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OLga [1]
2 years ago
15

Move the chemistry book across the physics book again. study the thermometer to determine whether there’s a change in the physic

s book’s temperature. what do you find?
Physics
1 answer:
jekas [21]2 years ago
6 0

Heat is always transferred through the movement of matter in the convection mode of heat transmission.

<h3>What is heat transfer ?</h3>

Heat transfer is the movement of heat from one solid or liquid item to another. Always, heat moves from one body with a greater temperature to one with a lower temperature. To put it another way, heat always transfers from a hotter body to a cooler body.

  • Heat energy is transferred through the mechanism of conduction when nearby atoms or molecules collide. In solids and liquids, where particles are more closely spaced, conduction happens more easily than in gases, where particles are more widely spaced.

  • Here we can say that heat is transfer when there is movement between two books and hence there is change in temperature.

Learn more about Heat transfer here:

brainly.com/question/12072129

#SPJ4

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Give an example of intense aerobics activity. Prompt must be accurate. ​
Lubov Fominskaja [6]

Answer:

Explanation:

An example of an intense aerobic activity would be running/ sprinting sprinting targets six specific muscle groups: hamstrings, quadriceps, glutes, hips, abdominals and calves. Sprinting is a total body workout featuring short, high-intensity repetitions and long, easy recoveries.

7 0
3 years ago
17. If ice has a density of 0.92g/cm?, what is the mass of a 30 cm block?<br> I
arsen [322]

Answer:

Mass = 27.6 grams

Explanation:

Given the following data;

Density of ice = 0.92g/cm³

Volume = 30cm³

To find mass of ice;

Density can be defined as mass all over the volume of an object.

Simply stated, density is mass per unit volume of an object.

Mathematically, density is given by the equation;

Density = \frac{mass}{volume}

Making mass the subject of formula, we have;

Mass = density * volume

Mass = 0.92 * 30

Mass = 27.6 grams

Therefore, the mass of ice is 27.6 grams.

3 0
3 years ago
(a) How can a driver steer a car traveling at constant speed so that the acceleration is zero? (Assume that the road is level. S
PilotLPTM [1.2K]

Explanation:

(a) We know that the acceleration of the car is given by :

a = change in speed / time taken

If the speed of the car is constant in a straight line, the acceleration of the car is zero because there is no change in the speed of the car.

(b) For the driver steer a car traveling at constant speed so that the magnitude of the acceleration remains constant, the driver should drive the car in the circular path. This is because, in circular path the speed of an object remains the same while its velocity changes.

8 0
3 years ago
A toy helicopter has a mass of .25 kg. The rotors of the helicopter exert an upward lift
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4 0
3 years ago
A china dish falls from a height of 1.5 m above the floor. Calculate its velocity just before it
alexandr402 [8]

Answer:

12m/s

Explanation:

v^2=u^2+2as

v=?

u=0 (the dish was stationary before it fell)

a=9.81 m/s^2 (acceleration due to gravity/freefall)

s=1.5m (the drop height)

So: v^2=0+2.9.81.1.5 = 144.35415

and therefore v=sqrt 144.35415

12x12=144 so I'd say v=12m/s

6 0
3 years ago
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