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loris [4]
3 years ago
6

The term big bang nucleosynthesis refers to the formation during the big

Physics
1 answer:
Reil [10]3 years ago
3 0

Answer:

D. Light elements

Explanation:

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A 1200 kg car reaches the top of a 100 m high hill at A with a speed vA. What is the value of vA that will allow the car to coas
SVEN [57.7K]

Answer:

the value of vA that will allow the car to coast in neutral so as to just reach the top of the 150 m high hill at B with vB = 0 is 31.3 m/s

Explanation:

given information

car's mass, m = 1200 kg

h_{A} = 100 m

v_{A} = v_{A}

h_{B} = 150 m

v_{B} = 0

according to conservative energy

the distance from point A to B, h = 150 m - 100 m = 50 m

the initial speed v_{A}

final speed  v_{B} = 0

thus,

v_{B}² = v_{A}² - 2 g h

0 = v_{A}² - 2 g h

v_{A}² = 2 g h

v_{A} = √2 g h

    = √2 (9.8) (50)

    = 31.3 m/s

8 0
3 years ago
How far does a sled travel in 5 seconds while accelerating from 4 m/s to 10 m/s?
mina [271]

Answer:

All we need to know for this is SUVAT equations. There are 5 SUVAT equations you need to learn. S = distance, U = initial velocity, V = final velocity, A = acceleration, T = time V= U + AT V^2 = U^2 + 2AS S = UT + 1/2AT^2 S = VT -

Explanation:

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3 0
3 years ago
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A cannon ball is fired with an initial velocity of 75 m/s at an angle of 58 degree above the ground. What maximum height will it
KiRa [710]

Answer:

h = 206.4 m

range = 515.9 m

Explanation:

from the question we are given the following:

initial velocity (u) = 75 m/s

angle  above surface = 58 degrees

acceleration due to gravity (g) = 9.8 m/s^{2}

find the maximum height (h) and the horizontal distance

maximum height (h) = \frac{u^{2}sinθ^{2}  }{2g}

h =  \frac{75^{2}sin58^{2}  }{2 x 9.8}

h = 206.4 m              

the horizontal distance here is the range

range = \frac{u^{2}sin2θ }{g}

range = \frac{75^{2}sin(2 x 58) }{9.8}

range = 515.9 m

7 0
3 years ago
In this experiment, you will use a track and a toy car to explore the concept of movement. You will measure the time it takes th
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A question you can gather from this experiment is figuring out the distance traveled by the car, and how far it went. A simple solve of X equation could be used.
7 0
4 years ago
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What is a key difference between transverse and longitudinal waves?
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B, is the answer to the question

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