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A car is moving at 100.0 km/hr in a straight line. the drivers steps on the breaks, and the car stops in 2.75 sec. what is the acceleration of the car (uniform acceleration)
What is the average force provided by a crash pad that stops a 70.0 kg athlete who hits the pad at 10.0 m/s if it takes 1.20 s to stop the athlete?
A Goodyear blimp typically contains 4250 m3 of helium (He) at an absolute pressure of 1.10 x 105 Pa. What is the mass (in kg) of the helium in the blimp
A small conductive rod of length 1.5 m moves with a constant velocity v=15 m/s in a direction parallel to a long wire carrying a current of 22 A. Calculate the electric potential induced across the rod
A rocket, initially at rest on the ground, accelerates straight upward from rest with constant acceleration 49.0m/s2, Find the maximum height ymax reached by the rocket
A small object carrying a charge of -6.00 nC is acted upon by a downward force of 19.0nN when placed at a certain point in an electric field. What would be the magnitude and direction of the force
The absorber surface of a solar collector is made of aluminum coated with black chrome a s = 0.87 and e ir = 0.09). Solar radiation is incident on the surface at the rate of 600 W/m2. The air and the effective sky temperature are 25 and 15°C respe..
Two capacitors (C1=1.00 ?F and C2=2.00 ?F) are charged with Q1=3.00 ?C on the positive plate of capacitor 1 and Q2=3.00 ?C on the positive plate of capacitor 2, the total charge on the positive plate of capacitor 1
A grinding wheel in the shape of a solid cylinder of radius 0.333 meter is free to rotate on a frictionless, vertical axle. Determine what is the mass of the wheel
A magnetic field has a magnitude of 0.0686 T and is uniformover a circular surface whose radius is 0.166 m. The field isoriented at an angle of φ = 20.1o with respect to the normal to the surface. What is the magnetic flux through the surface?
A heart defibrillator delivering 400 J of energy by discharging a capacitor initially at 10,000 V has a capacitance of 8.00 µF (see Example 18.11 of the textbook). What is the voltage of the second defibrillator
A pendulum consists of a compact 0.30 kg bob attached to a string of length 1.90 m. A block of mass m rests on a horizontal frictionless surface. The pendulum is released from rest at an angle of 53° with the vertical.
a cylinder has an inner radius of 3.50 cm and a height of 58 cm and is filled water. What is the volume of water and what is the mass of the water
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