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4 years ago

Which three quantities can be used to calculate acceleration?

1 answer:

4 0

D is the correct answer, assuming that this is the special case of classical kinematics at constant acceleration. You can use the equation V = Vo + at, where Vo is the initial velocity, V is the final velocity, and t is the time elapsed. In D, all three of these values are given, so you simply solve for a, the acceleration.
A and C are clearly incorrect, as mass and force (in terms of projectile motion) have no effect on an object's motion. B is incorrect because it is not useful to know the position or distance traveled, unless it will help you find displacement. Even then, you would not have enough information to use a kinematics equation to find a.

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A book weighing 1.2 kg stands on the table. We place our hand on the book with a force of 15.3 N. The reaction force of the tabl

babunello [35]

Answer:

27 N

Explanation:

It will be the force of the book 1.2 kg * 9.81 m/s^2 PLUS the force of your hand 15.3 N ..... it will be in the OPPOSITE direction

1.2 * 9.81 + 15.3 = ~27.1 N

8 0

2 years ago

Explain why you can multiply both the numerator and denominator by the same number

faltersainse [42]

hope this help love y all!

3 0

3 years ago

Read 2 more answers

Cleaning pumps remove oil at the rate modeled by the function R, given by r of t equals 2 plus the cosine of the quantity pi tim

pychu [463]

Answer:

15.47 gallons

Explanation:

The pumps remove the oil at the rate modelled by

R(t) = 2 + cos(πt / 11) in gallon per hour

The oil removes in 6hours period is given by integral of R(t)

from t = 0 to t = 6

$Q = \int\limits^6_0 {R(t)} \, dt = \int\limits^6_0 {(2+ cos(\frac{\pi t}{11} })) \, dt$

$Q = [2t + \frac{sin(\frac{\pi t}{11}) }{\frac{\pi }{11} } ]_0^6$

$Q = [2(6) + \frac{11}{\pi } sin(\frac{6\pi }{11}) ] - [0 + \frac{11sin (0)}{\pi } ]$

$Q = [12 + \frac{11}{\pi } (0.9898)]\\\\Q = 12 + 3.465694\\\\Q = 15.465694\\\\Q = 15.47 gallons$

6 0

4 years ago

What are some of the major differences between the ancient Olympics and modern-day Olympics? List and describe at least two diff

umka21 [38]

Answer:

The ancient Olympic games only allowed people of Greek descent to participate. The Salt Lake City Olympics featured 2600 athletes from 77 countries. Only a few hundred athletes participated in the ancient games.

Only men were allowed to compete in the ancient Greek games. Athletic training in ancient Greece was part of every free male citizen's education. The first women to compete in the Olympics were Marie Ohnier and Mme. Brohy. They participated in croquet games in the 1900 Olympics.

3 0

3 years ago

The acceleration due to gravity is higher on juniper Than on earth. The mass and weight of rock on juniper compared to that on e

soldier1979 [14.2K]

Answer:

2.5 times higher then that on the Earth

Explanation:

Gravity is higher on Jupiter then on Earth because Jupiter is much bigger, because of it's mass compared to Earth the gravity on Jupiter is about 2.4 - 2.5 times higher then Earths surface gravity which means a rock on Jupiter would be around "2.4 - 2.5 times as heavier then it would be on Earth."

Hope this helps.

3 0

3 years ago