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Q. David is driving a steady 24.0 when he passes Tina, who is sitting in her car at rest. Tina begins to accelerate at a steady 2.70 at the instant when David passes. How far does Tina drive before passing David?
What is her speed as she passes him?
Q. A 13 g bullet traveling 229 m/s penetrates a 2.0 kg block of wood and emerges going 169 m/s. If the block is stationary on a frictionless surface when hit, how fast does it move after the bullet emerges?
An 18 g rifle bullet traveling 210 m/s buries itself in a 3.9kg pendulum hanging on a 2.6 m long string, which makes the pendulum swing upward in an arc. find the vertical and horizontal components of the pendulum's displacement.
What are changes in the object's momentum and velocity. How much work is done if the similar tension is directed parallel to the snow.
An airplane starting from airport A flies 304 km east, then 364 km at 35.5° west of north, and then 150 km north to arrive at last at airport B.
Compute the average intensity
What is magnitude of the unknown force
Two mirrors meet at a 127° angle. If light rays strike one mirror at 40° as shown, at what angle ? do they leave the second mirror.
A projectile is fired at an upward angle of 45° from the top of a 212 m cliff with a speed of 161 m/s. What would be its speed while it strikes the ground below.
Two charges are placed on the x axis. One of the charges q1= +8.5 C is at x1 = + 3.0 cm and the other q2= -21C is at x1 = + 9.0 cm. Find the net electric field (magnitude and direction) at.
Boat A negotiates a curve whose radius is 363m. Boat B negotiates a curve whose radius is 110m. Each boat experiences the similar centripetal acceleration. What is the ratio of speed of boat A to that of boat B.
A car travelling at 120 strikes a tree. The front end of the car compresses and driver comes to rest after travelling 0.900.
Besides the gravitational force, a 3.40-kg object is subjected to one other constant force. The object starts from rest and in 1.20 s experiences a displacement of (5.50 - 3.30) m, where the direction of is the upward vertical direction. find the ..
What is the weight of the displaced amount of water when the boulder is placed inside the tank (measured in N)? The tank had an original volume of water of 5000 L. while the boulder got placed inside the tank, the volume of water rose to 5010.165 ..
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