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3 years ago

Who is the inventor of the thermometer?

Physics

1 answer:

Trava [24]3 years ago

7 0

The answer is Galileo Galilei. Hope this helps :)

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Waves are observed passing under a dock. Wave crests are 8.0 meters apart. The time for a complete wave to pass by is 4.0 second

ki77a [65]

To answer that question, we don't care what the highest and lowest
levels of the wave are, or how far apart they are. We only need to be
able to identify the highest point on the wave, and keep track of how
often those pass by us.

You said it takes 4 seconds for a complete wave to pass by.
Through the sheer power of intellect, I'm able to take that information
and calculate that 1/4 of the wave passes by in 1 second.

There's your frequency . . . 1/4 per second, or 0.25 Hz.

6 0

2 years ago

An object is moving at 2.50 m/s [E]. At a time 3.00 seconds later the object is traveling at 1.50 m/s

babunello [35]

Given parameters:

First velocity = 2.50m/s

Time of travel = 3s

Second velocity = 1.50m/s

Unknown:

The displacement during the first interval = ?

Velocity is the displacement of a body with time. Displacement is a distance move in a specific direction by a body.

Velocity = $\frac{Displacement}{Time taken}$

So;

Displacement = Velocity x Time taken

Now input the parameter for the first velocity and time of travel;

Displacement = 2.5 x 3 = 7.5m

The displacement id 7.5m

7 0

2 years ago

A coil of 150 turns of wire is in the form of a circle of radius 7.5 cm, and sits in the center of a dipole magnet that produces

irga5000 [103]

Answer:

Current in the loop is 0.063 A

Explanation:

Number of turns in the coil N = 150

Radius of the circular loop r = 7.5 cm = 0.075 m

So area $A=\pi r^2=3.14\times 0.075^2=0.0176m^2$

Magnetic field B = 1.5 T

Maximum torque is given $\tau =0.25Nm$

We have to find current in the coil

Torque on circular coil in magnetic field is equal to

$\tau =BINA$

$0.25=1.5\times I\times 150\times 0.0176$

I = 0.063 A

7 0

2 years ago

When an object is raised vertically, work is done against __________. What one word completes the sentence?

Rasek [7]

Gravity Gravitational Force of Gravity

7 0

2 years ago

If the average pitcher is releasing the ball from a height of 1.8 m above the ground, and the pitcher's mound is 0.2 m higher th

neonofarm [45]

Answer: A. 2.0m above ground

Explanation:

Height of the pitcher from the floor of his mound = 1.8m

Height of the mound above the rest of the field = 0.2m

Since the height difference between the mound and the ground the catcher stands on = 0.2m and the pitcher throws the ball horizontally, then the catcher has to hold his glove at (1.8 + 0.2)m

above ground.

= 2.0m above ground (option A)

7 0

2 years ago