Weight = (mass) x (gravity)
Acceleration of gravity on Earth = 9.8 m/s²
Weight on Earth = (mass) x (9.8 m/s²)
Divide each side by (9.8 m/s²): Mass = (weight) / (9.8 m/s²)
Mass = (650 N) / (9.8 m/s²)
Mass = 66.33 kg (rounded)
Answer:
<em>The range is 35.35 m</em>
Explanation:
<u>Projectile Motion</u>
It's the type of motion that experiences an object projected near the Earth's surface and moves along a curved path exclusively under the action of gravity.
Being vo the initial speed of the object, θ the initial launch angle, and 
the acceleration of gravity, then the maximum horizontal distance traveled by the object (also called Range) is:
The projectile was launched at an angle of θ=30° with an initial speed vo=20 m/s. Calculating the range:
The range is 35.35 m
d. lower frequencies and low energy.
Explanation:
Microwaves and infrared waves are lower frequencies and lower energy waves.
They are both non-ionizing radiation.
- Microwaves and infrared waves are both electromagnetic waves.
- They do not require a material medium to be propagated in nature.
- They have little energy because the have very low frequency.
- They also have very long wavelengths.
learn more:
Electromagnetic radiation brainly.com/question/7590814
#learnwithBrainly
Average speed = (distance covered) / (time to cover the distance)
Average speed = (60 kilometers) / (4 hours)
Average speed = (60/4) kilometer/hour
<em>Average speed = 15 km/hr</em>
F=mass x acceleration = ma= 0.8*20 = 16N
