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8090 [49]
3 years ago
13

calculate the work done by 2N force directed at 30 degree to the vertical to move a 500g box a horizontal distance of 400 cm acr

oss a rough floor at constant speed of 0.5 m per second​
Physics
1 answer:
sattari [20]3 years ago
3 0

Answer:

there is no picture :o?

Explanation:

:oo

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What are the types of potential energy?
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Answer:

Gravitational, Electrical, Magnetic, elastic potential, and chemical energy

Explanation:

When I did some research, I found 5 types of potential energy, so list the four that either came up in your lesson or are familiar to you:

Gravitational, Electrical, Magnetic, elastic potential, and/or chemical energy.

7 0
3 years ago
Use of lubricants increase efficency of machine​
SSSSS [86.1K]

Answer:

Lubrication reduces friction and allows moving machine parts to slide smoothly past each other. Selecting the appropriate lubrication solution can help reduce premature bearing failures and increase machine uptime, productivity and energy efficiency.

Explanation:

5 0
3 years ago
A car is traveling at a constant speed of 20 m/s for 3 seconds. Then the driver puts on the brakes. The total distance the car t
yarga [219]

Answer:

15 seconds

Explanation:

If car was moving at 20m/s for 3 sec.

if car traveled 100m = 15 sec total

3 0
3 years ago
A hiker, caught in a rainstorm might absorb 1 liter of water in her clothing. if it is windy so that this amount of water is eva
NeTakaya

Water evaporates at 100⁰C

So change in temperature = 100-20 = 80⁰C

Amount of water to be evaporated = 1 liter = 1L*1kg/liter = 1 kg

Specific heat of water is 1 calorie/gram ⁰C = 4.186 joule/gram =4186 J/kg

So heat required E = mcΔT = 1 * 4186 *80= 334880 J =334.88 kJ

So amount of heat require to evaporate water = 334.88 kJ

4 0
3 years ago
Whenever a charged particle encounters a magnetic field, the particle tends to spiral around the magnetic field lines. as it doe
fomenos
The electromagnetic radiation produced when a charged particle moves spirally in a magnetic field is called <span>synchrotron radiation. This phenomenon occurs due to the fact the particle is accelerated radially (due to the presence of the magnetic field), and every charged particle when it is accelerated emits electromagnetic radiation.</span>
4 0
3 years ago
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