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A speedboat starts from rest and accelerates at +2.01 m/s2 for 7.00s. At the end of this time, the boatcontinues for an additional 6.00s with an acceleration of +0.518m/s2. Following this, the boat accelerates at -1.49m/s2 for 8.00s.
a) What is the velocity of the boat at t=21.0s?
b) Find the total displacement of the boat.
The largest moon of Pluto, Charon, was discovered in 1979. Charon is in a circular orbit of radius 19,600 km around Pluto, What is the total mass of the Pluto-Charon system
It is 170cm from your eyes to your toes. You're standing 230cm in front of a tall mirror. How far is it from your eyes to the image of your toes
A kid balances on a pogo stick. His mass combined with the mass of the pogo stick is 22kg. How much pressure does the pogo stick put on the ground
A 200KeV electron (i.e., an electron having kinetic energy of 200KeV) collides with a 200KeV positron (a particle with opposite charge of electron but) moving in the opposite direction in a head-on collision.
At what angle is the curve banked? The acceleration due to gravity is 9.8 m/s2.
Use the worked example above to help you solve this problem. A pipe is 2.38 m long. Determine the frequencies of the first three harmonics
Coulomb's Law A)When spheres are charged with a power supply, what is being controlled? How does this lead to a charge on the spheres? B)Why is it necessary to separate spheres as much as possible before charging them?
Sketch a sinusoidal wave with an amplitude of 1 cm and a wavelength of 7 cm. What is the amplitude of the sum of these waves
A 4.40-g lead bullet at 32.0°C is fired at a speed of 230 m/s into a large block of ice at 0°C, What quantity of ice melts
A 2 kg ball is thrown straight up in the air. What is the net force acting on the ball when it reaches its maximum height?
rob and dave run a 100-m race crossing the finish line in a dead heat both taking 10.0s. they each accelerate uniformly
An air-filled parallel-plate capacitor has plates of area 2.10 cm2 separated by 0.50 mm. The capacitor is connected to a 3.0 V battery. What is the charge on the capacitor
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