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grigory [225]
3 years ago
12

A car is traveling with a velocity of 40 m/s and has a mass of 1120kg the car has kinetic energy

Physics
1 answer:
alexdok [17]3 years ago
6 0
As shown in picture please give me Brainly list

You might be interested in
Please help and show workings. <br>​
Mnenie [13.5K]

Effective resistance = 2+1.5 = 3.5 ohms

Current in the circuit = 1.2 A

Lost volts in the battery = 1.8V

Current in one of the 3 ohms resistors = 0.6 A

I hope it helps

3 0
3 years ago
a Stone is dropped into a deep well and is heard to hit the water 3.41s after being dropped. determine the depth of the well
tangare [24]
Using SUVAT

U = 0 m/s
A = g = 9.8 ms^-2
T = 3.41 s
S = ?

s = ut + 1/2at^2
s = (0)(3.41) + 1/2(9.8)(3.41^)
s = 1/2(9.8)(3.41^2)
s = 1/2(9.8)(11.6281)
s = 56.97769 m
5 0
3 years ago
A coaxial cable consists of alternating coaxial cylinders of conducting and insulating material.
olga2289 [7]

Answer:

True

Explanation:

A coaxial cable is a type of cable that has an inner conductor surrounded by an insulating layer, surrounded by a conductive shielding.

4 0
3 years ago
is weigh-in time for the local under-85-kg rugby team. The bathroom scale used to assess eligibility can be described by Hooke’s
yulyashka [42]

Answer:

a) 156960 N/m

b) Yes the player can play on the team.

Explanation:

F = Force

a = Acceleration due to gravity = 9.81 m/s²

m = Mass

k = Spring constant

x = Deformation length of spring

F = ma

From Hooke's law

F=kx\\\Rightarrow ma=kx\\\Rightarrow k=\frac{ma}{x}\\\Rightarrow k=\frac{120\times 9.81}{0.0075}\\\Rightarrow k=156960\ N/m

The effective spring constant is 156960 N/m

When x = 0.48 cm = 0.0048 m

m=\frac{kx}{a}\\\Rightarrow m=\frac{156960\times 0.0048}{9.81}\\\Rightarrow m=76.8\ kg

The mass of the player is 76.8 kg which is less than the required mass limit of the players' which is 85 kg. So, the player is eligible to play.

5 0
3 years ago
Which of the following is equal to impulse?<br> A. Ft<br> B. m/s<br> C. pt<br> D. mv
tankabanditka [31]
Answer: A (Ft)

Explanation: The impulse experienced by the object equals the change in momentum of the object. In equation form, F • t = m • Δ v
5 0
3 years ago
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