Answer:
B) T > ma.
Explanation:
To solve this problem, we have to analyze the forces acting in the horizontal direction.
In the horizontal direction, we have:
- The horizontal component of the tension in the wire, , where T is the magnitude of the tension and the angle that the wire makes with the horizontal
Since this is the only force acting on the box in the horizontal direction, this is also the net force, so it is equal to the product of mass and acceleration (Newton's second law of motion):
where
m is the mass of the box
a is the acceleration
We can rewrite the equation as
The angle in this problem is , so
Therefore, the correct option is
B) T > ma.
To calculate the acceleration of the baseball, we use the expression F = ma where F is the force, m is the mass of the object and a is the acceleration. We calculate as follows:
F = ma
18000 = 0.15a
a = 120000 <span>m/s^2 ------> SECOND OPTION</span>
The mass of the car at the given kinetic energy is 920 kg.
The given parameters;
- initial velocity of the car, u = 22 m/s
- kinetic energy of the car, K.E = 222,640 J
Kinetic energy if the energy acquired by a body during its motion. This kinetic energy is the product of average velocity squared and mass of the object.
The mass of the car at the given kinetic energy is calculated as follows;
Thus, the mass of the car at the given kinetic energy is 920 kg.
Learn more here:brainly.com/question/23503524
A change in velocity is called 'acceleration'.
That means any change in speed or direction of the motion.
Answer:
I believe it's the small intestine
Explanation:
The small intestine absorbs most digested food molecules, as well as water and minerals, and passes them on to other parts of the body for storage or further chemical change. Specialized cells help absorbed materials cross the intestinal lining into the bloodstream.