Answer:
3.8 m/s²
Explanation:
g = GM / R²
g = G (0.11 ME) / (0.53 RE)²
g = 0.39 G ME / RE²
g = 0.39 (9.8 m/s²)
g = 3.8 m/s²
Answer:
vote me brainliest! Please!
simple put is 3.8 m/s²
took it on edge 2020
An 11.98-gram sample of zinc metal is placed in a hot water bath and warmed to 78.4°C. It is then removed and placed into a Styrofoam cup containing 50.0 mL of room temperature water (T=27.0°C; density = 1.00 g/mL). The water warms to a temperature of 28.1°C. Determine the specific heat capacity of the zinc.
Answer:
383.34 J/kg.K
Explanation:
From the question,
Heat lost by zinc = heat gained by water in the Styrofoam cup.
c'm'(t₁-t₃) = cm(t₃-t₂).............. Equation 1
Where c' = specific heat capacity of zinc, m' = mass of zinc, t₁ = initial temperature of zinc, t₂ = initial temperature of water in the Styrofoam cup, t₃ = temperature of the mixture
Make c' the subject of the equation
c' = cm(t₃-t₂)/m'(t₁-t₃).............. Equation 2
given: m' = 11.98 g = 0.01198 kg, m = density of water×volume of water = (1×50) = 50 g = 0.05 kg, t₁ = 78.4°C, t₂ = 27°C, t₃ = 28.1°C
Constant: c = 4200 J/kg.K
Substitute these values into equation 2
c' = 0.05×4200(28.1-27)/[0.01198×(78.4-28.1)]
c' = 231/0.602594
c' = 383.34 J/kg.K
If one wave of 10 m amplitude meets constructively with another of amplitude 20
m, what is the new amplitude?
20 m
30 m
200 m
10 m
Answer:
B. 30m
Explanation:
This is because when a wave interferes constructively with another wave, they will add since constructive relates to joining or building up.
So, 10m + 20m equals a 30m wave.
A gene is
1. a change in a DNA sequence
2. the 2-letter code representing the alleles inherited from parents
3. a part of a chromosome that controls a particular trait, like eye color
4. a characteristic that is inherited, like eye color
Answer:
C - a part of a chromosome that controls a particular trait, like eye color
Explanation:
(if theres an option to pick two, i would pick C and D)
lake water flows downward through tunnels
Answer:
what's your question?
If a race car is traveling South due to a 30N force and the parachute deploys resulting in a 10N force North what is the Net Force (or Resultant Force)?
a) 40n east
b) 40n south
c) 10n west
d) 20n south
Answer:
F = 20 N south
Explanation:
It is given that,
Force applied on the racing car in south direction is 30 N and parachute deploys resulting in a 10 N force due North.
We need to find the net force on the car.
Let North denotes +y axis and South denotes -y axis.
So, F₁ = +10 N
F₂ = -30 N
Net force is :
[tex]F=F_1+F_2\\\\F=10+(-30)\\\\F=-20\ N[/tex]
It means that the net force is 20 N and it is acting in south. Hence (d) is correct.
A ball is dropped from rest from a Cliff and falls for 3 seconds.
Neglecting air resistance, the final velocity of the ball is
m/s. (g = -9.8 m/s2)
Enter the answer
Answer:
-29.4 m/s
Explanation:
Given:
v₀ = 0 m/s
t = 3 s
a = -9.8 m/s²
Find: v
v = at + v₀
v = (-9.8 m/s²) (3 s) + (0 m/s)
v = -29.4 m/s
The final velocity of a ball dropped from rest for 3 seconds is -29.4 m/s.
How to find final velocity?Given the following information:
The ball is dropped from rest.
The acceleration due to gravity is g = -9.8 m/s².
The time the ball falls is t = 3 seconds.
Use the following formula to calculate the final velocity of the ball:
v = v_0 + g × t
where:
v is the final velocity of the ball
v_0 is the initial velocity of the ball (which is 0 in this case)
g is the acceleration due to gravity
t is the time
v = 0 + (-9.8 m/s²) × 3 seconds
v = -29.4 m/s
Therefore, the final velocity of the ball is -29.4 m/s.
The negative sign indicates that the velocity is downwards.
Find out more on final velocity here: https://brainly.com/question/25905661
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True or False: when measuring speed the distance must be considered to be rectilinear (in a line)
Answer:
I'm pretty sure it's False
Answer:
I dont know if I'm correct but I have to go with False
Explanation: