All categories

3 years ago

Can a physical quantity have different dimensions in different systems of units?

Physics

2 answers:

Ede4ka [16]3 years ago

6 0

Answer:

yes.

Explanation:

becausehjjkvfdssaajkkbcsssddhkkgddd

Mars2501 [29]3 years ago

4 0

Answer: yes a quantity have different dimensions in different system of units . No,because in different system of units doesn't change the quantity but it only changes the numerical.

Good luck !

You might be interested in

A 75-hp (shaft output) motor that has an efficiency of 91% is worn out and is replaced by a high efficiency 75-hp motor that has

ZanzabumX [31]

Answer:

The heat gain of the room due to higher efficiency is 2.84 kW.

Explanation:

Given that,

Output power of shaft = 75 hp

Efficiency = 91%

High efficiency = 95.4%

We need to calculate the electric input given to motor

Using formula of efficiency

$\eta=\dfrac{Work\ Output}{Work\ input}$

$Work\ Input =\dfrac{Work\ output}{\eta}$

$Work\ Input =\dfrac{75\times746}{0.91}$

$Work\ Input =61483.51\ W$

$Work\ Input = 61.48 kW$

We need to calculate the electric input

For, heigh efficiency

$Work\ Input_{inc} =\dfrac{75\times746}{0.954}$

$Work\ Input_{int} =58647.7\ W$

$Work\ Input_{int} = 58.64\ kW$

The reduction of the heat gain of the room due to higher efficiency is

$Q=Work\ Input-Work\ Input_{int}$

Put the value into the formula

$Q=61.48 -58.64$

$Q=2.84\ kW$

Hence, The heat gain of the room due to higher efficiency is 2.84 kW.

3 0

3 years ago

An archer shoots an arrow into a target using a bow. If the "action" force is the force of the bowstring against the arrow, what

aliya0001 [1]

Weight of an arrow is 20 plus 3

8 0

3 years ago

Will give

Nataly [62]

Answer:

True

Explanation:

6 0

3 years ago

Read 2 more answers

Describe how varying the incline plane angle Affects the force

Greeley [361]

Answer: the force increases as the angle increases

Explanation:

If we assume the incline plane is frictionless, the only force acting on an object on the incline plane is the force of gravity:

$F=mg$

where m is the mass and g the acceleration due to gravity.

However, the actual force that makes the object sliding down along the incline is not the gravity itself, but the component of the force of gravity parallel to the surface of the incline, which is given by

$F_p = mg sin \theta$

where $\theta$ is the angle of the incline.

Therefore, we see that as the angle of the incline increases, the force on the object increases.

4 0

4 years ago

A 66.5kg astronaut is doing a repair in space on the orbiting space station. She throws a 2.30kg tool away from her at 3.10m/s r

MrRa [10]

Answer:

Explanation:

mass of astronaut, M = 66.5 kg

mass of tool, m = 2.3 kg

velocity of tool, v = 3.10 m/s

Let the velocity of astronaut is V.

(A) According to the conservation of moemntum

Momentum of astronaut = Momentum of tool

M x V = m x v

66.5 x V = 2.3 x 3.10

V = 0.107 m/s

(B) The direction of motion of astronaut is opposite to the direction of motion of tool.

6 0

3 years ago

Can a physical quantity have different dimensions in different systems of units?​

Can a physical quantity have different dimensions in different systems of units?