2 years ago

Using one or more of your senses to gather information is

Physics

2 answers:

Tom [10]2 years ago

6 0

It is called observation

valentinak56 [21]2 years ago

3 0

It is called observation because you observe with your nose by semlling things your eyes by looking at things your ears by hearing things your tongue by tasting things and your hands by feeling things

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7. All electromagnetic waves travel at the same speed in empty space, the

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Answer:

TRUE

Explanation:

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2 years ago

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An electric car is being designed to have an average power output of 4,600 W for 2 h before needing to be recharged. (Assume the

MAVERICK [17]

Answer:

a)3312 x 10⁴ J

b)I = 57.5 A

c)9200 W

Explanation:

Given that

P =4600 W

Time t= 2 h = 2 x 3600 s= 7200 s

We know that

1 W = 1 J/s

Energy stored in the battery = P .t

=4600 x 7200 J

=3312 x 10⁴ J

We know that power P given as

P = V .I

V=Voltage ,I =Current

4600 = 80 x I

I = 57.5 A

The energy supplied = 4600 x 2 = 9200 W

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3 years ago

A box sliding on a horizontal frictionless surface runs into a fixed spring, compressing it a distance x1 from its relaxed posit

inn [45]

Answer:twice of initial value

Explanation:

Given

spring compresses $x_1$ distance for some initial speed

Suppose v is the initial speed and k be the spring constant

Applying conservation of energy

kinetic energy converted into spring Elastic potential energy

$\dfrac{1}{2}mv^2=\dfrac{1}{2}kx_1^2----1$

When speed doubles

$\dfrac{1}{2}m(2v)^2=\dfrac{1}{2}kx_2^2----2$

divide 1 and 2

$\dfrac{1}{4}=\dfrac{x_1^2}{x_2^2}$

$x_2=2x_1$

Therefore spring compresses twice the initial value

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2 years ago

A car speeds up from 12.0 m/s to 16.0 m/s in 8.00s what is the acceleration

Lerok [7]

Answer:

0.5m/s²

Explanation:

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=(16-12)/8

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acceleration =0.5m/s²

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2 years ago

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1. According to Newton's third law of motion, how are action

san4es73 [151]

Answer:

you couldn't do this on your own or search it up on google

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