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An object is initially traveling at 9 m/s in the negative x direction and a constant acceleration applied to the object. After 2.4 seconds, the object is traveling at 7.4 m/s in the positive x direction. What is the acceleration of the object in m/s2? If the answer is in the negative x direction, include a negative sign, but do not include a positive sign for the positive x direction.
and also can you tell me what constant acceleration equation you used and how you got the answer? thank you
A siren emitting a sound of frequency 1000 Hertz moves away from you towards the face of a cliff at a speed of 10 m/s. Compute the beat frequency between the two sounds
A sailboat tracking against the wind moves as follows: 3.2 km at 45 degrees east of north, 4.5 km at 50 degrees west of north, What is the speed if it is assumed to be constant
What is the momentum of a 950 kg sports car traveling down the road at a speed of 26 m/s
A charge B with Qb=-2 x 10-19 C and a dipole with charges +q and -q separated by s=0.05mm contribute to a net electric field that vanishes completely at location A. What is the electric force on a positive charge of Q=+2 x 10-5 C placed at position..
Five children are pushing on a snowball. Each is pushing with a force of 10.0 N. Each is pushing at an angle of 45° relative to his neighbor. What is the net push on the ball
A capacitor consists of two parallel plates, each with an area of 16.0 cm2, separated by a distance of 0.250 cm. What is the charge on either plate
On a cool morning, when the temperature is 14 degrees C, you measure the pressure in your car tires to be 30 psi. After driving 50 mi on the freeway, temperature of your tires is 52 degrees C.
Assume that all surfaces in the figure are frictionless. What value should have so the masses won't accelerate? Express your answer to two significant figures and include the appropriate units.
question a block a of mass 2kg rests on another block b of mass 8 kg which rests on a horizontal floor. the coefficient
two charges -19 x 10-6 c and 5.4 x 10-6c are fixed in place and separated by 3.1 m. a at what spot along a line through
A typical helium nucleus consists of two protons and two neutrons. What is the electric force between the nucleus and one of the electrons orbiting the nucleus
A transverse wave on a string is described by the equation y(x, t) = (2.29 cm) sin[(107 rad/s)t + (18 rad/s)x]. How fast does the wave move along the string
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