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Free_Kalibri [48]
3 years ago
10

A population of deer is defined by:

Physics
2 answers:
Nastasia [14]3 years ago
5 0

Answer:

the last one is false

Explanation:

got it right

nika2105 [10]3 years ago
4 0
1. A
2.B
3. True
4. False
5.B
6.B
7.B
8.True
9 true
10 true
11 true
12 C
13 D
15true
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What quantity of heat is required to change 20g of ice at -25°c to steam at 120°c
Oksana_A [137]

Answer: 5289 joules

Explanation:

The quantity of Heat Energy (Q) required to heat a substance depends on its Mass (M), specific heat capacity (C) and change in temperature (Φ)

Thus, Q = MCΦ

Since, Mass of ice = 20 g

C is not provided (Recall that the specific heat capacity of ice is 2.010J/g°C)

Φ = (Final temperature - Initial temperature)

(120°C - (-25°C) =

120°C + 25°C = 145°C

Thus, Q = 20g x 2.010J/g°C x 145°C

Q= 5829J

Thus, 5829Joules of heat energy is required to heat ice

6 0
3 years ago
A crane lifts 1800kg mass through a vertical height of 6cm in 9 seconds, Taking (g) as 10N/kg. what is the cranes power output?​
valkas [14]

Explanation:

power output=(1800×10×0.06)/9=120watts

6 0
3 years ago
A positively charged rod is brought close to one end of an uncharged metal rod but does not actually touch it. What type of char
svlad2 [7]

Answer:

The end of the neutral rod which is the closest part to the charged rod would acquire a negative charge.

Explanation:

One of the rods is positively charged and one of them is neutral.

And the important part is that <u>they do not touch one another</u>, but get close to each other.

In this case, the end of the neutral rod which is the closest part to the charged rod would acquire a negative charge. This is because of the Coulomb's Law. The opposite charges exert an attractive force to each other. The positive charges attract the negative charges on the neutral rod.

7 0
3 years ago
True or false? An object at rest has an instantaneous acceleration of zero.
Tpy6a [65]
True. it’s at rest which means it’s not moving so there’s no acceleration
8 0
3 years ago
A major contemporary learning view of personality which holds that personality traits result from a
DIA [1.3K]

Answer:

21

Explanation:

21 is x because 211211 1 1 1 1  1aghh

3 0
3 years ago
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