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Anna35 [415]
3 years ago
14

Please help me i’ll give you brainlist

Physics
2 answers:
Diano4ka-milaya [45]3 years ago
6 0

Answer:

True

Explanation:

beks73 [17]3 years ago
5 0

Answer:

i think thats true

Explanation:

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Suppose you are running late in the morning and drying your hair in the kitchen with the hairdryer plugged into the outlet with
lesantik [10]

Answer:

Explanation:

It is given that Hair dryer , Toaster and coffeepot are working simultaneously with power 1200 W , 700 W and 800 W respectively.

So the total power of system is P_t=1200+700+800=2700\ W

it is given that they work properly until toast is on.

By switching on the toast, appliance stop working because it may cause the circuit to break to safeguard the circuit.

Circuit breaker frame  are used in home to prevent the short circuit              

7 0
4 years ago
HURRY!!! How does a sound wave travel through air?
Sergio039 [100]
Answer is B

Hope this helped!
8 0
3 years ago
Rewire each of the following using the correct prefix using 2 decimal places where applicable.
Ede4ka [16]

Answer:

a. 1.2×10^-6

b. 0.42×10^9

c. 246.8×10^3

d. 88

3 0
3 years ago
I NEED HELP ASAP!!!!!
Ratling [72]

Answer:

D) momentum of cannon + momentum of projectile= 0

Explanation:

The law of conservation of momentum states that the total momentum of an isolated system is constant.

In this case, the system cannon+projectile can be considered as isolated, because no external forces act on it (in fact, the surface is frictionless, so there is no friction acting on the cannon). Therefore, the total momentum of the two objects (cannon+projectile) must be equal before and after the firing:

p_i = p_f

But the initial momentum is zero, because at the beginning both the cannon and the projectile are at rest:

p_i = 0

So the final momentum, which is sum of the momentum of the cannon and of the projectile, must also be zero:

p_f = p_{cannon}+p_{projectile} =0

6 0
4 years ago
Which actions most likely cause the domains in a ferromagnetic material to align? Check all that apply. heating the material rub
ryzh [129]

Answer:

i. rubbing the material against a magnet

ii. placing the material in a magnetic field of opposite polarity

iii. placing the material near a strong magnet

Explanation:

Ferromagnetic materials are majorly metals which can be easily attracted by a magnet. ferromagnetic materials are made up of domains, behaves as minute pieces of magnet. They can be rearranged to align when under the influence of an external magnetic field.

The alignment of the domains in a ferromagnetic material can be caused by either of the following: rubbing the material against a magnet, placing the material in a magnetic field of opposite polarity, placing the material near a strong magnet.

8 0
3 years ago
Read 2 more answers
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