All categories

3 years ago

Oven mitts reduce which type of thermal energy transfer when you take a hot

Physics

1 answer:

ahrayia [7]3 years ago

3 0

Answer:

A) Conduction

Explanation:

The mitt keeps the heat from reaching your hand through conduction

You might be interested in

PLEASE HELP ME! THIS IS TIMED

vova2212 [387]

Vas happenin!!!

Hope your day is good

I would say observational tool

Hope this helps

*smiles*

6 0

3 years ago

Read 2 more answers

Why do our bodies age?

marysya [2.9K]

When our body reduces Collagen with ageing then, our bodies get aged

4 0

4 years ago

A typical cell phone charger is rated to transfer a maximum of 1.0 Coulomb of charge per second. Calculate the maximum number of

Alexandra [31]

Answer:

The maximum no. of electrons- $2.25\times 10^{22}$

Solution:

As per the question:

Maximum rate of transfer of charge, I = 1.0 C/s

Time, t = 1.0 h = 3600 s

Rate of transfer of charge is current, I

Also,

$I = \frac{Q}{t}$

Q = ne

where

n = no. of electrons

Q = charge in coulomb

I = current

Thus

Q = It

Thus the charge flow in 1. 0 h:

$Q = 1.0\times 3600 = 3600\ C$

Maximum number of electrons, n is given by:

$n = \frac{Q}{e}$

where

e = charge on an electron = $1.6\times 10^{- 19}\ C$

Thus

$n = \frac{3600}{1.6\times 10^{- 19}} = 2.25\times 10^{22}$

3 0

3 years ago

A motor boat is traveling east with a velocity of 7.3 meter/seconds. Its experiences a current of 0.34 meters/seconds from the e

andreev551 [17]

Since they're going in the same direction, just add the velocities together.

7.3 m/s + 0.34 m/s = 7.64m/s

3 0

3 years ago

Read 2 more answers

A 1.0 kg ball and a 2.0 kg ball are connected by a 1.1-m-long rigid, massless rod. The rod is rotating cw about its center of ma

katen-ka-za [31]

The torque that will bring the balls to halt, t = 0.34 Nm

What is rotating?

In physics and mechanics, torque is the rotational equivalent of linear force. It is also referred to as the moment, moment of force, rotational force, or turning effect, depending on the field of study. It represents the capability of a force to produce a change in the rotational motion of the body.

Center of Mass of Rod = (1 * 0 + 2.0 * 1.1) /(1.0 + 2.0)

Center of Mass of Rod = 0.73 m

ω = 21 rpm

ω = 21 * (2*pi)/60 rad/s

ω = 2.2 rad/s

Time to bring Halt = 5.2 s

Angular De-acceleration = 2.2/5.2 rad/s^2

α = 0.423 rad/s^2

We know,

torque = (moment of inertia) * (angular acceleration)

t = I * α

Where

I = m1*r1^2 + m2*r2^2

I = 1kg * (0.73)^2 + 2kg * (1.1-0.73)^2

I = 0.8067 kg*m^2

Substituting Values -

torque = 0.8067 Kg*m^2 * 0.423 rad/s^2

torque = 0.34 N*m

The torque that will bring the balls to halt, t = 0.34 Nm

To learn more about the torque the link is given below:

brainly.com/question/18883167?

#SPJ4

7 0

1 year ago