Ask question

Ask question

All categories

3 years ago

9

A 160-m long ski lift carries skiers from a station at the foot of a slope to a second station 40 m above. What is the IMA of th

e lift?

2 answers:

e-lub [12.9K]3 years ago

8 0

Answer: ima = l/h which means 160/40 = 4

Explanation:

Dmitrij [34]3 years ago

4 0

Answer:

ima is l/h so 160/40 = 4

Explanation:

You might be interested in

A particle of charge q moving through a magnetic field B experiences the force where v is the velocity of the particle. Show tha

MrRa [10]

Answer:

dx/Dt x B . x =0

Explanation:

Let's calculate the work and the magnetic force, the expression for magnetic force is

F = qv x B

Bold indicate vector quantities, the expression for the job is

W = F. X

Let's replace in this equation

W = q v x B . X

The definition of speed is

v = dX / dt

With what work is left

W = q dX / dt x B . X

As we can see the vector product gives us a vector perpendicular to dX and its scalar product by X of zero

Second part

The speed a vector and although the magnitude is constant the change of direction implies a change in the speed.

Let's calculate the magnitudes of speed (speed)

F = qv B sin θ

F = ma

q v B sin θ = ma

a = qvB / m senT

This acceleration is perpendicular to the magnetic field and the velocity, so it does not change if magnitude but its direction, it is directed to the center of the circle.

| v | = q vB/m sin θ

3 0

4 years ago

A wild pig attacks a hunter with a velocity of 5 m/s. At the instant when the pig is at a distance of 100 m the hunter shoots an

castortr0y [4]

Answer:

31.55 m/s

Explanation:

Let the initial velocity of the arrow is u metre per second.

Angle of projection, θ = 40 degree

range = 100 m

Use the formula for the range.

$R = \frac{u^{2}Sin2\theta }{g}$

100 = u^2 Sin(2 x 40) / 9.8

100 x 9.8 = u^2 Sin 80

u^2 = 995.11

u = 31.55 m/s

4 0

3 years ago

how long does it take sound to travel the distance between the two microphones? Given.:wave 1 of microphone 1 has T=2 sec and f=

Maksim231197 [3]

Answer:

0.00583 seconds

Explanation:

8 0

3 years ago

I need this done pls

Aleonysh [2.5K]

Answer:

all the details are in the attached picture, the answers are marked with colour.

5 0

2 years ago

A student of weight 652 N rides a steadily rotating Ferris wheel (the student sits upright). At the highest point, the magnitude

miskamm [114]

Answer:

Explanation:

Given

Weight of person $W=652\ N$

At highest point Magnitude of the normal force $F=585\ N$

net force at highest point

$F_{net}=W+F_c$

where $F_c=$ centripetal force

$F_c=\dfrac{mv^2}{r}$

$F_{net}=F_{n}=$ Normal Force

$585=652+F_c$

$F_c=-67\ N$

Negative sign shows force is in upward direction

At bottom point centripetal force is towards the bottom

$F_n=F_c+W$

$F_n=652+67$

$F_n=719\ N$

8 0

4 years ago