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i) What force is required? ii) Determine the magnitude of the acceleration of the block half-way back to equilibrium?
A circular surface having a radius of 0.065 m is exposed to the uniform electric field of magnitude 1.57 x 104 N/C. The electric flux via the surface is 69 N•m2/C. Determine the angle between the
573.4 J of heat energy are transferred to the system which does 365.8 J of work. By how much does the thermal energy of the system change?
A 24% efficient engine accelerates a car of 1457 kg from rest to 12.16 m/s. Determine how much energy is transferred to the engine through burning gasoline?
When moon is at its zenith at the point A on earth, it is seen to be at horizon from point B. Points A and B are 6155 mi apart and radius of earth is 3960mi. Determine distance of the moon.
A child of 18.75 kg is on a swing which suspends from 3.31 m long chains. Determine her maximum speed when she swings out a 47° angle?
If the similar block is then placed in an unknown liquid, unattached to a scale, it floats with 2/3 of its volume submerged in the unknown fluid. The density of water is around 1.00 × 103 kg/m
Determine how much work should you do to push a block of steel of 14.29 kg across a steel table at a steady speed of 1.09 m/s for 3.69 s? (The Coefficient of kinetic friction is equivalent to k = 0.
A locust of 3.3g reaches a speed 2.9m/s throughout jump. i) Determine the kinetic energy at its speed? ii) When the locust transforms having 25% determine how much energy is needed for the jump?
As a jet plane of 16691 kg lands on an aircraft carrier, its tail hook snags a cable to slow it down. The cable is joined to a spring having spring constant 60320 N/m. When the spring stretches 65 m
Assume the eyes are 4 ft above floor, and you sit at the distance x from the screen. Use subtraction formula for tangent to illustrate that Theta = arctan(22x/(x^2) + 168)
A student places her physics book of 487 g on a frictionless table. She pushes the book against a spring, compressing the spring by 4.86 cm and then releases the book. Determine the speed of book as
To what angle does the pendulum move back and forth on the other side? (Write your answer in degrees.)
Determine at what speed does a 1049 kg compact car encompass the similar kinetic energy as a 32782 kg truck going 37 km/h?
A book of 2.27 kg is lying on the 1.05 m high table. You pick it up and lay it on a bookshelf 2.4 m above the floor. i) Determine how much work does gravity do on the book?
Given triangle ABC with measure of angle A = 60o, length of BC = 10, and length of AC = 20. How many solutions are present for measure of angle B?
The two spherical drops of mercury each encompass a charge of 0.2 nC and a potential of 320 V at the surface. The two drops combine to form a single drop. Find out the potential at the surface of th
Primarily, before the engine is ignited, the rocket sits at rest on top of the spring. Determine how much is the spring compressed?
A wood block of 2.5 kg suspends from the bottom of a 1.1 kg, 1.3 m long rod. The block and rod make a pendulum which swings on a frictionless pivot at the top end of the rod. A 13 g bullet is fired
A transformer on a pole close to a factory steps the voltage down from 3600 V (rms) to 120 V (rms). The transformer is to deliver 900 kW to the factory at efficiency of 81%. Determine values for the
The rectangular box with the top is to have a height of 10 inches and the volume of 1000 in^3. Determine the formula for total amount of material in terms of one of dimensions of base. Call dimensi
When the primary (input) coil in the transformer in the adapter consists of 240 turns, determine how many turns are there on the secondary (output) coil?
A toy dart gun consists of a spring having a spring constant of 315 N/m. An 12 gram dart is loaded in the gun and the spring is compressed a distance of around 7.9 cm and then shot into the air. If
Supposing that f = μN, represent that the coefficient of rolling friction for the car moving down the inclined plane having a constant speed is given by μ = m2/mc cosθ. Utilize symbols,
Number N of bacteria presented in the culture at time t (in hours) obeys law of uninhibited growth N(t)=1000e^.01t. Find number of bacteria at t=0 hours. Find growth rate of bacteria?