizontal position and fires at a target. The bullet consists of a muzzle speed of 200 m/s, and the person hears the bullet strike the target 1.60 s after firing it. The
A mass m which is suspended from a spring having spring constant k is pulled down to a point P which is a distance d below the equilibrium point and then free.
Their gravitational interaction causes the stars to be pulled toward one other. Determine the speed of the stars just before they collide.
A gas constant pressure consists of a volume of 35.0m3, and its temperature is 20.0 degree C. Determine its volume if its temperature is increased to 100.0 degree C at the similar pressure? Is this
A inductor of 5H is subjected to the electric current which changes at a rate of 4.5 amps per second. Determine how much of a voltage drop will there be across the inductor?
Determine how will the angular acceleration of a disk raise if we were to raise the radius by a factor of 7.48?
Pinky consists of a mass of 3.54 kg sits on a pump handle at a distance of 35.57 cm from the axis of rotation. By using this information, determine the torque of Pinky when the handle is 66.8° f
The rotational inertia of the collapsing spinning star changes to 1/4 its initial value. Determine the ratio of the new rotational kinetic energy to the initial rotational kinetic energy?
An electric heater is made by applying a potential difference of 110 V across a wire having a resistance of 5.0Ω. Determine the power rating of the heater in kW?
The electron of charge q = -1.60 x 10^-19C is moving with a speed of 3.00 x 10^3 m/s perpendicular to the steady magnetic field of strength 0.200 T. When it is moving in a circle and travels 400 m,
Five flood-lights of 250 watt operate at night for 8 hours. When the cost of electricity if $0.08 per kWh, determine the cost of running the flood-lights for 14 nights?
The magnitude of torque on a square loop of area A having current I in a constant magnetic field of magnitude B if the magnetic field is parallel to the plane of the loop is?
A spool of thread consists of an average radius of 1.00cm. When the spool comprises 62.8 m of thread, determine the number of turns of thread on the spool?
A proton is positioned on the Earth's magnetic equator at 1000 m altitude. In which direction will it be deflected if it is projected downward? Describe in depth please.
The magnetic field of 1.2 T is present at an angle of 30 degree to the horizontal direction (or positive x axis). Determine the magnitude of the force experienced through the proton? (qp = 1.6 x 10^
The Nichrome wire is substituted by a wire of the similar length and diameter, and same mobile electron density however with electron mobility 4-times as large as that of Nichrome. Now determine the
The magnetism of ferromagnetic materials, like iron, consists of its origin in the intrinsic magnetic moment of electrons which is related with their spin motion.
The two conductors are made of the similar material and encompass the similar cross sectional area. The ratio of their lengths is 2:1. They encompass the similar electrical potential across their le
The two conductors are made of the similar material and have the similar cross sectional area. Their length ratios are 2:1. Find out the ratio of their resistances?
Determine the speed with which M hits the floor in terms of g, M, m and h. Find your result when m = 4.0kg, M = 12.0 kg and h = 3.0m