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A baseball player hits a line drive. Just before the ball is struck, it is moving east at a speed of 39.6 m/s (89 mi/h). Just after contact with the bat, 1.07 x 10-3 s later, the ball is moving west at a speed of 51 m/s (114 mi/h). Find the ball's average acceleration.
Two forces are applied to a car in an effort to move it, as shown in the following figure, where F1 = 410 N and F2 = 376 N. (Assume up and to the right as positive directions.), What is the resultant of these two forces
The lens of an endoscope is carefully matched such that the light ray from the edge of the lens enters the fiber at an angle. What focal length should the lens have
A 70-kg ski jumper starts from rest 59 m above the ground on an icy track and flies off the track at an angle of 31°, With what speed does the skier leave the track
question1a helicopter is ascending vertically with a speed of 5.03. at a height of 132 above the earth a package is
What is the magnitude T of the tension force acting on one edge of the section while the internal bladder pressure is 2700Pa and each of the four tension forces is directed 6.4° below the horizontal.
A golfer, standing on a fairway, hits a shot to a green that is elevated 6.91 m above where she is standing. find the time that the ball is in the air before it hits the green
you suspect that an unknown is acetanilide mp 113.5-114oc. give a qualitative estimation of the melting point when the
A charge of -3.95 nC and a charge of -5nC are separated by a distance of 30.0 cm. Find the position at which a third charge of +8.00 nC can be placed so that the net electrostatic force on it is zero. How many cm from the -3.95 nC charge and how m..
A 50 g mass is attached to a massless spring and allowed to oscillate around an equilibrium according to: y(t) = 1.2*sin( 3.1415*t), What is the maximum Kinetic Energy of the mass
A baseball approaches home plate at a speed of 48.0 m/s, moving horizontally just before being hit by a bat. What is force on bat
A submarine is 308 m horizontally out from the shore and 141 m beneath the surface of the water. find the height of the building
An experiment determines that there are 49 allowed rotational energies for a diatomic molecule whose moment of inertia is 2 x 10^-46 kg*m^2. What is the maximum rotational kinetic energy in eV of the molecule?
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