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irinina [24]
3 years ago
9

Given a force of 90 N and a acceleration of 30 m/s/s, what is the object’s mass?

Physics
2 answers:
vladimir2022 [97]3 years ago
7 0
The object’s mass is 3
marishachu [46]3 years ago
3 0
3 is the mass of the object
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Which action best demonstrates the transformation of mechanical energy to heat energy and light energy?
Vinvika [58]

Well, first off, mechanical energy is the sum of kinetic and potential energy in an object that is used to do work. In other words, it is energy in an object due to its motion or position, or both. Heat energy is the result of the movement of tiny particles called atoms, molecules or ions in solids, liquids and gases. Light energy is the only form of energy that we can actually see directly. It is formed through chemical, radiation, and mechanical means. Striking a match stick (mechanical energy) creates fire, which has a ton of heat energy, and produces light too, so the answer, is A. I hope i could help!

5 0
3 years ago
If the car has the same initial velocity, and if the driver slams on the brakes at the same distance from the tree, then what wo
Elena L [17]

Answer: The question is incomplete or some details are missing. Here is the complete question ; (a) The driver of a car slams on the brakes when he sees a tree blocking the road. The car slows uniformly with acceleration of −5.55 m/s2 for 4.05 s, making straight skid marks 63.0 m long, all the way to the tree. With what speed (in m/s) does the car then strike the tree? m/s

(b) What If? If the car has the same initial velocity, and if the driver slams on the brakes at the same distance from the tree, then what would the acceleration need to be (in m/s2) so that the car narrowly avoids a collision? m/s2

a ) With what speed (in m/s) does the car then strike the tree? m/s = 4.3125m/s

b) then what would the acceleration need to be (in m/s2) so that the car narrowly avoids a collision? m/s2 = -5.696m/s2

Explanation:

The detailed steps and calculation is as shown in the attached file.

6 0
3 years ago
Can you talk in space?
klio [65]
Astronauts in space<span> do </span>talk<span> to each other. In the spacecraft, there is plenty of air, so they just </span>talk<span> normally. When they are spacewalking, they </span>talk<span> by means of radios in their helmets. The radio waves, again, have no problem in </span>space<span>, but they're not sound.</span>
5 0
4 years ago
1. ¿Cuál es el actor clave de del exceso de peso corporal?
Slav-nsk [51]

El factor mas importante para el exceso de peso es un  exceso de energía creada por una alimentación excesiva

El peso de un cuerpo es definido por la relación entre la energía requerida para los procesos vitales del cuerpo, sus actividades físicas diarias y la energía suministra en forma de alimentos.

Cuando estos dos parámetros están en balance el peso es estable, pero cuando la cantidad de alimentos aumenta o el valor energético de los mismo aumenta se tiene un exceso de energía que el cuerpo almacena en forma de grasa corporal, este el el factor mas importante para el exceso de peso.

En conclusión el factor mas importante para el exceso de peso es un  exceso de energía por una alimentación excesiva

aprende mas acerca del peso corporal aquí:

brainly.com/question/13032223

8 0
3 years ago
Which of the following describes the motion or change caused by a transformation from electrical to sound energy? (2 points) a A
hodyreva [135]

Answer:

d.music comes out from a television speaker

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because television use electricity (electrical energy) and produce sound (sound energy) that we hear while watching tv

7 0
3 years ago
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