f a car takes a banked curve at less than the ideal speed, friction is needed to keep it from sliding toward the inside of the curve (a real problem on icy mountain roads). (a) Calculate the ideal speed to take a 80 m radius curve banked at

Osvaldo Apodaca
2021-12-19
Answered

f a car takes a banked curve at less than the ideal speed, friction is needed to keep it from sliding toward the inside of the curve (a real problem on icy mountain roads). (a) Calculate the ideal speed to take a 80 m radius curve banked at

You can still ask an expert for help

asked 2021-03-07

Force F = (2.0 N) i - (3.0 N) k acts on a pebble with positionvector
r = (O.50 m) j - (2.0 m) k, relative to the origin. What isthe resulting torque acting on the pebble about

a.) the origin and

b.) a point with coordinates (2.0 m, 0, - 3.0 m)?

a.) the origin and

b.) a point with coordinates (2.0 m, 0, - 3.0 m)?

asked 2020-11-23

Saturn has an equatorial radius of 6.00 107 mand a mass of 5.67 1026 kg.

(a) Compute the acceleration of gravity at the equatorof Saturn.

(b) What it the ratio of a person's weight on Saturn to that onEarth?

(a) Compute the acceleration of gravity at the equatorof Saturn.

(b) What it the ratio of a person's weight on Saturn to that onEarth?

asked 2021-02-21

A small block with mass m is placed inside an inverted conethat is rotating about a vertical axis such that the time for onerevolution of the cone is T. the walls of the cone make an angle Bwith the vertical. The coefficient of static friction betweenthe block and the cone is ?. Draw a free body diagram.If the block is to remain a constant height h above the apex of thecone, what are the maximum and minimum values of T?

asked 2021-02-21

A 0.75-kg ball is attached to a 1.0-m rope and whirled in avertical circle. The rope will break when the tension exceeds 450 N. What is the maximum speed theball can have at the bottom of the circle without breaking the rope?

A) 38 m/s

B) 16 m/s

C) 12 m/s

D) 24 m/s

E) 32 m/s

A) 38 m/s

B) 16 m/s

C) 12 m/s

D) 24 m/s

E) 32 m/s

asked 2022-01-17

a. An FM radio station broadcasts at a frequency of 101.3 MHz. What is the wavelength?

b. What is the frequency of a sound source that produces the same wavelength in${20}^{\circ}C$ air?

b. What is the frequency of a sound source that produces the same wavelength in

asked 2021-12-10

In the following, simplify using absolute values as necessary.

asked 2021-12-03

1) Given the vector-valued function

a- Evaluate

b- Find r '(t) and evaluate r '(0)

c- Find r''(t)

d- Evaluate