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Tems11 [23]
3 years ago
5

Lamar Gant, U.S. powerlifting star, became the first man to deadlift five times his own body weight in 1985. Deadlifting involve

s raising a loaded barbell from the floor toa position above the head with outstretched arms. Determine the work done by Lamar in deadlifting 300 kg to a height of 1.90 m above the ground. O 157.89 J 570.00 J 0.006 J 5,586.00 J​
Physics
1 answer:
Masja [62]3 years ago
4 0

Answer:

W = 5586[J]

Explanation:

Work in physics is defined as the product of force by a distance.

W=F*d

where:

W = work [J]

F = force = m*g [N]

m = mass = 300 [kg]

g = gravity acceleration = 9.81 [m/s²]

d = distance = 1.9 [m]

Now replacing:

W=m*g*d\\W=300*9.81*1.9\\W=5586[J]

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How does the distance traveled by the coin compare to its displacement after ten flips?
Nataliya [291]

Answer:

The positive velocity occurs the instant the coin leaves our hand. It immediately begins slowing up until its upward velocity becomes zero at the maximum height.

Explanation:

hope helps ohjieun and jannatparia

3 0
3 years ago
What mRNA sequence would result from the following DNA sequence?
Nezavi [6.7K]

Answer:

UAC CUG AGG AUC

Explanation:

<em>The mRNA sequence from ATG GAC TCC TAG DNA sequence would be </em><em>UAC CUG AGG AUC.</em>

<u>According to Chargaff's base pairing rule, the purine bases always pair with pyrimidine bases. Specifically, Adenine base must pair with Thymine base while Guanine base must pair with Cytosine base. In RNA, Thymine base is replaced with Uracil base.</u>

Hence:

ATG   GAC   TCC   TAG will pair with

UAC   CUG   AGG   AUC

5 0
3 years ago
A 2.0 kg block is given an initial speed of 8.0 m/s up an incline plane of angle 30° where the coefficient of friction is 0.35.
Korvikt [17]

Answer:

4.1 m

Explanation:

Given :

Mass of the block = m = 2 kg.

Initial velocity = v_{i} = 8 m/s

Angle of the incline = α = 30°

Coefficient of friction = μ = 0.35

Distance moved up the incline is calculated using the work energy theorem.

Work done by the net force =  change in kinetic energy of the object.

Net work = work done by friction + work done by the gravity component.

(- mg sin 30 - μ mg cos 30 ) d = 1/2m v_{f}^{2} - 1/2 m v_{i}^{2}

m cancels out when divided on both sides with m.

- [(9.8 sin 30 - ( 0.35  × 9.8 × cos 30) ] d = 1/2 ( 0² - 8² )

⇒ -7.87 d = -32

⇒ Distance traveled up the incline = d = 4.0658 m = 4.1 m

8 0
4 years ago
Do you think a population besides the moon jellies’ consumer population (sea turtles) and resource population (zooplankton) coul
kondor19780726 [428]

Answer:

I didn't quite understand your question, but the moon jelly population will increase if there are either more zooplankton or less sea turtles.

More zooplankton means more food => higher population

Less sea turtles means that the moon jelly will be lest often consumed => higher population

8 0
4 years ago
It is hot outside, and the air conditioning has been turned on inside two buildings. Building A's walls contain insulation, but
Vilka [71]

Answer:

building A because the insulation will keep the air in the building while more so building b will let the air flow out because there is no insulation

Explanation:

3 0
3 years ago
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