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Q. A baseball pitcher can throw a ball with a speed of 40. He is in the back of a pickup truck that is driving away from you. He throws the ball in your direction, and it floats toward you at a lazy 30. What is the speed of truck?
Q. A screen is placed 50.0 cm from a single slit that is illuminated with light of wavelength 676 nm. If the distance between the first and third minima in the diffraction pattern is 3.00 mm, what is the width of the slit?
A bicycle wheel is rotating at 45 when the cyclist begins to pedal harder, giving the wheel a constant angular acceleration of 0.42.
A 4.00-g bullet is moving horizontally with a velocity of +355 m/s, where + sign indicates that it is moving to the right. The bullet is approching two blocks resting on a horzizonta frictionless surface.
An archer puts a 0.33 kg arrow to the bowstring. An average force of 183 N is exerted to draw the string back 1.3 m. suppose that air resistance is negligible.
A 55 year old woman who is complaining of intermittent flushing, itching and heartburn for several months. Mega dosing of that of the following vitamins may result in these symptoms.
A contact lens is made of plastic with an index of refraction of 1.36. The lens has an outer radius of curvature of +1.91 cm and an inner radius of curvature of +2.41 cm. What is the focal length of lens?
A diving board length = 5.60 that weighs 250 is supported by two pillars. One pillar is at the left end of the diving board; the other is distance = 1.65 away. Determine the magnitude of the force exerted by the left pillar while an 80.0 diver sta..
find the magnitude of the acceleration of the boy. Find the average magnitude of the induced emf if the change in shape occurs in 4.14 s, and the local 0.120 T magnetic field is perpendicular to the plane of the loop.
What is the speed of the two carts at the moment while their speeds are equal?
An airplane flies 200 km due west from city A to city B and then 300 km in the direction of 30 degrees North of West from city B to city C. In straight-line distance, how far is city C from city A.
A car travelling at 16 m/s runs out of gas while travelling up a 21 degree slope. How far up the hill would it coast before starting to roll back down.
In adding, the snow exerts a retarding force on the sled that points opposite to the direction of motion, and has a magnitude of 57 N. Find out the acceleration of the sled and child.
An occupant of a car has a chance of surviving a crash if the deceleration all through the crash is not more than 30.00 g. Approximation the force on a 72 kg person decelerating at this rate.
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