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strojnjashka [21]
3 years ago
14

Which description correctly explains the malleable property of metals? a Metals are malleable because they are shiny b Metals ar

e malleable because they are brittle c Metals are malleable because they can be drawn into wire d Metals are malleable because they can be hammered into sheets.
Physics
1 answer:
dangina [55]3 years ago
7 0
The correct answer would be D.
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What is the energy required to change 600g of liquid into steam if the specific heat latent is 4000 J/kg
Rzqust [24]

Answer:

2400 J

Explanation:

Latent heat: This is also called hidden heat, it is the heat that is not detectable by the thermometer.

From the question,

Q = cm.................. Equation 1

Where Q = Energy, c = specific latent heat of the liquid, m = mass of the liquid.

Given: c = 4000 J/kg, m = 600 g =( 600/1000) kg = 0.6 kg

Substitute these values into equation 1

Q = 4000×0.6

Q = 2400 J

Hence the energy required is 2400 J

6 0
3 years ago
14. A spoon is placed in a cup of hot
sweet [91]

Answer:

Specific heats

Explanation:

6 0
3 years ago
a 2.964 kilogram truck strikes a fence at 7.00 meters/second and comes to a stop in 1.9 seconds. what was the average force acti
tangare [24]

10.92N

Explanation:

Given parameters:

Mass of the truck = 2.964kg

velocity = 7m/s

Time = 1.9s

Unknown;

Average force on the car = ?

Solution:

The force acting on the car is a function of its mass and acceleration according the newton's second law of motion.

   Force = mass x acceleration

  Since acceleration = \frac{change in velocity}{time}

  Force = mass x \frac{change in velocity}{time}

   Force = \frac{2.964 x 7 }{1.9}

              = 10.92N

learn more:

Newton's laws brainly.com/question/11411375

#learnwithBrainly

8 0
3 years ago
When a car comes to a stop the car's brakes create an?
yawa3891 [41]
<span>Increased pressure to stop the movement. The brake reduces the acceleration of the engine. The brake absorbs energy at the wheels when it is applied to moving vehicles. It applies a counter torque to the engine. The friction force created by the break stops the vehicle.</span>
3 0
3 years ago
Which speed(s) is/are below the sound barrier in air? A. 257 m/s B. 1,030 m/s C. 10 m/s
Assoli18 [71]

The answers are A&C. please mark me brainliest

8 0
3 years ago
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