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Lyrx [107]
3 years ago
15

Plzzz someone help me

Physics
2 answers:
Margarita [4]3 years ago
7 0
1) The object slows down due to kinetic friction.
2) The coefficient of kinetic friction is higher on a carpet than on the bare floor, therefore the object would slow down quicker on the carpet
padilas [110]3 years ago
7 0

Answer:

1) The object slows down due to kinetic friction.

2) The coefficient of kinetic friction is higher on a carpet than on the bare floor, therefore the object would slow down quicker on the carpet

i just copied the other one for pts sry

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A train accelerated from 5 km/hr in 0.5 hours. what was the rate of acceleration?
Bezzdna [24]
Acceleration is the simply rate of change in velocity, how much faster or slower is the object changing speed with respect to time.

A = v/t = 5 km/hr/0.5 hr

5/1/2 = 5 • 2 = 10 km/hr^2.

This would be the acceleration.
5 0
3 years ago
An example of a land feature formed by river erosion is?
KatRina [158]
<span>There are various examples of land features formed by river erosion. One of them is Delta. A delta is formed when sediments are deposited in a place where a river flow into an ocean or lake and build up a land form. Thus, a river delta is a land form that occurs as a result of deposition of sediments carried by a river as the flow leaves its mouth and enter a slow moving or stagnant water.</span>
7 0
3 years ago
small plastic container, called the coolant reservoir, catches the radiator fluid that overflowswhen the automobile engine becom
Ilia_Sergeevich [38]

Answer:

0.53 quart

Explanation:

The volume expansion of the coolant is gotten from ΔV = VγΔθ where ΔV   = change in volume of the coolant, V = initial volume of coolant = 15 quart, γ = coefficient of volume expansion of coolant = 410 × 10⁻⁶ /°C and Δθ = temperature change = θ₂ - θ₁ where θ₁ = initial temperature of coolant = 6 °C and θ₂ = final temperature of coolant = 92 °C. So, Δθ = θ₂ - θ₁ = 92 °C - 6 °C = 86 °C

Since, ΔV = VγΔθ

substituting the values of the variables into the equation, we have

ΔV = VγΔθ

ΔV = 15 × 410 × 10⁻⁶ /°C × 86 °C

ΔV = 528900 × 10⁻⁶ quart

ΔV = 0.528900 quart

ΔV ≅ 0.53 quart

Since the change in volume of the coolant equals the spill over volume, thus the overflow from the radiator will spill into the reservoir when the coolant reaches its operating temperature of 92 °C is 0.53 quart.

4 0
3 years ago
Light travels through air faster than it travels through water. How would
Airida [17]

Answer:

The fastest thing in the whole universe is the speed of light in a vacuum (like outer space!), clocking in at a great 2.99 x 108 m/s. Light travels in waves, and we call this traveling propagation. Propagation of waves has both a speed and a direction, called the velocity. The velocity of light changes depends on the material it travels through.

I hope it is helpful. Please mark as brilliant

4 0
3 years ago
A lion released from a cage leaps at 50 km per second in 14
gladu [14]
Answer: C

Explanation: Convert 50 km to m, and you get 50,000. You then divide by 14 and get 3,571.42....The closest answer is C
6 0
4 years ago
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