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natulia [17]
3 years ago
11

A 1,300 kg wrecking ball hits the building at 1.07 m/s2.

Physics
2 answers:
dezoksy [38]3 years ago
7 0
So we know F=ma
m means mass and a means acceleration
so Force= ma
so F=1300X1.07=1391N
hope you like it
if it helps you please mark the answer as brainliest answer
tatuchka [14]3 years ago
6 0

F (force) = mass × acceleration.

<em>The unit N (Newton) is known as kilogram-meter/seconds2. </em>

<u>Thus, F = 1300 kg × 1.07 m/s2 = 1391 N. </u>

<u>The answer is 1391 N.</u>

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Which of the following quantities has the same dimensions as a speed? and why?
saveliy_v [14]

Answer:

the answer is at

Explanation:

Dimension of at = [ LT^-2 ] [ T ]

= [ LT^(-2+1) ]

= [ LT^-1 ]

which is same as dimension of speed.

6 0
3 years ago
Two asteroids in outer space collide, and stick together. The mass of each asteroid, and the velocity of each asteroid before th
Naddik [55]

Answer: (2) Use the Momentum Principle.

Explanation:

In fact, it is called the <u>Conservation of linear momentum principle,</u> which establishes the initial momentum p_{i} of the asteroids before the collision must be equal to the final momentum p_{f} after the collision, no matter if the collision was elastic or inelastic (in which the kinetic energy is not conserved).

In this sense, the linear momentum p of a body is defined as:

p=mV

Where m is the mass and V the velocity.

Therefore, the useful approach in this situation is<u> option (2)</u>.

7 0
3 years ago
Cindy exerts a force of 40 newtons and moves a chair 6 meters. Her brother Andy pushes a different chair for 6 meters while exer
sesenic [268]
Work formula:
W = F * d
F 1 = 40 N, d 1 = 6 m;
F 2 = 30 N; d 2 = 6 m.
W ( Cindy ) = 40 * 6 = 240 Nm
W ( Andy ) = 30 * 6 = 180 Nm
The difference of their amounts if work:
240 Nm - 180  Nm = 60 nm

hope it helps!
3 0
4 years ago
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3 years ago
A measure of the energy of motion of the particles in a substance is its
Alja [10]
Kinetic energy? Thermal energy? 
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3 years ago
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