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A 35-kg block is supported by the spring arrangement shown. The block is moved vertically downward from its equilibrium position and released. Knowing that the amplitude of the resulting motion is 45 mm, determine
(a) the period and frequency of the motion,
(b) the maximum velocity and maximum acceleration of the block.
A space vehicle is traveling at 3760 km/h relative to Earth when the exhausted rocket motor is disengaged, What is the speed (in km/h) of the command module relative to Earth just after the separation
a dynamite blast at a quarry launches a rock straight upward and 2.3 s later it is rising at a rate of 14 ms. assuming
a single conducting loop of wire has an area of 7.1times10?2 m2 and a resistance of 120 ohms. perpendicular to the
Treat a cell in a human as a sphere of radius 1.0 µm. What's the volume of the cell
A family ice show is held at an enclosed arena. the skaters perform music with level 800 dB. this level is too loud for your baby, what is the total sound intensity that engulfs your
Assume a straight 1 millimeter diameter copper wire could just "float" horizontally in air because of the force due to the Earth's magnetic field (B), Estimate what current would the wire carry
An electron moves through a uniform magnetic field given by =Bx i +(2.40 Bx) j . At a particular instant, the electron has velocity =(1.92 i +4.61 j ) m/s and the magnetic force acting on it is (3.08 X 10-19 N) k. Find Bx.
An 11.8 kg block of metal is suspended from a scale and immersed in water, What are the forces exerted by the water on the top and bottom of the block
An astronaut in space cannot use a scale or balance to weigh objects because there is no gravity. But she does have devices to measure distance and time accurately. What is the mass of this canister
a motorcycle can accelerate at a rate of 5.2 ms2. the rider plans to take the bike on a loop de loop that has a radius
A cylindrical glass of water (H2O) has a radius of 4.61 cm and a height of 12.5 cm. How many moles of water molecules are contained in the glass
When at rest a proton experiences a net electro magnetic force of magnitude 8.8 multiplied by 10-13 N pointing in the positivex direction. When the proton moves with a speed of1.4 multiplied by 106 m/s in the positivey direction the net electromagnet..
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