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A standing wave of 625 Hz is produced on a string that is 1.33 m long and fixed on both ends. If the speed of waves on this string is approximately 333 m/s, how many antinodes are there in the standing wave?
The Houston Astrodome encloses a ground area of 37,000 m^2. Find the flux through the dome of the earth's magnetic field
A 1200-kg cannon shoots a 28-kg shell at an angle of 25° above the horizontal and a speed of 470 m/s. What is the recoil velocity of the cannon
the 25g bullet travelling at 350m/s strikes a block of wood. The block of wood exerts an average force of 50,000N opposing the motion of the bullet. How far does the bullet penetrate while stopping.
A mass pulled by a constant force accelerates from 10 cm/s to 25 cm/s in 3.5 s. what is the magnitude of the second force
Two cylindrical glass beads each of mass m = 32 mg are set on their flat ends on a horizontal insulating surface separated by a distance d = 3 cm. The coefficient of static friction between the beads and the surface is μs = 0.3. The beads are then gi..
At T = O degrees Celsius and p = 1000mb, 1g of dry air receives during an isochoric process an amount of heat. It is then observed that its pressure increases by 50mb. What is the change of temperature of the air and what is the amount of heat absorb..
An eagle with 1.8m wingspan flaps its wings 21 times per minute, each stroke extending from 42%u2218above the horizontal to 42%u2218 below. What's the average tangential velocity of the wingtip
a mass of 10kg is undergoing uniform circular motion in horizontal plane, the radius of the circular path is 3.2m, determine the magnitude of the tangential velocity of the mass
Two identical parallel-plate capacitors, each with capacitance C, are charged to potential difference ?V and then disconnected from the battery. Find the total energy of the system of two capacitors before the plate separation is doubled
A solid 2.5 kg ball with a radius 30 cm sits at top of ramp which is at an angle of 30 degrees from the floor. How much energy does the ball have at the bottom of the ramp
A 1 490-kg automobile has a wheel base (the distance between the axles) of 3.20 m. Find the force exerted by the ground on each wheel
A ranger in a national park is driving at 52 km/h when a deer jumps onto the road 86 m ahead of the vehicle. After a reaction time of t s, the ranger applies the brakes to produce an acceleration of -2.9 m/s2.
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