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When a charged particle moves at an angle of 15° with respect to a magnetic field, it experiences a magnetic force of magnitude F. At what angle (less than 90°) with respect to this field wi
A baseball is hit at ground level. the ball is observed to reach its maximum height avove ground level 3.0 s after being hit. 2.5 s after reaching this maximum height, the ball is observed to barely
The wire is then immersed in a liquid, and the resistance drops to 80.1. The temperature coefficient of resistivity of the thermometer resistance is a =2.80 x 10-3 (C°)-1. What is the temperatur
A particle moves in the xy plane with constant acceleration. At t = 0 the particle is at 1 = (4.4 m) + (3.3 m), with velocity 1. At t = 3 s, the particle has moved to 2 = (11 m) - (1.9 m)and its vel
The Sun is lower in the sky during the winter than it is during the summer. a.) How does this change affect the flux of sunlight hitting a given area on the surface of the Earth?
What is the absolute pressure at the bottom of the mercury column, when the fundamental frequency of the shortened, air-filled tube is equal to the third harmonic of the original tube?
If the ramp is inclined at 28.5° with respect to the ground, what is the component of her acceleration that is parallel to the ground?
A toy is launched upward with a spring.its launch speed is 114m/s(upward),and it is under no power once launched.while flying upward,air resistance and gravity combine for an acceleretion of 11.4m/
At the 18th green of the U.S. Open you need to make a 19.9 ft putt to win the tournament. When you hit the ball, giving it an initial speed of 1.64 m/s, it stops 5.87 ft short of the hole. Assuming
What are the period and speed of a person on a carousel if the person has an acceleration with a magnitude of 0.74 m/s2 when she is standing 3.7 m from the axis?
A swimmer heads directly across a river, swimming at 1.5 m/s relative to the water. She arrives at a point 42 m downstream from the point directly across the river, which is 83 m wide.What is the sw
A stone is dropped into a river from a bridge 49.2 m above the water. Another stone is thrown vertically down 1.49 s after the first is dropped. Both stones strike the water at the same time. What i
Write the vector that describes the displacement of a fly if it quickly goes from the tip of the minute hand to the tip of the hour hand at 3:00 P.M. (Let represents the displacement of the fly.)
If a body travels half its total path in the last 1.70 seconds of its fall from rest, find the total time of its fall (in seconds). So far I know acceleration= -9.8 m/s^2 v(initial)= 0 and be
Monochromatic light of variable wavelength is incident normally on a thin sheet of plastic film in air. The reflected light is a maximum only for 475.7nm and 666.0 nm in the visible spectrum.
Consider a completely isolated, thick, conducting infinite slab. one face-off the slab has a uniform surface charge density, s. 1. What is the electric field of the slab?
The radius of a typical human eardrum is about 4.2 . Find the energy per second received by an eardrum when it listens to sound that is at the threshold of hearing.
A 72 nC charge is located at x=3.00 meters on the x axis and an 8.0nC charge is located at x=7.0 meters. At what point on the x axis is the electric field zero? Please explain this answer and draw i
Initially (at time t = 0) a particle is moving vertically at 6.1 m/s and horizontally at 0 m/s. Its horizontal acceleration is 1.2 m/s2 . At what time will the particle be traveling 44 degrees with
Only two horizontal forces act on a 3.0 kg body that can move over a frictionless floor. One force is 9.0 N acting due east and the other is 8.0 N acting 62 degrees north of west. What is the magnit
You select a rental package that includes a car with an average consumption of 6.00 of fuel per 100 . Considering that in Europe the average fuel cost is 1.063 , how much (in US dollars) will you sp
Does this lack of proper technique result in the molar mass of the vapor in the flask being reported as too high, too low, or unaffected? Explain.
A Breathalyzer instrument contains two ampules, each of which contains 0.75 mg K2Cr2O7 dissolved in 3 mL of 9 mol L^-1 H2SO4(aq). One of the ampules is used as reference.
Initially (at time t = 0) a particle is moving vertically at 4 m/s and horizontally at 0 m/s. Its horizontal acceleration is 1.2 m/s2 . At what time will the particle be traveling at 43o with respec