3 years ago

Which is the magnitude of the vector 13 m/s to the east

Physics

2 answers:

Anika [276]3 years ago

7 0

Answer:

The correct answer is 13 m/s.

Aliun [14]3 years ago

6 0

I don’t know undertansdsje

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A spring does 5.0 J of work on a 0.10-kg ball bearing in a pinball machine. The ball's

lisov135 [29]

Answer:

10m/s

Explanation:

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3 years ago

What provides the force on the person on the passenger seat?

Gennadij [26K]

There's the acceleration of the car that provides a force and the normal force of the seat cushion which pushes upwards against the passenger

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3 years ago

If you measure the amount of work accomplished in a particular time interval, u have measured-

serious [3.7K]

Answer:

The power

Explanation:

We know that the work definition is given by the following expression:

W = F * d

where:

F = force [Newtons] [N]

d = distance [meters] [m]

W = work [Joules]

And the expression that defines the work done by unit of time is called - <u>Power</u>, therefore:

P = W/t

where:

P = power [watts] [w]

W = work [Joules] [J]

t = time [seconds] [s]

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3 years ago

Jonathan must lift a 3000n rock using a lever. jonathan uses 300n of force to push down on the lever to move the rock. what is t

-Dominant- [34]

The load is the weight of the rock that Jonathan lifts:
$L=3000 N$
The effort instead is the force applied in input to the lever in order to lift the rock:
$E=300 N$

So, the ratio between load and effort for this exercise is
$\frac{L}{E}= \frac{3000 N}{300 N}=10$
So, the ratio is 10:1.

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3 years ago

A high-jump athlete leaves the ground, lifting her center of mass 1.8 m and crossing the bar with a horizontal velocity of 1.4 m

Romashka [77]

Answer:

The minimum speed when she leave the ground is 6.10 m/s.

Explanation:

Given that,

Horizontal velocity = 1.4 m/s

Height = 1.8 m

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Using conservation of energy