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seraphim [82]
4 years ago
11

A bob of mass of 0.18 kilograms is released from a height of 45 meters above the ground level. What is the value of the kinetic

energy gained by the bob at the ground level?
A: 2.4 joules
B: 5.1 joules
C: 8.1 joules
D: 10.0 joules
Physics
2 answers:
il63 [147K]4 years ago
4 0
I think the best answer is b 
fomenos4 years ago
3 0

Answer:

The answer is c 8.1 j

Explanation:

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A horizontal pull A pulls two wagons over a horizontal frictionless floor, the first wagon is 500N, the second is 2000 N. The te
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<span>The force will be zero if the wagons are moving at a constant speed (i.e. not accelerating), as there is no frictional force to overcome. If the wagons are accelerating, the force will be proportional to the acceleration, and 20% of the force applied by A.</span>
5 0
4 years ago
Suppose the demand for air travel decreases (as illustrated in the graph below). A decrease in demand _____ the equilibrium pric
vfiekz [6]

Answer:

decreases, decreases

Explanation:

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4 0
4 years ago
A long wire carrying I=1.1A of constant current oriented North-to-South (and the current is running northwards) is placed horizo
Tema [17]

Answer:

The absolute value of the angular deviation is 39.3°.

Explanation:

Given that,

Current = 1.1 A

Distance = 0.9 cm

Magnetic field = 20μT

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Using formula of magnetic field

B=\dfrac{\mu_{0}I}{2\pi d}

Put the value into the formula

B=\dfrac{4\pi\times10^{-7}\times1.1}{2\pi\times0.9\times10^{-2}}

B=24.4\times10^{-6}\ T

B=24.4\ \mu T

We need to calculate the absolute value of the angular deviation

Using formula of direction

\theta=\tan^{-1}(\dfrac{B_{E}}{B_{w}})

\theta=\tan^{-1}(\dfrac{20 \mu}{24.4 \mu})

\theta=39.3^{\circ}

Hence, The absolute value of the angular deviation is 39.3°.

5 0
3 years ago
Please help !!!!!!!!!!
Natalka [10]

Answer:

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8 0
3 years ago
The ______ and _______ are used to calculate magnitude and direction of a resultant vector.
S_A_V [24]
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