Ask question

Ask question

All categories

3 years ago

12

Motion and acceleration may only be used to refer to physical objects moving or changing speed/direction

1 answer:

san4es73 [151]3 years ago

6 0

Answer:

True

Explanation:

It is TRUE that Motion and acceleration may only be used to refer to physical objects moving or changing speed/direction.

This is because if an object is not moving or changing speed/direction to a determined point of reference, the object is considered to be at rest or motionless, thereby, with no absolute point of reference, absolute motion or acceleration cannot be distinguished.

You might be interested in

What factors can influence the rate of reaction

mario62 [17]

Temperature, Concentration, and Catalyst

7 0

3 years ago

Read 2 more answers

Which produces the most energy?

brilliants [131]

Fossil fuels and natural gases

6 0

3 years ago

Read 2 more answers

If scientists noted that a protozoan developed a cyst, they could safely assume that:

VikaD [51]

<span>If scientists noted that a protozoan developed a cyst, they could safely assume that: </span>the protozoan's living conditions deteriorated.

3 0

3 years ago

A sports car engine delivers 150 kW to the driveshaft with a thermal efficiency of 20%. The fuel has a heating value of 35 000 k

Andreyy89

Answer:600 kW

Explanation:

Given

Power delivered $P=150 kW$

Fuel heating value $q=35,000 kJ/kg$

thermal Efficiency $\eta =\frac{Power}{Heat}$

$0.2=\frac{150}{35,000\times \dot{m}}$

where, $\dot{m} =mass\ flow\ rate\ of\ fuel$

$\dot{m}=\frac{150}{35,000\times 0.2}$

$\dot{m}=0.0214 kg/s$

For an Engine

$q\dot{m}=P+Q_r , where Q_r=heat\ rejected$

$Q_r=q\dot{m}-P$

$Q_r=750-150=600 kW$

3 0

3 years ago

How much will a 200kg hippo accelerate if you push it with a force of 800 N?

Fantom [35]

Answer:

Explanation:

force = f, mass = m, acceleration = a

f = m a

m = 200 kg

f = 800 N

f = m a

800 = 200a

a = 800 / 200

<u><em>a = 4</em></u>

Hope this helps

plz mark as brainliest!!!!!!!

4 0

3 years ago