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marshall27 [118]
2 years ago
14

A metal ion (X) with a charge of 4+ is attracted to a nonmetal ion (Z) with a

Physics
1 answer:
Keith_Richards [23]2 years ago
8 0

Answer:

A) X3Z4

Explanation:

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9. Ripening is a _______________ and spoiling is a ______________.
IrinaK [193]

Answer:

C

Explanation:

Chemical reaction,physical

6 0
1 year ago
Read 2 more answers
You lift a large bag of flour from the floor to a 2.5m high counter, doing 400J of work in 2 seconds. How much force did you app
oksian1 [2.3K]
<h2>The man have to apply force of 160 N</h2>

Explanation:

The work done to lift the bag of weight mg through height 2.5 m is 400 J

The work done can be found by relation  W = mg x h

Thus mg = \frac{W}{h} = \frac{400}{2.5} =  160 N

Therefore the man have to apply the force of 160 N

7 0
3 years ago
Read 2 more answers
A 3kg object has an initial velocity (6i - 2j) m/s (a ) what is its kinetic energy at this time? (b) Find total work done on the
guapka [62]

Answer:

K.E =  \frac{1}{2} m {v}^{2}  \\  {v}^{2}_i  =  {v}^{2} _x + {v}^{2} _y \\  =  {(6)}^{2}  +  {( - 2)}^{2}  = 36 + 4 = 40m. {s}^{ - 1} \\ K.E_i =  \frac{1}{2} (3) (40) = 60J \\  \\ {v}^{2}_f  =  {v}^{2} _x + {v}^{2} _y \\  =  {(8)}^{2}  +  {(4)}^{2}  = 80m. {s}^{ - 1} \\ K.E_i =  \frac{1}{2} (3) (80) = 120J \\ W_{net}=K.E_f-K.E_i \\  = 120J - 60J \\  = 60J

3 0
2 years ago
True or False: Speed is a vector quantity.
Travka [436]

Answer:

it's false coz

Speed is a scalar quantity.

3 0
2 years ago
Read 2 more answers
How much heat is absorbed by 60g of copper when it is heated from 20°C to 80°C
nexus9112 [7]

Answer:

I HOPE THIS IS CORRECT

Explanation:

It is heated from 20°C to 80°C. We need to find the heat absorbed. It can be given by the formula as follows : So, 1386 J of heat is absorbed.

7 0
2 years ago
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