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Brums [2.3K]
3 years ago
14

A spacecraft is traveling in interplanetary space at a constant velocity. What is the estimated distance traveled by the spacecr

aft in 9.50 seconds?
A) 2.30×10^2
B) 2.42×10^2
C) 2.51×10^2
D) 3.02×10^2
Physics
2 answers:
nalin [4]3 years ago
7 0

Answer:

2.30 × 102 kilometers

Explanation:

PLATO

vekshin13 years ago
3 0

i would say that the correct answer would be cc


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son4ous [18]
<h2>Answer:Radiation-3,Conduction-1,Convection-2</h2>

Explanation:

Radiation is the transfer of heat through electromagnetic waves.

These waves do not require any medium.This is the way we get heat from sun.Radiation is the quickest mode to transfer of heat.

Conduction is the transfer of heat through collisions of atomic particles.

This phenomenon largely occurs in solids like metals.The neighbour atoms sets the atoms into random motion thereby raising the temperature.

Convection is the transfer of heat through actual movement of medium particle.

This phenomenon occurs in gases an liquids.The medium particles actually traverse through the space transferring the heat.

5 0
2 years ago
Heat is added to a 2kg piece of ice at a rate of 793kW. How long will it take for ice to melt if it was initially 0?
Ede4ka [16]

Answer:

0.84 s

Explanation:

Step 1

Given information:

Mass of the ice (m) = 2.0 kg

Heat transfer rate (Q/T) = 793.0 kW

Latent heat of fusion of ice (Lf) = 334 kJ/kg

\frac{Q}{T}  =  \frac{mLf}{T}

Substituting the corresponding values we have:

793.0 kW=  \frac{2.0kg(334 kJ/kg)}{T} \\  T  =  \frac{2.0kg(334 kJ/kg)}{793.0kW}  =  \frac{668kJ}{793kW}   \\  = 0.84s

8 0
2 years ago
Which of the following statements is true about conductors and insulators? Select all that apply.
ra1l [238]
Conductors have many free electrons
insulators have few free electrons
conductors are ideal for electrical wiring
6 0
3 years ago
Read 2 more answers
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sdas [7]

Answer:

Mechanical Advantage = Output Force/Input Force

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Explanation:

6 0
3 years ago
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Over [174]

Answer:

159 N

Explanation:

The force of friction, Fr is a product of coefficient of feiction and the normal force. Therefore, Fr=uN where N is the normal force and u is coefficient of friction. Here, we have two coefficients of friction but since it is sliding, then we use coefficient of kinetic energy. Substituting 0.25 for u and 636 N for N then

Fr=0.25*636=159 N

Therefore, the force of friction is equivalent to 159 N

4 0
3 years ago
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