Does anybody know how to answer any of these questions? Any of them without a check mark.

Physics

1 answer:

aivan3 [116]3 years ago

3 0

Explanation:

sorry I can't help u right now

You might be interested in

Using what you know about newton's second law explain why a car with a lager mass use more fuel than a car with a smalle mass. a

NNADVOKAT [17]

The car with bigger Mass requires more fuel because More mass the heavier it gets. you can't grab the little car fuel tank and put it in the big car it will run out to fast.

overall answer : The bigger the mass = more weight which means it needs more fuel to run

3 0

3 years ago

9) An electrical appliance has a resistance of 25 N. When this electrical ap-

Neko [114]

(C)

Explanation:

From Ohm's law,

V = IR

Solving for I,

I = V/R

= (230 V)/(25 ohms)

= 9.2 A

6 0

3 years ago

The headlights of a typical truck are powered by a 12 V battery. What current do they draw if the resistance is 4.8 ohms?

vodomira [7]

Solve this using Olm's law, which relates current (C), voltage (V), and resistance (R). Olm's law says:
$I \: (current ) ={\frac {V \: (voltage) }{R\:(resistance)}}$

We are told that voltage, V = 12V, and resistance, R = 4.8 <span>Ω. Plug these values into the equation and solve for current:
</span> $I = \frac{V}{R}\\
I = \frac{12}{4.8}\\
I = 2.5A

$
<span>-----
Answer: Current = 2.5 Amperes</span>

6 0

3 years ago

Read 2 more answers

Help me please....................

maksim [4K]

You need to write the question for the solution.
Add the question then only can get the answer

8 0

4 years ago

This tasty snack starts as a kernel and is “popped” then

Veronika [31]

Popcorn can be popped by either of the three forms of heat transfer:

Conduction in a pan with hot oil on a stove element.

Convection by an air popper and warm air rising over a heating element... no direct contact with heat source.

Radiation is what occurs in a microwave. Invisible radiant heat activates water molecules in the popcorn.

All the above heat the kernel over 100 Celsius. Water vaporizes/boils (latent heat) and erupts through the kernel.

Mmmm popcorn watch out for the lipids (fat in the oil and butter)

6 0

3 years ago