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trapecia [35]
3 years ago
14

A 10 kg ball is falling on the planet Mars. Mars has an acceleration due to gravity of about 4 m/s/s. What is the force of gravi

ty (or weight) of the ball on Mars?
A.6N
B.40N
C.0.4N
D.14N
Physics
1 answer:
sineoko [7]3 years ago
6 0

Answer:

The force of gravity = 40 N

Explanation:

Given that,

The mass of a ball, m = 10 kg

The acceleration due to gravity on the surface of Mars, a = 4 m/s²

We need to find the force of gravity of the ball on Mars. The force of gravity on an object is given by :

F = mg

Substitute all the values,

F = 10 kg × 4 m/s²

F = 40 N

Hence, the correct option is (B).

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Martin has hypothesized that the size and types of trees differ between valleys and higher elevations. He sets up a transect lin
pogonyaev

Answer: The dependent Variables include: Size and Types of trees.

The independent Variables include:

geographic elevations that is, valleys and the higher elevations.

Explanation:

The dependent variable simply refers to the variable a researcher tests or measures during an experiment. On the other hand, the independent variable simply refers to the variable that's controlled during an experiment.

Based on the definition above, the dependent variables include the size and the types of trees while the independent variables include the

geographic elevations that is, the valleys and the higher elevations.

3 0
3 years ago
A helix with 17 turns has height H and radius R. Charge is distributed on the helix so that the charge density increases like (i
marishachu [46]

The total charge on the helix is

  • Q = \frac{221}{2}\sqrt{(\frac{H}{17})^2+(2\piR)^2

Height of one turn = \frac{H}{n}

Horizontal distance in one turn = 2\pi R

<h3>length of spring in one turn is</h3>

l = \sqrt{h^2+(2\piR)^2}\\\\&#10;l = \sqrt{(\frac{H}{n})^2+(2\piR)^2}&#10;

So, the total length of spring

L = n*l\\\\&#10;L = n * \sqrt{(\frac{H}{n})^2+(2\piR)^2}&#10;

Therefore, charge on spring

Q = \frac{1}{2}*L*(13-0)\\\\&#10;Q = \frac{1}{2}*n\sqrt{(\frac{H}{n})^2+(2\piR)^2}*13\\\\&#10;Q = \frac{1}{2}*17*13\sqrt{(\frac{H}{17})^2+(2\piR)^2}\\\\&#10;Q = \frac{221}{2}\sqrt{(\frac{H}{17})^2+(2\piR)^2\\\\&#10;

For more information on linear charge density, visit

brainly.com/question/15359786

8 0
2 years ago
Some of the largest volcanoes in the solar system are on mars. The most likely explanation is that mars
ivolga24 [154]

Answer: Mars has lower gravity and lower magma buoyancy

Explanation: The gravity in mars is low. Low gravity affect the occurrence of volcanic eruptions. The buoyancy of the magma in Mars is lower and the depth of the magma chamber deeper (Buoyancy is the difference in density between the surrounding crust and the magma ascending for eruption). Olympus Mons which is larger and wider than mount Everest was formed as a result of overcoming of the low gravity and buoyancy by the magma to release enormous volume of magma to the surface.

Another reason why the volcanoes on Mars are so large is because the crust on Mars is static unlike Earth.

4 0
4 years ago
Can you please help me? It’s a science question and I really don’t know the answer
Svetllana [295]

Answer:

A. It will continue traveling at the same speed.

Explanation:

I'm not 100% sure on this answer, but if I had this question I would be confident in this answer. It makes sense because unbalanced forces cause an object to start, stop, slow down, or speed up. Without these forces, the object should just keep traveling at the same speed.

I hope this helps! Let me know if it's right or not. ☺

5 0
4 years ago
A block of mass 12.2 kg is sliding at an initial velocity of 3.9 m/s in the positive x-direction. The surface has a coefficient
Studentka2010 [4]

Answer:

Explanation:

a) Force of friction = μ R where μ is coefficient of kinetic friction and R is reaction force

R = mg where m is mass of the block

Force of friction F = μ x mg

= .173 x 12.2 x 9.8

= 20.68 N

b ) Only force of friction is acting on the body so

deceleration = force / mass = 20.68 / 12.2 = 1.7 m /s²

acceleration = - 1.7 m /s²

c )

v² = u² - 2 a s

v = 0 , u = 3.9 m /s

a = 1.7 m /s

0 = 3.9² - 2 x 1.7 x s

s = 4.47  m

5 0
3 years ago
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