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A racetrack has the shape of an inverted cone, as the drawing shows. On this surface the cars race in circles that are parallel to the ground, and the surface is at an angle = 40°. For a speed of 35 m/s, at what value of the distance d should a driver locate his car if he wishes to stay on a circular path without depending on friction?
An automobile travels on a straight road for 40.0 km [E] at 30.0 (km/h). It then continues in the same direction for another 40.0 km [E] at 60 (km/h). Estimate the average speed, distance, displacement, & average velocity for the trip.
A rubber ball (150g) confined to move in the x direction, bounces elastically back and forth at 9m/s between two walls, Calculate the average pressure on this wall
A uniform electric field exists everywhere in the x, y plane. This electric field has a magnitude of 6000 N/C, Find the magnitude of the net electric field at x = -0.18 m
The ultracentrifuge is an important tool for separating and analyzing proteins in biological research. If the samples are 11 cm from the axis if the rotor and the ultracentrifuge spins at 6.5×10^4 rpm, what is the magnitude of the net force on the ..
A proton with an initial velocity of (1.0x + 2.0y + 3.0z) x 10^5 m/s enters a megnetic field of 0.50z T. Find the magnitude of the force on the proton. The mass of the proton is 1.67 x 10^-27 kg.
Two waves of the same frequency have amplitudes 0.961 and 2.16. What is the resultant amplitude
1400 kg car acelerates from 45mph (20.1 m/s) to 65mph (29.1m/s) over a distance of 440 m in 35 s. what is the network done on the car by all forces acting on it
a 9 kg bar 1.5 m long is set up to rotate about its center (the dark circle). Each arrow represents a force that is being applied to the bar. FA = 15 N, FB = 28 N, FC = 35 N, & FD = 19 N. Determine the angular acceleration of the bar
A single current carrying loop has a magnetic dipole moment of 10i - 20j + 15k Am2 and is in a region of space, Find the torque on the current loop
what is the minimum work by the force p to move the 8-kg block to the top of the incline of uk0.4? compare this with
A violin string of length 35 cm and mass 1.1 g has a frequency of 478 Hz when it is vibrating in its fundamental mode. What is the wavelength of the standing wave on the string
When a charge that is free to move is released in the presence of an electric field, does it move from a region of high electric potential to a region of low electric potential or vice-versa? Does your reply depend on whether the charge is positiv..
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