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4 years ago

Can a runner on a track be accelerating even if she is running at a constant speed why or why not

1 answer:

6 0

If the runner is running in a circular track then yes when something or someone is moving in a circular motion at a constant speed they are indeed accelerating. They’re accelerating because the direction of the velocity vector is changing

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An instrument rated pilot is planning a flight under IFR on July 10, this year. Before conducting the flight, the pilot must hav

Irina-Kira [14]

Answer: See explanation

Explanation:

From the information given, we are informed that an instrument rated pilot is planning a flight under IFR on July 10, this year.

It should be noted that before conducting the flight, the pilot must have performed and logged the prescribed tasks and repetitions that are required for instrument currency no earlier than January, 10 for the year.

5 0

3 years ago

Suppose a 125 N force is applied to a lawnmower handle at an angle of 35° with the ground and the lawnmower moves along the surf

oksano4ka [1.4K]

Answer:

Workdone is 5734.06Nm.

Explanation:

<u>Given the following data;</u>

Force applied = 125N

Angle = 35°

Distance = 56m

To find the workdone by the lawnmower, we would first of all find the horizontal component of the force applied.

$Horizontal force, Fx = mgCosd$

Where;

Fx represents the horizontal force.

m is the mass of an object.

g is the acceleration due to gravity.

d is the angle of inclination (theta).

mg = weight = 125N

Substituting into the equation, we have;

$Fx = 125 * Cos35$

$Fx = 125 * 0.8192$

Fx = 102.39N

Workdone is given by the formula;

$Workdone = force * distance$

$Workdone = 102.39 * 56$

Workdone = 5734.06Nm

<em>Therefore, the work done by the lawnmower is 5734.06Nm</em>.

4 0

3 years ago

What is the answer ?

Fofino [41]

P= mv
p=(.5)(20)
p=10 kg/ms

7 0

3 years ago

At a given moment the particle is moving in the x direction (and the magnetic field is always in the z direction). If q is posit

hram777 [196]

Answer:

(-y)-direction.

Explanation:

The force created by the magnetic field on a moving object is

$\vec{F}_B = q\vec{v} \times \vec{B}$

So the directions are

$\vec{F}_B = \^x \times \^z = -\^y$

The direction can also be found by the right-hand rule.

Point your index finger in the direction of velocity. Point your middle finger in the direction of magnetic field. Your thumb will point towards the direction of the force.

3 0

3 years ago

A solenoid is created by wrapping a L = 85 m long wire around a hollow tube of diameter D = 2.5 cm. The wire diameter is d = 0.7

Dennis_Churaev [7]

the answer is d hope it helps....

5 0

4 years ago