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Masja [62]
3 years ago
11

HELP PLEASE

Physics
1 answer:
inna [77]3 years ago
7 0

Answer (A):

5.33m/s

Explanation:

acceleration = final velocity - initial velocity / time

Answer (B):

42.64

Explanation:

force = mass * acceleration

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Question 8 of 10
Iteru [2.4K]

Answer:

The correct answer is A    

Explanation:

In this exercise we are given a graph of temperature versus time.

In calorimeter processes there are two types

* one that when giving thermal energy to the system its temperature increases, this fundamentally due to the greater kinetic energy of the molecular ones, this process observes in the graphs as a straight line of constant slope

* A process donates all the thermal energy that is introduced is cracked in breaking the molecular bonds, taking matter from one thermodynamic state to another, for example: liquid to gas.

This process in curves as a horizontal line, that is, there is no temperature change,

When analyzing the graph shown, parts C and D are the one that show a change in temperature with thermal energy. The correct answer is A

7 0
3 years ago
A scientific blank must be testable and capable of being proven false?
coldgirl [10]
Answer: a scientific theory must be testable and capable of being proven false.
4 0
4 years ago
At what height must a 6-kilogram object be placed to have 12 joules of
Serga [27]

Answer:

0.2m

Explanation:

Using E=mgh

12=6*9.8*h

h=0.2m (1 d.p.)

4 0
4 years ago
What is the ratio of the gravitational pull of the sun on the moon to that of the earth on the moon? (assume the distance of the
professor190 [17]

Acceleration of Gravity Sun-Moon System

G = 6.67260E-11 m^3/(kg sec^2)
m1 = mass of Sun = 1.989E+30 kg
m2 = mass of Moon = 7.3476E+22 kg
r = distance between Sun and Moon = distance between Sun and Earth - distance between Earth and Moon = 149,600,000 km - 384,400 km

<span>g = 0.00596 m/s^2</span>
5 0
3 years ago
Which type of energy is associated with electric currents?
zalisa [80]
B. Electrical energy

 Among the choices given, the type of energy associated with electric currents is electrical energy. By its definition, electric current is the flow of charged particles through a conductor or a conduction medium, for example, a wire. Basically, it involves electricity. It is similar to water current but instead of water molecules, charged particles move down a conductor. These charged particles are mostly electrons which move freely and at random. When all the free electrons move in the same direction, a current is created.



8 0
4 years ago
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