3 years ago

Which of the following is the least reliable source of background information for a scientific project?

Physics

2 answers:

garri49 [273]3 years ago

7 0

Answer:

general internet site

Explanation:

Alla [95]3 years ago

5 0

Answer:

General internet site

Explanation:

You might be interested in

Which organism would most likely have new gene combinations?

ella [17]

Answer:

a hamster resulting from sexual reproduction

4 0

2 years ago

A bobsled team accelerates the sled to go to 150 m/s in 3 seconds from rest.(a)What is the

Sergeeva-Olga [200]

Answer:

Explanation:

From the equation of Newton's laws of motion

v = u + at where v is final velocity , u is initial velocity and t is time.

150 = 0 + a x 3

a = 50 m / s ²

s = ut + 1/2 at² ; s is distance travelled

s = 50 x 3 + .5 x 50 x 3²

= 150 + 225

= 375 m .

7 0

3 years ago

The displacement (in centimeters) of a particle moving back and forth along a straight line is given by the equation of motion s

Veseljchak [2.6K]

Answer:

$v_{avg} = 0$

Explanation:

The object is moving to and fro about its mean position

and the equation for its displacement is given as

$s = 5 sin(\pi t) + 5 cos(\pi t)$

now in one complete time period we know that the the object will complete its one oscillation

So the change in the position of the object in one complete time period will be ZERO

so here we can say that

$v_{avg} = \frac{displacement}{time}$

since change in position is zero

so displacement = 0

$v_{avg} = 0$

4 0

3 years ago

Name two appliance that use electromagnet.

Bess [88]

Answer:

Electromagnets are very widely used in electric and electromechanical devices, including:

Motors and generators.

Transformers.

Relays.

Electric bells and buzzers.

Loudspeakers and headphones.

Actuators such as valves.

Magnetic recording and data storage equipment: tape recorders, VCRs, hard disks.

6 0

3 years ago

Read 2 more answers

Sanjeev noticed his plants were wilting and turned on the sprinklers in his garden. An hour later, he notices that the plant's l

alexira [117]

Answer:

Explanation:

3 0

2 years ago

Read 2 more answers