A ball is thrown upward with an initial velocity of 20 m/s how high will it go

Which waves give off heat?

A - 4.0-µC charge is located 0.45 m to the left of a + 6.0-µC charge. What is the magnitude and direction (to the right or to the left) of the electrostatic force on the positive charge?

A model airplane with mass 0.5 kg hangs from a rubber band with spring constant 45 N/m. How much is the rubber band stretched when the model airplane hangs motionless?

A spacecraft has an orbit that just grazes earth's orbit at aphelion and just grazes venus's orbit at perihelion.

How do you find the scientific period and frequency

Which data set has the smallest standard deviation? A. 1,6,19,20,85,29,0 B. 22,22,23,23,22,22,23 C. 6, 7, 6, 7, 1004, 980, 350 D. 99, 199, 299, 55, 44,33, 22

To calculate the specific heat capacity of some liquid, we have poured 235 g of water at a temperature of 18.0°C into 250 g of this liquid at a temperature of 27.0 °C in a calorimeter with a heat capacity of 210 J/K. The temperature stabilized at 20.

How do you reduce friction

3. A 16 kg barrel is lifted up by a rope. The barrel accelerates at 1.4 m/s2. Find the force exerted by the rope. Show all your work. Answer:

I don't have it anymore since no one cared to answer